Bedrock Protocol

Remember that this page is a WIP. Come back later to see a more complete page. Consider visiting the Official Docs

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Heads up! This article is about the protocol for the release of Minecraft Bedrock Edition (1.16.220, protocol 431). See Protocol for the Java Edition Protocol.

This is the Bedrock Edition Protocol Documentation. The Bedrock Edition Protocol uses UDP instead of TCP that is used for the Java Edition. Bedrock Edition uses RakNet as its protocol library.

The default Bedrock Edition port is 19132.

Information for this page was obtained from the NukkitX Protocol library, MiNET and gophertunnel.

Data types

	Size (Bytes)	Range	Notes
Byte	1	0 to 255	Basically a unsigned byte
Boolean	1	0 or 1	A Byte treated as boolean, 0 is false but anything greater than that is true
Short	2	-32768 to 32767
Unsigned Short	2	0 to 65535
Int	4	-2147483648 to 2147483647	Signed little-endian 32-bit Integer
Int (big endian)	4	-2147483648 to 2147483647	Signed big-endian 32-bit Integer
Unsigned Int	4	0 to 4294967295	Unsigned 32-bit Integer
Long	8	-2^63 to 2^63-1	Signed 64-bit Integer
Unsigned Long	8	2^64-1	Unsigned 64-bit Integer
Float	4		A single-precision 32-bit IEEE 754 Floating poInt number
Double	8		A Double-precision 64-bit IEEE 754 Floating poInt number
VarInt	≥ 1 ≤ 5	0 to 4294967295
SignedVarInt	≥ 1 ≤ 5	-2147483648 and 2147483647
VarLong	≥ 1 ≤ 10
SignedVarLong	≥ 1 ≤ 10	-2^63 and 2^63-1
String			UTF-8 String prefixed with its size in Bytes as a VarInt. This has the same data structure as a ByteArray but it contains textual data.
Vector3	12		Three Float values (X, Y and Z respectively)
Vector2	8		Two Float values (X and Y respectively)
NBT
ByteArray			An arbitrary array of Bytes prefixed with its size in Bytes as a VarInt.
BlockCoordinates	≥ 3 ≤ 15		A SignedVarInt, a normal VarInt and another SignedVarInt (X, Y and Z respectively)
PlayerLocation	15		Three Float values (X, Y and Z respectively), followed by three Bytes (pitch, head yaw and yaw respectively). To convert the Bytes to normal pitch and yaw values divide them by 0.71
UUID	16	A UUID	Encoded as two unsigned 64-bit Integers: the most significant 64 bits and the least significant 64 bits

Types Table

Type Name
ActorLink
ActorRuntimeID
ActorUniqueID
AdventureSettings
BaseDescription
BaseGameVersion
BlockPos
CameraInstruction
CameraPreset
CameraPresets
ChunkPos
CommandOriginData
CompoundTag
ContainerMixDataEntry
CraftingDataEntry
DataItem
DimensionDefinitionGroup
DimensionDefinitionGroup::DimensionDefinition
EduSharedUriResource
EducationLevelSettings
EntityNetId
Experiments
GameRulesChangedPacketData
InventoryAction
InventorySource
InventoryTransaction
ItemData
ItemEnchants
ItemInstanceUserData
ItemStackNetIdVariant
ItemStackRequestSlotInfo
ItemStackResponseContainerInfo
ItemStackResponseInfo
ItemStackResponseSlotInfo
LevelSettings
MapDecoration
MapItemTrackedActor::UniqueId
MaterialReducerDataEntry
MolangVariableMap
MoveActorAbsoluteData
MoveActorDeltaData
NetworkBlockPosition
NetworkItemInstanceDescriptor
NetworkItemStackDescriptor
NetworkPermissions
PackedItemUseLegacyInventoryTransaction
PlayerBlockActionData
PlayerBlockActions
PositionTrackingId
PotionMixDataEntry
PropertySyncData
RecipeIngredient
RecipeUnlockingRequirement
ScoreboardId
SerializedAbilitiesData
SerializedAbilitiesData::SerializedLayer
SerializedSkin
ShapedChemistryRecipe
ShapedRecipe
ShapelessChemistryRecipe
ShapelessRecipe
ShulkerBoxRecipe
SmithingTransformRecipe
SmithingTrimRecipe
SpawnSettings
StructureEditorData
StructureSettings
SubChunkPacket::SubChunkPosOffset
SubChunkPos
SyncedPlayerMovementSettings
TypedClientNetId
TypedClientNetId
TypedServerNetId

Packet Format

Bedrock Edition uses RakNet as its protocol library, so the packets are sent that way. The UDP protocol specifies packet length, so unlike Java Edition and TCP which deal with raw data streams packets are not length-prefixed. Packets seem to always use compression and can also use encryption. Multiple packets can also be batched into a single packet. Packet compression uses zlib, and it seems that packet data can be fed directly into zlib (after being decrypted if encryption is enabled).

Refer to gophertunnel for more information.

Login process

The login process is as follows:

1. C→S: Request Network Settings
2. S→C: Network Settings
3. C→S: Login
4. S→C: Server To Client Handshake
5. C→S: Client To Server Handshake
6. S→C: Play Status (Login success)

To spawn, the following packets should be sent, in order, after the ones above:

1. S→C: Resource Packs Info
2. C→S: Resource Pack Client Response
3. S→C: Resource Pack Stack
4. C→S: Resource Pack Client Response
5. S→C: Start Game
6. S→C: Creative Content
7. S→C: Biome Definition List
8. S→C: Level Chunk
9. S→C: Play Status (Player spawn)

If there are no resource packs being sent, a Resource Pack Stack can be sent directly after Resource Packs Info to avoid the client responses.

Packets

Please note that some packet ids are missing, so they don't line up. The following packet ids are missing: 0x10, 0x74, 0x7F, 0x80 (16, 116, 127, 128)

Login

Sent when the client initially tries to join the server. It is the first packet sent and contains information specific to the player.

Packet ID	Bound To	Field Name	Field Type	Notes
0x01	Server	Protocol version	Int (big-endian)
		Chain data	JSON array of JWT Data	Contains the display name, UUID and XUID
		Skin data	JWT Data

Play Status

Packet ID	Bound To	Field Name	Field Type	Notes
0x02	Client	Status	Int (big-endian)	The current status of the connection.

The values for each status are as follows:

Status	Name	Notes
0	Login success	Sent after Login has been successfully decoded and the player has logged in
1	Failed client	Displays "Could not connect: Outdated client!"
2	Failed server	Displays "Could not connect: Outdated server!"
3	Player spawn	Sent after world data to spawn the player
4	Failed invalid Tenant	Displays "Unable to connect to world. Your school does not have access to this server."
5	Failed Vanilla Edu.	Displays "The server is not running Minecraft: Education Edition. Failed to connect."
6	Failed incompatible	Displays "The server is running an incompatible edition of Minecraft. Failed to connect."
7	Failed server full	Displays "Wow this server is popular! Check back later to see if space opens up. Server Full"

Server To Client Handshake

Packet ID	Bound To	Field Name	Field Type	Notes
0x03	Client	JWT data	JWT String	Contains the salt to complete the Diffie-Hellman key exchange

Client To Server Handshake

Sent by the client in response to a Server To Client Handshake packet sent by the server. It is the first encrypted packet in the login handshake and serves as a confirmation that encryption is correctly initialized client side. It has no fields.

Packet ID	Bound To	Field Name	Field Type	Notes
0x04	Server	This packet has no data.

Disconnect

Sent by the server to disconnect a client.

Packet ID	Bound To	Field Name	Field Type	Notes
0x05	Client	Hide disconnect screen	Boolean	Specifies if the disconnection screen should be hidden when the client is disconnected, meaning it will be sent directly to the main menu.
		Kick message	String	An optional message to show when disconnected.

Resource Packs Info

Packet ID	Bound To	Field Name	Field Type	Notes
0x06	Client	Forced to Accept	Boolean	If the resource pack requires the client accept it.
		Scripting Enabled	Boolean	If scripting is enabled.
		BehahaviorPackInfos	ResourcePackInfo[]	A list of behaviour packs that the client needs to download before joining the server. All of these behaviour packs will be applied together.
		ResourcePackInfos	ResourcePackInfo[]	A list of resource packs that the client needs to download before joining the server. The order of these resource packs is not relevant in this packet. It is however important in the Resource Pack Stack packet.

Resource Pack Stack

Packet ID	Bound To	Field Name		Field Type		Notes
0x07	Client	Forced to Accept		Boolean		If the resource pack must be accepted for the player to join the server.
		Resource Pack Entry	Field Name
		Array	Pack ID	String		The ID of the resource pack.
			Pack Version	String		The version of the resource pack.
			Subpack Name	String		The subpack name of the resource pack.
		Behavior Pack Entry	Field Name
		Array	Pack ID	String		The ID of the resource pack.
			Pack Version	String		The version of the resource pack.
			Subpack Name	String		The subpack name of the resource pack.
		Experimental		Boolean		If the sent resource and behavior packs are experimental.
		Game Version		String		The version of the game the sent resource and behavior packs were made for.

