aid: matrix
name: Matrix
description: >-
  Matrix is an open standard and decentralized protocol for real-time
  communication, providing federated messaging, voice, video, and IoT
  signalling across independently operated homeservers. The Matrix
  specification defines several REST APIs (Client-Server, Server-Server,
  Application Service, Identity Service, and Push Gateway) that interoperate
  across the federation. Authentication is typically performed via Bearer
  access tokens, with newer flows using OAuth 2.0.
type: Index
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Messaging
  - Decentralized
  - Federated
  - Open Standard
  - Real-Time Communication
  - VoIP
url: >-
  https://raw.githubusercontent.com/api-evangelist/matrix/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.19'
apis:
  - aid: matrix:client-server-api
    name: Matrix Client-Server API
    description: >-
      REST API used by Matrix clients to communicate with a homeserver,
      covering login, room creation and management, message sending, sync,
      device management, end-to-end encryption, and push notifications.
      Authentication uses Bearer access tokens issued by the homeserver, with
      OAuth 2.0 supported in newer versions.
    humanURL: https://spec.matrix.org/latest/client-server-api/
    baseURL: https://matrix.org/_matrix/client
    tags:
      - Client-Server
      - Messaging
      - Rooms
      - Sync
      - Encryption
    properties:
      - type: Documentation
        url: https://spec.matrix.org/latest/client-server-api/
      - type: OpenAPI Source
        url: https://github.com/matrix-org/matrix-spec/tree/main/data/api/client-server
  - aid: matrix:server-server-api
    name: Matrix Server-Server (Federation) API
    description: >-
      Federation API that lets Matrix homeservers exchange events, presence,
      and key information with one another over signed JSON requests.
    humanURL: https://spec.matrix.org/latest/server-server-api/
    baseURL: https://matrix.org/_matrix/federation
    tags:
      - Federation
      - Server-Server
      - Decentralized
    properties:
      - type: Documentation
        url: https://spec.matrix.org/latest/server-server-api/
      - type: OpenAPI Source
        url: https://github.com/matrix-org/matrix-spec/tree/main/data/api/server-server
  - aid: matrix:application-service-api
    name: Matrix Application Service API
    description: >-
      API used by application services (bridges, bots) to integrate with a
      homeserver, claim namespaces, and exchange events.
    humanURL: https://spec.matrix.org/latest/application-service-api/
    baseURL: https://matrix.org/_matrix/app
    tags:
      - Bridges
      - Bots
      - Integrations
    properties:
      - type: Documentation
        url: https://spec.matrix.org/latest/application-service-api/
      - type: OpenAPI Source
        url: https://github.com/matrix-org/matrix-spec/tree/main/data/api/application-service
  - aid: matrix:identity-service-api
    name: Matrix Identity Service API
    description: >-
      API for looking up Matrix user IDs from third-party identifiers such as
      email addresses and phone numbers via federated identity servers.
    humanURL: https://spec.matrix.org/latest/identity-service-api/
    baseURL: https://matrix.org/_matrix/identity
    tags:
      - Identity
      - Lookup
      - 3PID
    properties:
      - type: Documentation
        url: https://spec.matrix.org/latest/identity-service-api/
      - type: OpenAPI Source
        url: https://github.com/matrix-org/matrix-spec/tree/main/data/api/identity
  - aid: matrix:push-gateway-api
    name: Matrix Push Gateway API
    description: >-
      Push Gateway API homeservers use to deliver notifications to mobile
      push services on behalf of Matrix clients.
    humanURL: https://spec.matrix.org/latest/push-gateway-api/
    baseURL: https://matrix.org/_matrix/push
    tags:
      - Push Notifications
      - Mobile
    properties:
      - type: Documentation
        url: https://spec.matrix.org/latest/push-gateway-api/
      - type: OpenAPI Source
        url: https://github.com/matrix-org/matrix-spec/tree/main/data/api/push-gateway

common:
  - type: Website
    url: https://matrix.org
  - type: Documentation
    url: https://spec.matrix.org/latest/
  - type: Specification Repository
    url: https://github.com/matrix-org/matrix-spec
  - type: GitHub Organization
    url: https://github.com/matrix-org
  - type: Sign Up
    url: https://matrix.org/try-matrix/
  - type: Support
    url: https://matrix.org/support/

maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com