Mojang · Schema

JoinRequest

Body of the client-side /join call.

Games And ComicsMinecraftGamingIdentityPlayer ProfilesSessionPublic APIs

Properties

Name Type Description
accessToken string Minecraft Bearer access token for the player.
selectedProfile string Player UUID without hyphens.
serverId string SHA-1 hash computed by the client during the handshake.
View JSON Schema on GitHub

JSON Schema

session-server-join-request-schema.json Raw ↑ 
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/mojang/refs/heads/main/json-schema/session-server-join-request-schema.json",
  "title": "JoinRequest",
  "description": "Body of the client-side /join call.",
  "type": "object",
  "properties": {
    "accessToken": {
      "type": "string",
      "description": "Minecraft Bearer access token for the player.",
      "example": "eyJraWQiOiJhYmMxMjMi..."
    },
    "selectedProfile": {
      "type": "string",
      "description": "Player UUID without hyphens.",
      "example": "853c80ef3c3749fdaa49938b674adae6"
    },
    "serverId": {
      "type": "string",
      "description": "SHA-1 hash computed by the client during the handshake.",
      "example": "e6e0fce6f3a8b7afa3b9eb0a0d3a8e9a4e8c8e1b"
    }
  },
  "required": [
    "accessToken",
    "selectedProfile",
    "serverId"
  ]
}

Work with this as data

Every JSON Schema here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for schemas

4 MCP tools reach this
  • find_json_schemasBrowse and filter every JSON Schema in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This JSON Schema 
curl "https://apis.io/api/v1/json-schemas/session-server-join-request"
All schemas 
curl "https://apis.io/api/v1/json-schemas?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.