Resource Pack Client Response

Packet ID	Bound To	Field Name	Field Type	Notes
0x08	Server	Status	Byte	See below
		Pack IDs	ResourcePackIds	All of the pack IDs.

The values for each status are as follows:

Status	Name	Notes
0	None
1	Refused
2	Send packs
3	Have all packs
4	Completed

Text

Sent by the client to the server to send chat messages, and by the server to the client to forward or send messages, which may be chat, popups, tips etc.

Packet ID	Bound To	Field Name		Field Type	Notes
0x09	Server & Client	Type		Byte	The type of chat message sent.
		Needs Translation		Boolean	If the message sent is a translation key and needs to be translated.
		Chat Type ID	Text		Derived from above; values sent here change depending on that.
		0, 1, or 2	Source Name	String	The name of the source.
		3, 4, or 5	Message	String	The message sent with the packet.
		6, 7, or 8	Message	String	The message sent with the packet
			Parameters	Array	The parameters sent with the packet. This usually includes translation parameters or similar types depending on what kind of chat type was sent.
		XUID		Optional String	The XUID of the player who sent this message.
		Platform Chat ID		Optional String	The platform chat ID of the sent message.

ID	Chat Type
0	Raw
1	Chat
2	Translation
3	Popup
4	Jukebox Popup
5	Tip
6	System
7	Whisper
8	Announcement
9	Object
10	Object Whisper

For additional information and examples of all the chat types above, see here: https://imgur.com/a/KhcFscg

Set Time

Sent by the server to update the current time client-side. The client actually advances time client-side by itself, so this packet does not need to be sent each tick. It is merely a means of synchronizing time between server and client.

Packet ID	Bound To	Field Name	Field Type	Notes
0x0A	Client	Time	SignedVarInt	Time is the current time. The time is not limited to 24000 (time of day), but continues progressing after that.

Start Game

Sent by the server to send information about the world the player will be spawned in.

Packet ID	Bound To	Field Name	Field Type	Notes
0x0B	Client	Entity ID Self	SignedVarLong	The unique ID of the player. The unique ID is a value that remains consistent across different sessions of the same world, but most unofficial servers simply fill the runtime ID of the entity out for this field.
		Runtime Entity ID	VarLong	The runtime ID of the player. The runtime ID is unique for each world session, and entities are generally identified in packets using this runtime ID.
		Player Gamemode	SignedVarInt
		Spawn	Vector3	The spawn position of the player in the world. In servers this is often the same as the world's spawn position found below.
		Rotation	Vector2	The pitch and yaw of the player
		Seed	SignedVarInt	The seed used to generate the world. Unlike in Java edition, the seed is a 32bit Integer here.
		Spawn Biome Type	Short
		Custom Biome Name	String
		Dimension	SignedVarInt	Dimension is the ID of the dimension that the player spawns in. It is a value from 0-2, with 0 being the overworld, 1 being the nether and 2 being the end.
		Generator	SignedVarInt	Generator is the generator used for the world. It is a value from 0-4, with 0 being old limited worlds, 1 being infinite worlds, 2 being flat worlds, 3 being nether worlds and 4 being end worlds. A value of 0 will actually make the client stop rendering chunks you send beyond the world limit.
		World Gamemode	SignedVarInt	The game mode that a player gets when it first spawns in the world. It is shown in the settings and is used if the Player Gamemode is set to 5.
		Difficulty	SignedVarInt	Difficulty is the difficulty of the world. It is a value from 0-3, with 0 being peaceful, 1 being easy, 2 being normal and 3 being hard.
		World Spawn	BlockCoordinates	The block on which the world spawn of the world. This coordinate has no effect on the place that the client spawns, but it does have an effect on the direction that a compass poInts.
		Has achievements disabled	Boolean	Defines if achievements are disabled in the world. The client crashes if this value is set to true while the player's or the world's game mode is creative, and it's recommended to simply always set this to false as a server.
		Day cycle stop time	SignedVarInt	The time at which the day cycle was locked if the day cycle is disabled using the respective game rule. The client will maIntain this time as Boolean as the day cycle is disabled.
		EDU offer	SignedVarInt	Some Minecraft: Education Edition field that specifies what 'region' the world was from, with 0 being None, 1 being RestOfWorld, and 2 being China. The actual use of this field is unknown.
		Has Education Edition features enabled	Boolean	Specifies if the world has education edition features enabled, such as the blocks or entities specific to education edition.
		Education Production ID	String
		Rain level	Float	The level specifying the Intensity of the rain falling. When set to 0, no rain falls at all.
		Lightning level	Float	The level specifying the Intensity of the thunder. This may actually be set independently from the rain level, meaning dark clouds can be produced without rain.
		Has Confirmed Platform Locked Content	Boolean
		Is Multiplayer	Boolean	Specifies if the world is a multi-player game. This should always be set to true for servers.
		Broadcast To LAN	Boolean	Specifies if LAN broadcast was Intended to be enabled for the world.
		Xbox Live Broadcast Mode	VarInt	The mode used to broadcast the joined game across XBOX Live.
		Platform Broadcast Mode	VarInt	The mode used to broadcast the joined game across the platform.
		Enable commands	Boolean	If commands are enabled for the player. It is recommended to always set this to true on the server, as setting it to false means the player cannot, under any circumstance, use a command.
		Are texture packs required	Boolean	Specifies if the texture pack the world might hold is required, meaning the client was forced to download it before joining.
		GameRules	GameRules	Defines game rules currently active with their respective values. The value of these game rules may be either 'bool', 'Int32' or 'Float32'. Some game rules are server side only, and don't necessarily need to be sent to the client.
		Bonus Chest	Boolean	Specifies if the world had the bonus map setting enabled when generating it. It does not have any effect client-side.
		Map Enabled	Boolean	Specifies if the world has the start with map setting enabled, meaning each joining player obtains a map. This should always be set to false, because the client obtains a map all on its own accord if this is set to true.
		Permission Level	SignedVarInt	The permission level of the player. It is a value from 0-3, with 0 being visitor, 1 being member, 2 being operator and 3 being custom.
		Server Chunk Tick Range	Int	The radius around the player in which chunks are ticked. Most servers set this value to a fixed number, as it does not necessarily affect anything client-side.
		Has Locked Behavior Pack	Boolean	Specifies if the texture pack of the world is locked, meaning it cannot be disabled from the world. This is typically set for worlds on the marketplace that have a dedicated texture pack.
		Has Locked Resource Pack	Boolean	Specifies if the texture pack of the world is locked, meaning it cannot be disabled from the world. This is typically set for worlds on the marketplace that have a dedicated texture pack.
		Is From Locked World Template	Boolean	Specifies if the world from the server was from a locked world template. For servers this should always be set to false.
		Use MSA Gamertags Only	Boolean
		Is From World Template	Boolean	Specifies if the world from the server was from a locked world template. For servers this should always be set to false.
		Is World Template Option Locked	Boolean	Specifies if the world was a template that locks all settings that change properties above in the settings GUI. It is recommended to set this to true for servers that do not allow things such as setting game rules through the GUI.
		Only Spawn V1 Villagers	Boolean	A hack that Mojang put in place to preserve backwards compatibility with old villagers. The his never actually read though, so it has no functionality.
		Game Version	String	The version of the game from which Vanilla features will be used. The exact function of this field isn't clear.
		Limited World Width	Int
		Limited World Height	Int
		Is Nether Type	Boolean
		Is Force Experimental Gameplay	Boolean
		Level ID	String	A base64 encoded world ID that is used to identify the world.
		World name	String	The name of the world that the player is joining. Note that this field shows up above the player list for the rest of the game session, and cannot be changed. Setting the server name to this field is recommended.
		Premium World Template Id	String	A UUID specific to the premium world template that might have been used to generate the world. Servers should always fill out an empty String for this.
		Is Trial	Boolean	Specifies if the world was a trial world, meaning features are limited and there is a time limit on the world.
		Movement type	VarInt	Specifies the movement type as an ordinal - client authoritative (MovePlayerPacket), server authoritative (PlayerAuthInputPacket), or server authoritative with rewind
		Movement rewind size	Int	Always present, but only relevant if the movement type is server authoritative with rewind.
		Server authoritative block breaking	Boolean
		Current Tick	Long LE	The total time in ticks that has elapsed since the start of the world.
		Enchantment Seed	SignedVarInt	The seed used to seed the random used to produce enchantments in the enchantment table. Note that the exact correct random implementation must be used to produce the correct results both client- and server-side.
		Block Properties	Block Properties	An array of string followed by tag for each custom block on the server.
		Itemstates	Itemstates	A list of all items with their legacy IDs which are available in the game. Failing to send any of the items that are in the game will crash mobile clients. Each entry in the array consists of a string, followed by a Little Endian Short ID, followed by a boolean if the item is component based
		Multiplayer Correlation ID	String	A unique ID specifying the multi-player session of the player. A random UUID should be filled out for this field.
		Inventories server authoritative	Boolean	If true, the ItemStackRequestPacket is used to send inventory transactions. Otherwise, the InventoryTransactionPacket is used.

