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Mojang

Mojang Session API

Login-handshake session verification

Documentation Provider Profile APIs.io OpenAPI GitHub

Mojang Session API is one of 14 APIs that Mojang publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Session. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 2 operations across 2 paths, and defines 4 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against a single base URL, https://sessionserver.mojang.com.

2 operations 2 paths 4 schemas 1 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://api.mojang.com
Authentication
HTTP Bearer
Contact
Mojang Studios
License
Mojang Brand and Asset Usage Guidelines
Resource Areas
1

Authentication & Security 1

Mojang Session API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (JWT) (bearerAuth).

  • bearerAuth — Minecraft access token (used in /join request body, not as a header).

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 1 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Session 2

Login-handshake session verification

GET
/session/minecraft/hasJoined
Has Joined Verification (Server-Side)
hasJoined 4 params → 200204429
POST
/session/minecraft/join
Join Session (Client-Side)
joinSession body → 204400403429

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are SessionProfile (4 properties), SessionProperty (3 properties), JoinRequest (3 properties), Error (3 properties). Each schema is shown below with its type and property counts.

Error
object
Standard Mojang error envelope.
3 properties
JoinRequest
object
Body of the client-side /join call.
3 properties 3 required
SessionProperty
object
A single signed session-profile property (e.g. textures).
3 properties 2 required
SessionProfile
object
A signed session profile with textures and metadata properties.
4 properties 3 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

mojang-session-api-openapi.yml Raw ↑

Other APIs Mojang publishes across the network.

Mojang Attributes API
AE Profile APIs.io
Mojang Authentication API
AE Profile APIs.io
Mojang Blocklist API
AE Profile APIs.io
Mojang Capes API
AE Profile APIs.io
Mojang Entitlements API
AE Profile APIs.io
Mojang Friends API
AE Profile APIs.io
Mojang Identity API
AE Profile APIs.io
Mojang Keys API
AE Profile APIs.io
Mojang Presence API
AE Profile APIs.io
Mojang Profile API
AE Profile APIs.io
Mojang Server API
AE Profile APIs.io
Mojang Skins API
AE Profile APIs.io
#Session
← Back to M APIs
API Details
ID
mojang:mojang-session-api
Base URL
https://api.mojang.com
Docs
https://minecraft.wiki/w/Mojang_API
Provider
Mojang
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