Mojang API

Username -> UUID

 https://api.mojang.com/users/profiles/minecraft/<username>

This will turn the player's username and uuid

Response

{
  "id": "7125ba8b1c864508b92bb5c042ccfe2b",
  "name": "KrisJelbring"
}

Username -> UUID at time

 https://api.mojang.com/users/profiles/minecraft/<username>?at=<timestamp>

This will turn the player's username and uuid at the timestamp provided

Response

{
  "id": "7125ba8b1c864508b92bb5c042ccfe2b",
  "name": "KrisJelbring"
}

UUID -> All current/previous names

  https://api.mojang.com/user/profiles/<uuid>/names

Response

[
  "KrisJelbring"
]

Player Information

 https://sessionserver.mojang.com/session/minecraft/profile/<uuid>

This will return the player's username plus any additional information about them (e.g. skins). Example: https://sessionserver.mojang.com/session/minecraft/profile/4566e69fc90748ee8d71d7ba5aa00d20

Response

{
    "id":"profile identifier",
    "name":"player name",
    "properties":[ 
	{
	    "name":"dunno",
	    "value":"base64 string",
	    "signature":"base64 string; signed data using Yggdrasil's private key"
	}
    ]
}

"value" base64 string decoded:

{
    "timestamp":"some numbers",
    "profileId":"profile identifier",
    "profileName":"player name",
    "isPublic":"true or false",
    "textures":{
	"SKIN":{
	    "url":"player skin URL"
        }
        "CAPE":{
	    "url":"player cape URL"
        }
    }
}

Players profiles by names

 https://api.mojang.com/profiles/minecraft

Where 'minecraft' - agent name

This will return players profiles.

Payload

We need to send array of profiles nicknames. For example:

[
    "maksimkurb",
    "nonExistsPlayer" //Test for non-exists player
]

Response

[
    {
        "id": "0d252b7218b648bfb86c2ae476954d32",    //Profile uuid
        "name": "maksimkurb",                        //Profile nickname
        "legacy": true,                              //Profile not migrated to mojang.com?  (Only appears, when true)
        "demo": true                                 //Game wasn't bought                   (Only appears, when true)
    }
    // How we can see, this url return only information about real (exists) profiles.
]