In order to use custom blocks, you must add data_driven_items as an ExperimentData in this packet with its value set to true [whether you need to add the experiment data to the resource pack process, like with items, has been untested]. A boilerplate representation of the NBT sent for a custom block is as follows:

{
  "components": {
    "minecraft:entity_collision": {
      "enabled": 0b,
      "origin": [
        -8.0f,
        0.0f,
        -8.0f
      ],
      "size": [
        16.0f,
        16.0f,
        16.0f
      ]
    },
    "minecraft:material_instances": {
      "mappings": {},
      "materials": {
        "*": {
          "ambient_occlusion": 1b,
          "face_dimming": 1b,
          "render_method": "opaque",
          "texture": "snow"
        }
      }
    },
    "minecraft:unit_cube": {}
  }
}

The block runtime ID is determined by the second part of the namespace, in alphabetical order. If the block is named wikivg:aaa, it will be placed at the beginning of the block runtime states. If the block is named wikivg:zzz, it will be placed at the end of the palette [most likely - naming a block "snow" caused other block states to shift].

Add Player

Sent by the server to make a player entity show up client-side. It is one of the few entities that cannot be sent using the Add Entity packet.

Packet ID	Bound To	Field Name	Field Type	Notes
0x0C	Client	UUID	UUID	UUID is the UUID of the player. It is the same UUID that the client sent in the Login packet at the start of the session. A player with this UUID must exist in the player list (built up using the Player List packet) for it to show up in-game.
		Username	String	Username is the name of the player. This username is the username that will be set as the initial name tag of the player.
		Entity ID Self	SignedVarLong	The unique ID of the player. The unique ID is a value that remains consistent across different sessions of the same world, but most unoffical servers simply fill the runtime ID of the player out for this field.
		Runtime Entity ID	VarLong	The runtime ID of the player. The runtime ID is unique for each world session, and entities are generally identified in packets using this runtime ID.
		Platform Chat ID	String	An identifier only set for particular platforms when chatting (presumably only for Nintendo Switch). It is otherwise an empty string, and is used to decide which players are able to chat with each other.
		Position	Vector3	The position to spawn the player at. If the player is at a distance that the viewer cannot see, the player will still show up if the viewer moves closer.
		Velocity	Vector3	The initial velocity the player spawns with. This velocity will initiate client side movement of the player.
		Rotation	Float	Pitch, yaw and head yaw
		Held Item	Item	The item that the player is holding. The item is shown to the viewer as soon as the player itself shows up. Needless to say that this field is rather pointless, as additional packets still must be sent for armour to show up.
		Metadata	MetadataDictionary	A map of entity metadata, which includes flags and data properties that alter in particular the way the player looks. Flags include ones such as 'on fire' and 'sprinting'. The metadata values are indexed by their property key.
		Flags	VarInt	Flags is a set of flags that specify certain properties of the player, such as whether or not it can fly and/or move through blocks.
		Command permission	VarInt	A set of permissions that specify what commands a player is allowed to execute.
		Action Permissions	VarInt	Action Permissions is, much like Flags, a set of flags that specify actions that the player is allowed to undertake, such as whether it is allowed to edit blocks, open doors etc.
		Permission Level	VarInt	The permission level of the player as it shows up in the player list built up using the PlayerList packet.
		Custom stored permissions	VarInt
		User Id	Long	A unique identifier of the player. It appears it is not required to fill this field out with a correct value. Simply writing 0 seems to work.
		Links	Links	A list of entity links that are currently active on the player. These links alter the way the player shows up when first spawned in terms of it shown as riding an entity. Setting these links is important for new viewers to see the player is riding another entity.
		Device ID	String	The device ID set in one of the files found in the storage of the device of the player. It may be changed freely, so it should not be relied on for anything.
		Device OS	Int	The build platform/device OS of the player that is about to be added, as it sent in the Login packet when joining.

Add Entity

Sent by the server to spawn an entity to the player. It is used for every entity except other players, paintings and items, for which the Add Player, Add Painting and Add Item Entity packets are used.

Packet ID	Bound To	Field Name	Field Type	Notes
0x0D	Client	Entity ID Self	SignedVarLong	The unique ID of the entity. The unique ID is a value that remains consistent across different sessions of the same world, but most unofficial servers simply fill the runtime ID of the entity out for this field.
		Runtime Entity ID	VarLong	The runtime ID of the entity. The runtime ID is unique for each world session, and entities are generally identified in packets using this runtime ID.
		Entity Type	String	The string entity type of the entity, for example 'minecraft:skeleton'.
		Position	Vector3	The position to spawn the entity at. If the entity is at a distance that the player cannot see, the entity will still show up if the player moves closer.
		Velocity	Vector3	The initial velocity the entity spawns with. This velocity will initiate client side movement of the entity.
		Rotation	Vector3	Pitch, yaw and head yaw
		Attributes	EntityAttributes	A slice of attributes that the entity has. It includes attributes such as its health, movement speed, etc.
		Metadata	MetadataDictionary	A map of entity metadata, which includes flags and data properties that alter in particular the way the entity looks. Flags include ones such as 'on fire' and 'sprinting'. The metadata values are indexed by their property key.
		Links	Links	A list of entity links that are currently active on the entity. These links alter the way the entity shows up when first spawned in terms of it shown as riding an entity. Setting these links is important for new viewers to see the entity is riding another entity.

Remove Entity

Sent by the server to remove an entity that currently exists in the world from the client-side. Sending this packet if the client cannot already see this entity will have no effect.

Packet ID	Bound To	Field Name	Field Type	Notes
0x0E	Client	Unique Entity Id	SignedVarLong	The unique ID of the entity to be removed. The unique ID is a value that remains consistent across different sessions of the same world, but most unofficial servers simply fill the runtime ID of the entity out for this field.

Add Item Entity

Sent by the server to make an item entity show up. It is one of the few entities that cannot be sent using the Add Entity packet.

Packet ID	Bound To	Field Name	Field Type	Notes
0x0F	Client	Entity ID Self	SignedVarLong	The unique ID of the entity. The unique ID is a value that remains consistent across different sessions of the same world, but most unofficial servers simply fill the runtime ID of the entity out for this field.
		Runtime Entity ID	VarLong	The runtime ID of the entity. The runtime ID is unique for each world session, and entities are generally identified in packets using this runtime ID.
		Item	Item	The item that is spawned. It must have a valid ID for it to show up client-side. If it is not a valid item, the client will crash when coming near.
		Position	Vector3	The position to spawn the entity on. If the entity is at a distance that the player cannot see, the entity will still show up if the player moves closer.
		Velocity	Vector3	The initial velocity the entity spawns with. This velocity will initiate client side movement of the entity.
		Metadata	MetadataDictionary	A map of entity metadata, which includes flags and data properties that alter in particular the way the entity looks. Flags include ones such as 'on fire' and 'sprinting'. The metadata values are indexed by their property key.
		Is From Fishing	Boolean	Specifies if the item was obtained by fishing it up using a fishing rod. It is not clear why the client needs to know this.

Take Item Entity

Sent by the server when a player picks up an item entity. It makes the item entity disappear to viewers and shows the pick-up animation.

Packet ID	Bound To	Field Name	Field Type	Notes
0x11	Client	Item Runtime Entity Id	VarLong	the entity runtime ID of the item that is being taken by another entity. It will disappear to viewers after showing the pick-up animation.
		Runtime Entity Id	VarLong	The runtime ID of the entity that took the item, which is usually a player, but could be another entity like a zombie too.

Move Entity Absolute

Sent by the server to move an entity to an absolute position. It is typically used for movements where high accuracy isn't needed, such as for long range teleporting. This packet is also sent by the client when riding a horse/donkey.

Packet ID	Bound To	Field Name	Field Type	Notes
0x12	Server & Client	Runtime entity id	VarLong	The runtime ID of the entity. The runtime ID is unique for each world session, and entities are generally identified in packets using this runtime ID.
		Flags	byte	A combination of flags that specify details of the movement. See below for more info.
		Position	PlayerLocation

Field	Bit	Notes
On ground	0x01	If the entity is touching the ground
Telported	0x02

Move Player

Sent by players to send their movement to the server, and by the server to update the movement of player entities to other players.

Packet ID	Bound To	Field Name	Field Type	Notes
0x13	Server & Client	Runtime entity id	VarLong	The runtime ID of the player. The runtime ID is unique for each world session, and entities are generally identified in packets using this runtime ID.
		Position	Vector3
		Rotation	Vector3	Pitch, yaw and head yaw
		Mode	Byte
		On ground	Boolean	Specifies if the player is considered on the ground. Note that proxies or hacked clients could fake this to always be true, so it should not be taken for granted.
		Riding runtime entity id	Float	The runtime ID of the entity that the player might currently be riding. If not riding, this should be left 0.
		Teleportation cause	VarLong	See below. Only needs to exist if Mode cause is 2 (teleport).
		Entity type	Byte	Only needs to exist if Mode cause is 2 (teleport).

Modes:

ID	Mode
0	Normal
1	Reset
2	Teleport
3	Rotation

Teleportation causes:

ID	Cause
0	Unknown
1	Projectile
2	Chorus fruit
3	Command
4	Behavior

Rider Jump

Sent by the client when it jumps while riding an entity that has the WASDControlled entity flag set, for example when riding a horse. According to MiNET this can also be sent from the server to the client, but details on this are unknown.

Packet ID	Bound To	Field Name	Field Type	Notes
0x14	Server & Client	Jump Strength	SignedVarInt	The strength of the jump, depending on how long the rider has held the jump button.

Update Block

Sent by the server to update a block client-side, without resending the entire chunk that the block is located in. It is particularly useful for small modifications like block breaking/placing.

Packet ID	Bound To	Field Name	Field Type	Notes
0x15	Client	Coordinates	BlockCoordinates	The block position at which a block is updated.
		Block Runtime ID	VarInt	The runtime ID of the block that is placed at Position after sending the packet to the client. The runtime ID must point to a block sent in the list in the Start Game packet.
		Flags	VarInt	See below. Flags is a combination of flags that specify the way the block is updated client-side. It is a combination of the flags below, but typically sending only the Network flag is sufficient.
		Layer	VarInt	The world layer on which the block is updated. In Bedrock, multiple blocks can be put in the same location using layers. The second layer is usually used for liquids, so blocks can be inside a liquid. For most blocks, this is the first layer, as that layer is the default layer to place blocks on, but for blocks inside of each other, this differs. As this system is designed with liquids, there may be bugs when using this to place blocks inside each other. For example, placing an interactable block such as an item frame on the second layer can cause a game crash if the player tries to interact with it.

Field	Bit	Notes
Neighbors	0x01
Network	0x02
No Graphic	0x04
Priority	0x08

Add Painting

Packet ID	Bound To	Field Name	Field Type	Notes
0x16	Client	Unique Entity Id	SignedVarLong	The unique ID of the entity. The unique ID is a value that remains consistent across different sessions of the same world, but most unofficial servers simply fill the runtime ID of the entity out for this field.
		Runtime Entity Id	VarLong	The runtime ID of the entity. The runtime ID is unique for each world session, and entities are generally identified in packets using this runtime ID.
		Position	Vector3	The position to spawn the entity at. If the entity is at a distance that the player cannot see, the entity will still show up if the player moves closer.
		Direction	SignedVarInt	The facing direction of the painting. See below.
		Name	String	This is the name of the painting (e.g. BurningSkull). See below.

Valid facing values:

• 0 - Facing towards positive Z (south)
• 1 - Facing towards negative X (west)
• 2 - Facing towards negative Z (north)
• 3 - Facing towards positive X (east)

Valid name values:

• Kebab
• Aztec
• Alban
• Aztec
• Aztec2
• Bomb
• Plant
• Wasteland
• Wanderer
• Graham
• Pool
• Courbet
• Sunset
• Sea
• Creebet
• Match
• Bust
• Stage
• Void
• SkullAndRoses
• Wither
• Fighters
• Skeleton
• DonkeyKong
• PoInter
• Pigscene
• BurningSkull

Tick Sync

Sent by the client and the server to maintain a synchronized, server-authoritative tick between the client and the server. The client sends this packet first, and the server should reply with another one of these packets, including the response time.

Packet ID	Bound To	Field Name	Field Type	Notes
0x17	Server & Client	Request Timestamp	Long
		Response Timestamp	Long

Level Sound Event (1)

Packet ID	Bound To	Field Name	Field Type	Notes
0x18	Server & Client	Sound ID	Byte
		Position	Vector3
		Block Id	SignedVarInt
		Entity Type	SignedVarInt
		Is baby mob	Boolean
		Is global	Boolean

Level Event

Packet ID	Bound To	Field Name	Field Type	Notes
0x19	Client	Event ID	SignedVarInt
		Position	Vector3
		Data	SignedVarInt

Block Event

Packet ID	Bound To	Field Name	Field Type	Notes
0x1A	Client	Block Position	BlockCoordinates
		Event Type	SignedVarInt
		Event Data	SignedVarInt

Entity Event

Packet ID	Bound To	Field Name	Field Type	Notes
0x1B	Server & Client	Runtime Entity ID	VarLong
		Event ID	Byte	See Bedrock Protocol/Entity Events
		Data	SignedVarInt

Mob Effect

Packet ID	Bound To	Field Name	Field Type	Notes
0x1C	Client	Runtime entity id	VarLong
		Event	Byte
		Effect id	SignedVarInt	See the Bedrock Edition section of Status effect#Effect_IDs
		Amplifier	SignedVarInt
		Particles	Boolean	If true, effect particles are not shown
		Duration	SignedVarInt

Events:

• 0: None
• 1: Add
• 2: Modify
• 3: Remove

Update Attributes

Packet ID	Bound To	Field Name	Field Type	Notes
0x1D	Client	Runtime Entity ID	VarLong
		Attributes	PlayerAttributes

Inventory Transaction

Packet ID	Bound To	Field Name	Field Type	Notes
0x1E	Server & Client	Transaction	Transaction

Mob Equipment

Packet ID	Bound To	Field Name	Field Type	Notes
0x1F	Server & Client	Runtime Entity ID	VarLong
		Item	Item
		Slot	Byte
		Selected Slot	Byte
		Windows Id	Byte

Mob Armor Equipment

Packet ID	Bound To	Field Name	Field Type	Notes
0x20	Server & Client	Runtime Entity ID	VarLong
		Helmet	Item
		Chestplate	Item
		Leggings	Item
		Boots	Item

Interact

Packet ID	Bound To	Field Name	Field Type	Notes
0x21	Server & Client	Action ID	Byte
		Target Runtime Entity ID	VarLong

Block Pick Request

Packet ID	Bound To	Field Name	Field Type	Notes
0x22	Server	Block Position X	SignedVarInt
		Block Position Y	SignedVarInt
		Block Position Z	SignedVarInt
		Add User Data	bool	Whether there should be NBT data in the picked block (activated by pressing Ctrl on default keyboard controls)
		Hotbar Slot	Byte

The Bedrock client sends the position of the block. It expects the server to decide the block to pick and add it to the inventory or switch the hotbar slot if needed.

Entity Pick Request

Packet ID	Bound To	Field Name	Field Type	Notes
0x23	Server	Runtime Entity ID	Unsigned Long
		Hotbar Slot	Byte	The held hotbar slot of the player at the time of trying to pick the entity. If empty, the resulting spawn egg will be put into this slot.

Player Action

Packet ID	Bound To	Field Name	Field Type	Notes
0x24	Server	Runtime Entity ID	VarLong
		Action ID	SignedVarInt
		Coordinates	BlockCoordinates
		Face	SignedVarInt

Entity Fall

Sent by the client when it falls from a distance onto a block that would damage the player.

This packet should not be used at all by the server, as it can easily be spoofed using a proxy or custom client. Servers should implement fall damage using their own calculations.

Packet ID	Bound To	Field Name	Field Type	Notes
0x25	Server	Runtime Entity Id	VarLong
		Fall Distance	Float	The distance that the entity fell until it hit the ground. The damage would otherwise be calculated using this field.
		In Void	Boolean	Specifies if the fall was in the void. The player can't fall below roughly Y=-40.

Hurt Armor

Sent by the server to damage the player's armor after being hit.

The packet should never be used by servers as it hands the responsibility over to the player completely, while the server can easily and reliably update the armor damage of players itself.

Packet ID	Bound To	Field Name	Field Type	Notes
0x26	Client	Health	SignedVarInt

Set Entity Data

Packet ID	Bound To	Field Name	Field Type	Notes
0x27	Server & Client	Runtime Entity ID	VarLong
		Metadata	MetadataDictionary

Set Entity Motion

Packet ID	Bound To	Field Name	Field Type	Notes
0x28	Server & Client	Runtime Entity Id	VarLong
		Motion X	Vector3
		Motion Y	Float
		Motion Z	Float

Set Entity Link

Packet ID	Bound To	Field Name	Field Type	Notes
0x29	Client	Ridden ID	SignedVarLong
		Rider ID	SignedVarLong
		Link Type	Byte
		Unknown	Byte

Set Health

Sent by the server to set the health of the player it is sent to.

This packet should no longer be used. Instead, the health attribute should be used so that the health and maximum health may be changed directly.

Packet ID	Bound To	Field Name	Field Type	Notes
0x2A	Client	Health	SignedVarInt

Set Spawn Position

Packet ID	Bound To	Field Name	Field Type	Notes
0x2B	Client	Spawn Type	SignedVarInt
		Block Position	BlockCoordinates	the new position of the spawn that was set. If spawnType is WORLD_SPAWN, compasses will point to this position. As of 1.16, blockPosition is always the position of the player.
		Dimension ID	Int
		Spawn Position	Vector3	Default -2147483648, -2147483648, -2147483648
		Forced	Boolean

Animate

Sent by the server to send a player animation from one player to all viewers of that player.

Packet ID	Bound To	Field Name	Field Type	Notes
0x2C	Server & Client	Action ID	SignedVarInt
		Runtime Entity ID	VarLong

Respawn

Packet ID	Bound To	Field Name	Field Type	Notes
0x2D	Server & Client	Position	Vector3
		State	Byte
		Runtime Entity ID	VarLong

States:

ID	Name
0	Server Searching
1	Server Ready
2	Client Ready

Container Open

Packet ID	Bound To	Field Name	Field Type	Notes
0x2E	Client	Window Id	Byte
		Type	Byte
		Block Position	BlockCoordinates
		Unique Entity Id	SignedVarLong

Bedrock needs either a valid block position, with an actual block at that position, or an entity ID for this to work. The entity must have CONTAINER_BASE_SIZE metadata, or the block must be a container. The entity ID is used for minecart chests etc. but any entity will work. If the entity has NAMETAG metadata this will be used as the container name.

Container Close

Packet ID	Bound To	Field Name	Field Type	Notes
0x2F	Server & Client	Window Id	Byte

Player Hotbar

Packet ID	Bound To	Field Name	Field Type	Notes
0x30	Server & Client	Selected Hotbar Slot	VarInt
		Container Id	Byte
		Select Hotbar Slot	Boolean

Inventory Content

Packet ID	Bound To	Field Name	Field Type	Notes
0x31	Server & Client	Inventory Id	VarInt
		Input	ItemStacks

Inventory Slot

Packet ID	Bound To	Field Name	Field Type	Notes
0x32	Server & Client	Inventory Id	VarInt
		Slot	VarInt
		Item	Item

Container Set Data

Packet ID	Bound To	Field Name	Field Type	Notes
0x33	Client	Window Id	Byte
		Property	SignedVarInt
		Value	SignedVarInt

Crafting Data

Since 1.16.200, each recipe must have a unique network ID. Otherwise, the client will crash.

Packet ID	Bound To	Field Name	Field Type	Notes
0x34	Client	Recipes	Recipes
		Potion type recipes	PotionTypeRecipe[]
		potion container recipes	PotionContainerChangeRecipe[]
		Is Clean	Boolean

Crafting Event

Packet ID	Bound To	Field Name	Field Type	Notes
0x35	Server & Client	Window ID	Byte
		Recipe Type	SignedVarInt
		Recipe ID	UUID
		Input	ItemStacks
		Result	ItemStacks

GUI Data Pick Item

Packet ID	Bound To	Field Name	Field Type	Notes
0x36	Client
		Item name	String	The name of the item that shows up in the top part of the popup that shows up when selecting an item. It is shown as if an item was selected by the player itself.
		Item effects	String	The line under the Item name, where the effects of the item are usually situated.
		Hotbar Slot	int	The hot bar slot to be selected/picked. This does not currently work, so it does not matter what number this is.

Sent by the server to make the client 'select' a hotbar slot. It currently appears to be broken however, and does not actually set the selected slot to the hotbar slot set in the packet.

Adventure Settings

Sent by the server to update gameplay related features, in particular permissions to access these features for the client.

It includes allowing the player to fly, build, and mine and attack entities. Most of these flags should be checked server-side instead of using this packet only.

The client my also send this packet to the server when it updates one of these settings through the in-game settings interface. The server should verify if the player actually has permission to update these settings.

Packet ID	Bound To	Field Name	Field Type	Notes
0x37	Server & Client	Flags	VarInt
		Command permission	VarInt
		Action permissions	VarInt
		Permission level	VarInt
		Custom stored permissions	VarInt
		User Id	Boolean

Block Entity Data

Packet ID	Bound To	Field Name	Field Type	Notes
0x38	Server & Client	Coordinates	BlockCoordinates
		NamedTag	NBT

Player Input

Sent by the client when the player is moving but the server does not allow it to update its movement using the Move Player packet. It includes situations where the player is riding an entity like a boat. If this is the case, the packet is sent roughly every tick.

Packet ID	Bound To	Field Name	Field Type	Notes
0x39	Server	Movement	Vec2	The movement vector of the input. It should be thought of in Pocket Edition controls, where specific arrows (or a combination of two, resulting in a diagonal arrow) decide the direction of movement. The movement vector typically has a length of 1: Either it has movement on one axis, or it has a combination, resulting in sqrt(2)/2 for both axes.
		Jumping	Boolean	Indicates if the player was pressing the jump button or not. It does not define if the player was actually in the air or not.
		Sneaking	Boolean	Indicates the player was sneaking during the input. Note that this may also be checked by keeping the sneaking state updated using the Player Action packet

Level Chunk

Packet ID	Bound To	Field Name	Field Type	Notes
0x3A	Client	Chunk X	SignedVarInt
		Chunk Z	SignedVarInt
		Sub Chunk Count	VarInt
		Cache Enabled	Boolean
		Chunk Data	ByteArray

Set Commands Enabled

This packet is sent to the client to enable or disable the ability to execute commands. If disabled, the client itself will stop the execution of commands.

Packet ID	Bound To	Field Name	Field Type	Notes
0x3B	Client	Commands enabled	Boolean

Set Difficulty

Sent by the server to update the client-side difficulty pf the client. The actual effect of this packet on the client isn't very significant, as the difficulty is handled server-side.

Packet ID	Bound To	Field Name	Field Type	Notes
0x3C	Client	Difficulty	VarInt

Change Dimension

Packet ID	Bound To	Field Name	Field Type	Notes
0x3D	Client	Dimension	SignedVarInt
		Position X	Float
		Position Y	Float
		Position Z	Float
		Respawn	Boolean

Set Player Game Type

Packet ID	Bound To	Field Name	Field Type	Notes
0x3E	Server & Client	Game mode	SignedVarInt

Player List

Packet ID	Bound To	Field Name	Field Type	Notes
0x3F	Client	Records	PlayerRecords

Simple Event

Packet ID	Bound To	Field Name	Field Type	Notes
0x40	Client	Event Type	Unsigned Short

Event

Packet ID	Bound To	Field Name	Field Type	Notes
0x41	Client	Runtime Entity ID	VarLong
		Event data	SignedVarInt
		Event type	Byte

Spawn Experience Orb

Sent by the server to spawn an experience orb entity client-side.

Packet ID	Bound To	Field Name	Field Type	Notes
0x42	Client	Position	Vector3
		Count	SignedVarInt

Map Item Data

Sent by the server to update the data of a map shown to the client. It is sent with a combination of flags that specify what data is updated.

The packet may be used to update specific parts of the map only. It is not required to send the entire map each time when updating one part.

TODO

Packet ID	Bound To	Field Name	Field Type	Notes
0x43	Client	Map ID	VarLong	The unique identifier that represents the map that is updated over network. It remains consitent across sesions.

Map Info Request

Sent by the client to request the server to deliver information of a certain map in the inventory of the player. The serve should respond with a Map Item Data packet.

Packet ID	Bound To	Field Name	Field Type	Notes
0x44	Server & Client	Unique Map Id	SignedVarLong

Request Chunk Radius

Sent by the client to update the server on the chunk view radius that it has set in the settings. The server may respond with a Chunk Radius Updated packet with either the radius requested, or a different chunk radius if the server chooses so.

Packet ID	Bound To	Field Name	Field Type	Notes
0x45	Server & Client	Chunk radius	SignedVarInt

Chunk Radius Updated

Sent by the server in response to a Request Chunk Radius packet. It defines the radius that the server allows the client to have. This may be lower than the chunk radius requested by the client.

Packet ID	Bound To	Field Name	Field Type	Notes
0x46	Client	Chunk radius	SignedVarInt

ItemFrame Drop Item

Sent by the client in creative mode when it wants to remove an item from an item frame. For survival mode, the player action types of START_BREAK and ABORT_BREAK are instead sent.

Packet ID	Bound To	Field Name	Field Type	Notes
0x47	Server & Client	Block Position	BlockCoordinates

Game Rules Changed

Packet ID	Bound To	Field Name	Field Type	Notes
0x48	Client	Rules	GameRules

Camera

Packet ID	Bound To	Field Name	Field Type	Notes
0x49	Client	Camera Unique Entity Id	SignedVarLong
		Player Unique Entity Id	SignedVarLong

Boss Event

Packet ID	Bound To	Field Name	Field Type	Notes
0x4A	Client	Boss Entity ID	SignedVarLong
		Event Type	VarInt

Show Credits

Sent by the server to show the Minecraft credits screen to the client. It is typically when the player beats the ender dragon and leaves the End.

Packet ID	Bound To	Field Name	Field Type	Notes
0x4B	Client	Runtime Entity ID	VarLong
		Status	SignedVarInt

Statuses:

ID	Name
0	Start Credits
1	End Credits

Available Commands

Packet ID	Bound To	Field Name	Field Type	Notes
0x4C	Client

Command Request

Packet ID	Bound To	Field Name	Field Type	Notes
0x4D	Server	Command	String
		Command type	VarInt
		Unknown UUID	UUID
		Request ID	String
		Unknown	Boolean

CommandBlock Update

Packet ID	Bound To	Field Name	Field Type	Notes
0x4E	Server	Is Block	Boolean

Command Output

Packet ID	Bound To	Field Name	Field Type	Notes
0x4F	Client

Update Trade

Packet ID	Bound To	Field Name	Field Type	Notes
0x50	Client	Window ID	Byte
		Window Type	Byte
		Unknown0	VarInt
		Unknown1	VarInt
		Unknown2	VarInt
		Is Willing	Boolean
		Trader Entity ID	SignedVarLong
		Player Entity ID	SignedVarLong
		Display Name	String
		NamedTag	NBT

Update Equip

Packet ID	Bound To	Field Name	Field Type	Notes
0x51	Client	Window ID	Byte
		Window Type	Byte
		Unknown	Byte
		Entity ID	SignedVarLong
		NamedTag	NBT

Resource Pack Data Info

Packet ID	Bound To	Field Name	Field Type	Notes
0x52	Client	Package ID	String
		Max Chunk Size	Unsigned Int
		Chunk Count	Unsigned Int
		Compressed Package Size	Unsigned Long
		Hash	ByteArray
		Is Premium	Boolean
		Pack Type	Byte

Resource Pack Chunk Data

Packet ID	Bound To	Field Name	Field Type	Notes
0x53	Client	Package ID	String
		Chunk Index	Unsigned Int
		Progress	Unsigned Long
		Payload	ByteArray

Resource Pack Chunk Request

Packet ID	Bound To	Field Name	Field Type	Notes
0x54	Server	Package ID	String
		Chunk Index	Unsigned Int

Transfer

Sent by the server to transfer a player from the current server to another. Doing so will fully disconnect the client, bring it back to the main menu and make it connect to the next server.

Packet ID	Bound To	Field Name	Field Type	Notes
0x55	Client	Address	String
		Port	Unsigned Short

Play Sound

Packet ID	Bound To	Field Name	Field Type	Notes
0x56	Client	Sound name	String
		Sound position	Position
		Volume	Float
		Pitch	Float

Stop Sound

Packet ID	Bound To	Field Name	Field Type	Notes
0x57	Client	Sound Name	String
		Stopping All Sound	Boolean

Set Title

Sent by the server to make a title, subtitle or action bar shown to a player. It has several fields that allow setting the duration of the titles.

Packet ID	Bound To	Field Name	Field Type	Notes
0x58	Client	Type	SignedVarInt
		Text	String
		Fade In Time	SignedVarInt
		Stay Time	SignedVarInt
		Fade Out Time	SignedVarInt

Add Behavior Tree

Sent by the server. Its usage remains unknown, as behavior packs are typically all sent at the start of the game.

Packet ID	Bound To	Field Name	Field Type	Notes
0x59	Client	Behavior Tree JSON	String

Structure Block Update

When client change the Structure Block Screen and close it, client will send it to server to update.

Packet ID	Bound To	Field Name	Field Type	Notes
0x5A	Client	Block Position	Block Position
		Structure Data	Structure Editor Data
		Trigger it?	Boolean

Structure Editor Data

Field Name	Field Type	Field Notes
Structure	String
Data Field	String	Used in datga mode
Included players?	Boolean
Show bounding box?	Boolean
Block Type	varint	Data = 0
		Save = 1
		Load = 2
		Corner = 3
		Invalid = 4
		Export = 5
		Cound = 6
Settings	Field Name	Field Type	Field Notes
	Palette Name	String
	Ignore Entities?	Boolean
	Ignore Blocks?	Boolean
	Size	Block Position
	Offset	Block Position
	Last Editor	Editor Unique ID
	Rotation	byte	None = 0
			90 = 1
			180 = 2
			270 = 3
			Total = 4
	Mirror	byte	None = 0
			X = 1
			Z = 2
			XZ = 3
	Animation Mode	byte	None = 0
			Layers = 1
			Blocks = 2
	Animation Seconds	float
	Integrity Value	fload
	Integrity Speed	Unsigned int
	Rotation Pivot	Vector3
Save Mode	varint	Memory = 0
		Disk = 1

Show Store Offer

Sent by the server to show a Marketplace store offer to a player. It opens a window client-side that displays the item.

The packet only works on partnered servers: Servers that are not partnered will not have a store button show up on the in-game pause menu and will, as a result, not be able to open store offers on the client side. Sending the packet does therefore not work when using a proxy that is connected to with the domain of one of the partnered servers.

Packet ID	Bound To	Field Name	Field Type	Notes
0x5B	Client	Offer Id	String
		Shown To All	Boolean

Purchase Receipt

Sent by the client to notify the server it purchased an item from the marketplace store that was offered by the server.

The packet is only used for partnered servers.

Packet ID	Bound To	Field Name	Field Type	Notes
0x5C	Server

Player Skin

Sent by the client when it updates its own skin using the in-game skin picker. It is relayed by the server, or sent if the server changes the skin of a player on its own accord.

Note that the packet can only be sent for players that are in the player list at the time of sending.

Packet ID	Bound To	Field Name	Field Type	Notes
0x5D	Server & Client	UUID	UUID
		Skin	Skin
		Skin Name	String
		Old Skin Name	String

Sub Client Login

Sent when an additional player attempts to join from a split screen session. The contents of the chain data and skin data fields use the same format as the Login packet, and can be decoded the same way.

Packet ID	Bound To	Field Name	Field Type	Notes
0x5E	Server	Chain data	JSON array of JWT Data	Contains the display name, UUID and XUID
		Skin data	JWT Data

Automation Client Connect

Sent by the server to make the client connect to a websocket server. This websocket server has the ability to execute commands on the behalf of the client and it canlisten for certain events fired by the client.

Packet ID	Bound To	Field Name	Field Type	Notes
0x5F	Client	Address	String

Set Last Hurt By

Sent by the server to let the client know what entity type it was last hurt by. At this moment, the packet is useless and should not be used. There is no behaviour that depends on if this packet is sent or not.

Packet ID	Bound To	Field Name	Field Type	Notes
0x60	Client	Entity Type Id	VarInt

Book Edit

Sent by the client when it edits a book. It is sent each time a modification was made and the player stops its typing 'session', rather than simply after closing the book.

Packet ID	Bound To	Field Name	Field Type	Notes
0x61	Client

NPC Request

Sent by the client when it interacts with an NPC.

Packet ID	Bound To	Field Name	Field Type	Notes
0x62	Server & Client	Entity ID	VarLong	The entity must be in the render distance of the client
		Action type	ActionTypes
		Dialogue	String
		Screen name	String	The usage for this field is unknown. Vanilla server sends an empty field
		NPC name	String
		Action JSON	JSON

Photo Transfer

Sent by the server to transfer a photo (image) file to the client. It is typically used to transfer photos so that the client can display it in a portfolio in Education Edition.

While previously usable in the base game, the displaying of photos in books was disabled and the packet has little use anymore.

The packet is specifically for Education Edition. It has no use in the base game.

Packet ID	Bound To	Field Name	Field Type	Notes
0x63	Server	File name	String
		Image data	String
		Unknown2	String

Model Form Request

Sent by the server to make the client open a form.

Packet ID	Bound To	Field Name	Field Type	Notes
0x64	Client	Form Id	VarInt
		Form Data	String

Model Form Response

Packet ID	Bound To	Field Name	Field Type	Notes
0x65	Server	Form Id	VarInt
		Form Data	String

Server Settings Request

Packet ID	Bound To	Field Name	Field Type	Notes
0x66	Server

Server Settings Response

Packet ID	Bound To	Field Name	Field Type	Notes
0x67	Client	Form Id	VarLong
		Form Data	String

Show Profile

Sent by the server to show the Xbox Live profile of one player to another.

Packet ID	Bound To	Field Name	Field Type	Notes
0x68	Client	Xuid	String	If the XUID is invalid, the client ignores the packet

Set Default Game Type

Sent by the client when it toggles the default game type in the settings UI, and is sent by the server when it actually changes the default game type, resulting in the toggle being changed in the settings UI.

Packet ID	Bound To	Field Name	Field Type	Notes
0x69	Client	Game mode	VarInt

Remove Objective

Packet ID	Bound To	Field Name	Field Type	Notes
0x6A	Client	Objective Id	String

Set Display Objective

Packet ID	Bound To	Field Name	Field Type	Notes
0x6B	Client	Display Slot	String
		Objective Id	String
		Display Name	String
		Criteria	String
		Sort Order	SignedVarInt

Set Score

Sent by the server to send the contents of a scoreboard to the player. It may be used to either add, remove or edit entries on the scoreboard.

Packet ID	Bound To	Field Name	Field Type	Notes
0x6C	Client	Action	byte	0 (Add), 1 (Remove)
		Entries	ScoreEntries

Lab Table

Sent by the client to let the server know it started a chemical reaction in Education Edition, and is sent by the server to allow other clients to show the effects.

This packet is only functional if Education features are enabled.

Packet ID	Bound To	Field Name	Field Type	Notes
0x6D	Server & Client	Unknown Byte 0	Byte
		Block Entity Position X	VarInt
		Block Entity Position Y	VarInt
		Block Entity Position Z	VarInt
		Reaction Type	Byte

Update Block Synced

Sent by the server to synchronize the falling of a falling block entity with the transitioning back and forth from and to a solid block. It is used to prevent the entity from flickering, and is used in places such as the pushing of blocks with pistons.

Packet ID	Bound To	Field Name	Field Type	Notes
0x6E	Client	Coordinates	BlockCoordinates
		Block Runtime ID	VarInt
		Block Priority	VarInt
		Data Layer ID	VarInt
		Runtime Entity ID	VarLong
		Block Synced Type	VarLong	0 - None, 1 - Create, 2 - Destroy

Move Entity Delta

Sent by the server to move an entity by a given delta. The packet is specifically optimized to save as much space as possible, by only writing non-zero fields.

Packet ID	Bound To	Field Name	Field Type	Notes
0x6F	Client	Runtime Entity ID	VarLong
		Flags	Unsigned Short

Flags

Field	Bit
HAS_X	0x01
HAS_Y	0x02
HAS_Z	0x4
HAS_PITCH	0x8
HAS_YAW	0x10
HAS_ROLL	0x20

Set Scoreboard Identity

Sent by the server to change the identity type of one of the entries on a scoreboard. This is used to change, for example, an entry pointing to a player, to a fake player when it leaves the server, and to change it back to a real player when it joins again.

In non-vanilla situations, this packet is quite useless.

Packet ID	Bound To	Field Name	Field Type	Notes
0x70	Client	Action	byte	0 (Add), 1 (Remove)
		Entries	ScoreboardIdentityEntries

Set Local Player As Initialized

Sent by the client in response to a |Play Status with the status Player Spawn (3). The packet marks the moment at which the client is fully initialized and can receive any packet without discarding it.

Packet ID	Bound To	Field Name	Field Type	Notes
0x71	Server	Runtime Entity Id	VarLong

Update Soft Enum

Sent by the server to update a soft enum, also known as a dynamic enum, previous sent in the Available Commands packet. It is sent whenever the enum should get new options or when some of its options should be removed.

Packet ID	Bound To	Field Name	Field Type	Notes
0x72	Client
		Enum Data	EnumData	TODO
		Action	byte	0 (Add), 1 (Remove), 2 (Update)

Network Stack Latency

Sent by the server (and the client, on development builds) to measure the latency over the entire Minecraft stack, rather than the RakNet latency.

It has over usages too, such as the ability to be used as some kind of acknowledgement packet, to know when the client has received a certain other packet.

Packet ID	Bound To	Field Name	Field Type	Notes
0x73	Server & Client	Timestamp	Unsigned Long
		Send Back	Boolean

Script Custom Event

Sent by both the client and server. It is a way to let scripts communicate with the server, so that the client can let the server know it triggered an event, or the other way around.

Packet ID	Bound To	Field Name	Field Type	Notes
0x75	Server & Client	Event Name	String
		Data	String	Typically a JSON encoded string that the script is able to encode and decode too

Spawn Particle Effect

Sent by the server to spawn a particle effect client-side. Unlike other packets that result in the appearing of particles, this packet can show particles that are not hardcoded in the client. They can be added and changed through behavior packs to implement custom particles.

Packet ID	Bound To	Field Name	Field Type	Notes
0x76	Client	Dimension Id	Byte
		Unique Entity Id	SignedVarLong
		Position	Vector3
		Identifier	String	The name of the particle
		molangVariablesJson	String	JSON data that sets initial Molang variables for particles, which the client can access. Must be set to empty if not used. See below for an example.

[
  {
    "name": "variable.color", // top level variable
    "value": {
      "type": "member_array", // type; use float for values and member_array for sub-variables
      "value": [
        {
          "name": ".r",
          "value": {
            "type": "float",
            "value": 1
          }
        },
        {
          "name": ".g",
          "value": {
            "type": "float",
            "value": 0
          }
        },
        {
          "name": ".b",
          "value": {
            "type": "float",
            "value": 0
          }
        },
        {
          "name": ".a",
          "value": {
            "type": "float",
            "value": 1
          }
        }
      ]
    }
  }
]

Available Entity Identifiers

Sent by the server at the start of the game to let the client know all entities that are on the server.

Packet ID	Bound To	Field Name	Field Type	Notes
0x77	Client	NamedTag	NBT

Level Sound Event (2)

Packet ID	Bound To	Field Name	Field Type	Notes
0x78	Server & Client	Sound ID	Byte
		Position	Vector3
		Block Id	SignedVarInt
		Entity Type	String
		Is baby mob	Boolean
		Is global	Boolean

Network Chunk Publisher Update

Sent by the server to change the point around which chunks are and remain loaded.

This is useful for minigame servers, where only one area is ever loaded, in which case the Network Chunk Publisher packet can be sent in the middle of it, so that no chunks ever need to be additionally sent during the course of the game.

In reality, the packet is not extraordinarily useful, and most servers just sent it constantly at the position of the player.

If the packet is not sent at all, no chunk will be shown to the player, regardless of where they are sent.

Packet ID	Bound To	Field Name	Field Type	Notes
0x79	Client	Coordinates	BlockCoordinates
		Radius	VarInt

Biome Definition List

Sent by the server to let the client know all biomes that are available and implemented on the server side.

Packet ID	Bound To	Field Name	Field Type	Notes
0x7A	Client	NamedTag	NBT

Level Sound Event (3)

Packet ID	Bound To	Field Name	Field Type	Notes
0x7B	Server & Client	Sound ID	VarInt
		Position	Vector3
		Block Id	SignedVarInt
		Entity Type	String
		Is baby mob	Boolean
		Is global	Boolean

Level Event Generic

Sent by the server to send a 'generic' level event to the client. This packet sends an NBT serialized object and may for that reason be used for any event holding additional data.

Packet ID	Bound To	Field Name	Field Type	Notes
0x7C	Client

Lectern Update

Sent by the client to update the server on which page was opened in a book on a lectern, or if the book should be removed from it.

Packet ID	Bound To	Field Name	Field Type	Notes
0x7D	Client	Page	Byte
		Total Pages	Byte
		Block Position	Position
		Dropping Book	Boolean

Video Stream Connect

Packet ID	Bound To	Field Name	Field Type	Notes
0x7E	Client	Server URI	String
		Frame Send Frequency	Float
		Action	Byte
		Resolution X	Int
		Resolution Y	Int

Client Cache Status

Sent by the client at the start of the game. It is sent to let the server know if it supports the client-side blob cache. Clients such as Nintendo Switch do not support the cache, and attempting to use it anyway will fail.

Packet ID	Bound To	Field Name	Field Type	Notes
0x81	Server & Client	Supported	Boolean

On Screen Texture Animation

Sent by the server to show a certain animation on the screen of the player. The packet is used, for example, for when a raid is triggered and a raid a defeated.

Packet ID	Bound To	Field Name	Field Type	Notes
0x82	Client	Animation Type	Int

Map Create Locked Copy

Sent by the server to create a locked copy of a map into another map. It is used in the cartography table to create a map that is locked and cannot be modified.

Packet ID	Bound To	Field Name	Field Type	Notes
0x83	Client	Original Map Id	VarLong
		New Map Id	VarLong

Structure Template Data Request

Sent by the client to request data of a structure.

Packet ID	Bound To	Field Name	Field Type	Notes
0x84	Client	Structure Name	String
		Position	Block Position
		Settings	Structure Settings	(see Structure Block Update -> Structure Editor Data -> Settings)
		Reqiested Operation	byte	None = 0, Export From Save Mode = 1, Export From Load Mode = 2, Query Saved Structure = 3

Structure Template Data Response

Sent by the server to send data of a structure to the client in response to a Structure Template Data Export Request packet.

Packet ID	Bound To	Field Name	Field Type	Notes
0x85	Client	Structure Name	String	This is the name used to export the structure to a file
		Requested structure exists?	if exists	Failure	Boolean
				Response Type	byte
			if not exists	Success	Boolean
				NBT	Compound Tag
				Response Type	byte

Update Block Properties

Sent by the server to update the available block properties.

Packet ID	Bound To	Field Name	Field Type	Notes
0x86	Client	NamedTag	NBT

Client Cache Blob Status

Sent by the client to let the server know what blobs it already has, in an ACK type system.

Packet ID	Bound To	Field Name	Field Type	Notes
0x87	Client

Client Cache Miss Response

Sent by the server in response to a Client Cache Blob Status and contains the blob data of all blobs that the client acknowledged not to have yet.

Packet ID	Bound To	Field Name	Field Type	Notes
0x88	Client	Blobs

Network Settings

Sent by the server to update a variety of network settings. These settings modify the way packets are sent over the network stack.

Packet ID	Bound To	Field Name	Field Type	Notes
0x8F	Client	Compression threshold	Short	The maximum size of a packet this is compressed when sent. If the size of the packet is under this value, it is not compressed. When set to 0, all packets will be uncompressed.
		Compression method	Short	0: ZLib 1: Snappy
		Client throttle enabled	Boolean
		Client throttle threshold	Byte
		Client throttle scalar	Float

Player Auth Input

Sent by the client to allow for server authoratative movement. It is used to synchronize the player input with the position server-side.

The client sends this packet when the 'Server Authoritive Movement' field in the Start Game packet is set to true, instead of the Move Player packet. The client will send this packet once every tick.

Packet ID	Bound To	Field Name	Field Type	Notes
0x90	Client

Creative Content

Sent by the server to set the creative inventory's content for a player.

Introduced in 1.16, this packet replaces the previous method of sending an Inventory Content packet with the creative inventory window ID. This packet must be sent from a server after the StartGamePacket since 1.16.100. Otherwise, the client will crash!

Packet ID	Bound To	Field Name	Field Type	Notes
0x91	Client

Player Enchant Options

Sent by the server to update the enchantment options displayed when the user opens the enchantment table and puts an item in.

This packet was added in 1.16 and allows the server to decide on the enchantment that can be selected by a player. The player should be sent once for every slot update of the enchantment table. The vanilla server sends an empty packet when the player first opens the enchantment table (air is is present in the enchantment table slot) and sends a packet with actual enchantments in it when items are put in that can have enchantments.

Packet ID	Bound To	Field Name	Field Type	Notes
0x92	Client

Item Stack Request

Sent by the client to change item stacks in an inventory.

Added in 1.16, is essentially a replacement of the Inventory Transaction packet for inventory specific actions, such as moving items around or crafting.

The Inventory Transaction packet is still used for actions such as placing blocks and interacting with entities.

Packet ID	Bound To	Field Name	Field Type	Notes
0x93	Client

Item Stack Response

Sent by the server in response to an Item Stack Request packet from the client.

This packet is used to either approve or reject ItemStackRequests from the client. If a request is approved, the client will simply continue as normal. If rejected, the client will undo the actions so that the inventory should be in sync with the server again.

Packet ID	Bound To	Field Name	Field Type	Notes
0x94	Client

Player Armor Damage

Sent by the server to damage the armor of a player. It is a very efficient packet, but generally it's much easier to just send a slot update for the damaged armor.

Packet ID	Bound To	Field Name	Field Type	Notes
0x95	Client

Code Builder

Sent by the server to open the URL to a Code Builder (websocket) server.

This packet is only used by Education Edition and have no affect on the base game.

Packet ID	Bound To	Field Name	Field Type	Notes
0x96	Client

Update Player Game Type

Sent by the server to change the game mode of a player. It is functionally identical to the Set Player Game Type packet.

Packet ID	Bound To	Field Name	Field Type	Notes
0x97	Client

Emote List

Sent by the client every time it joins the server and when it equips new emotes. It may be used by the server to find out which emotes the client has available. If the player has no emotes equipped, this packet is not sent.

Under certain circumstances, this packet is also sent from the server to the client, but more testing is needed for this.

Packet ID	Bound To	Field Name	Field Type	Notes
0x98	Client

Position Tracking DB Server Broadcast

Sent by the server in response to the Position Tracking DB Client Request packet. Thus packet is, as of 1.16, currently only for lodestones. The server maintains a database with tracking IDS and their position and dimension. The client will request these tracking IDs, (NBT tag set on the lodestone compass with the tracking ID?) and the server will respond with the status of those tracking IDs.

What is actually done with the data sent depends on what the client chooses to do with it. For the lodestone compass, it is used to make the compass point towards lodestones and to make it spin if the lodestone at a position is no longer there.

Packet ID	Bound To	Field Name	Field Type	Notes
0x99	Client

Position Tracking DB Client Request

Sent by the client to request the position and dimension of a 'tracking ID'. These IDs are tracked in a database by the server. In 1.16, this is used for lodestones.

The client will sent this request to find the position a lodestone compass needs to point to. If found, it will point to the lodestone. If not, it will start spinning around.

A Position Tracking DB Server Broadcast packet should be sent in response to this packet.

Packet ID	Bound To	Field Name	Field Type	Notes
0x9a	Client

Debug Info

Sent by the server. It does not seem to do anything when sent to the normal client in 1.16;

Packet ID	Bound To	Field Name	Field Type	Notes
0x9b	Client

Packet Violation Warning

Sent by the client when it receives an invalid packet from the server. It holds some information on the error that occured.

Packet ID	Bound To	Field Name	Field Type	Notes
0x9c	Client

Animate Entity

Indicates that the client should play the specified animation on the selected entities. This is the packet used for the /playanimation command found on vanilla Bedrock (see Minecraft Wiki).

Packet ID	Bound To	Field Name	Field Type		Notes
0x9E	Client	Animation	String		The animation to play on the specified entities. Produces no warnings if the animation is invalid for this entity.
		Next State	String		The entity state to move to when the animation has finished playing. Defaults to default on a normal Bedrock server.
		Stop Expression	String		A Molang expression of when to stop the animation. Defaults to query.any_animation_finished on a normal Bedrock server.
		Controller	String		Specifies the animation controller to use for this animation. Defaults to __runtime_controller on a normal Bedrock server.
		Blend Out Time	Float LE		How long to take to move from the specified animation to the next animation. Defaults to 0 on a normal Bedrock server.
		Entity Array Size	Unsigned VarInt		The size of the following array
		Runtime Entity ID	Array	Unsigned VarLong	A runtime entity ID to perform this animation on

Item Component

Always sent by a vanilla Bedrock server after the StartGamePacket. Sent not empty for items with data driven information.

In order for the information in this packet to be used, the experiment data titled data_driven_items must be set to true in the ResourcePackStackPacket (as of 1.16.100), and the item entry in StartGamePacket must have its component toggle set to true.

Packet ID	Bound To	Field Name	Field Type	Notes
0xA2	Client	Items	ComponentItemData[]	A list of all item components.

ComponentItemData takes in a String identifier and an NBT CompoundTag containing item data. Valid, minimal NBT data looks like the following (Any comments are preceded with //):

{
  "components": {
    "item_properties": {
      "allow_off_hand": 1b,
      "hand_equipped": 1b,
      "max_stack_size": 1i
    },
    "minecraft:icon": {
      "texture": "example_item" // Required even with a resource pack, or else the client complains about icon texture
    }
  },
  "id": 1020i, // The runtime ID of the item
  "name": "wikivg:example_item"
}

A list of all known valid item properties (and descriptions, if added):

Property name	Property type	Property description
allow_off_hand	boolean	If the item is permitted in the offhand inventory slot.
animates_in_toolbar	boolean
can_destroy_in_creative	boolean	the item can box the blocks in creative
creative_category	integer	1 is the construction, 2 is the nature, 3 is the equipment, 4 is the items, the default value is 1
creative_group	string	TODO
damage	integer	Shows the number of damage attacks
enchantable_slot	string
enchantable_value	integer
explodable	boolean
foil	boolean	The maximum amount of this item that can be in an inventory slot.
frame_count	integer
hand_equipped	boolean	If the item should be visually held like a tool.
ignores_permissions	boolean
liquid_clipped	boolean	Gives the possibility to click on a liquid
max_stack_size	integer	The maximum amount of this item that can be in an inventory slot.
mining_speed	float
mirrored_art	boolean
requires_interact	boolean
should_despawn	boolean
stacked_by_data	boolean
use_animation	integer
use_duration	integer

Other item components can be found here: https://bedrock.dev/docs/stable/Item#Item%20Components (Add these in the same format as minecraft:icon shown above). Also see: https://wiki.bedrock.dev/concepts/items

Filter Text

Since 1.16.200, this packet is sent for to all anvil and cartography table rename inputs (I.E. typing a single character will send this packet). The client expects a response back, or else it will assume that the item cannot be renamed (which can be used to block renaming items).

Packet ID	Bound To	Field Name	Field Type	Notes
0xA3	Both	Text	String	The string to be checked (if serverbound), or checked (if clientbound). If this packet is clientbound, then the client will use this text for the final output of the item - the input box itself will not be modified, but the item in the output box will show this 'filtered' text.
		From Server	Boolean	True if sent from the server; otherwise false.

Request Network Settings

Since v554, this is the first packet sent by the client.

Packet ID	Bound To	Field Name	Field Type	Notes
0xC1	Server	Protocol version	Integer (Big Endian)	The client's protocol version.