openapi: 3.0.3
info:
  title: Synapse Admin Federation Server API
  description: Administrative REST API for the Synapse Matrix homeserver. Provides server administrators with endpoints to manage users, rooms, media, federation, registration tokens, background updates, event reports, and server statistics. Authentication requires an access token belonging to a server admin account, passed as a Bearer token. Admin API endpoints should be protected behind a reverse proxy.
  version: '1.0'
  contact:
    name: Element (Synapse maintainers)
    url: https://github.com/element-hq/synapse
  license:
    name: AGPL-3.0
    url: https://github.com/element-hq/synapse/blob/develop/LICENSE
servers:
- url: https://matrix.example.com/_synapse/admin
  description: Synapse Admin API base URL
security:
- BearerAuth: []
tags:
- name: Server
  description: Server information and background updates
paths:
  /v1/server_version:
    get:
      summary: Get Server Version
      description: Get the current Synapse server version
      operationId: getServerVersion
      tags:
      - Server
      responses:
        '200':
          description: Server version information
          content:
            application/json:
              schema:
                type: object
                properties:
                  server_version:
                    type: string
                    description: Synapse version string
                  python_version:
                    type: string
                    description: Python version in use
  /v1/background_updates/enabled:
    get:
      summary: Get Background Updates Status
      description: Check whether background database updates are enabled
      operationId: getBackgroundUpdatesEnabled
      tags:
      - Server
      responses:
        '200':
          description: Background updates status
          content:
            application/json:
              schema:
                type: object
                properties:
                  enabled:
                    type: boolean
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
components:
  responses:
    Unauthorized:
      description: Unauthorized - missing or invalid access token
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Forbidden:
      description: Forbidden - requires server admin access
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  schemas:
    Error:
      type: object
      properties:
        errcode:
          type: string
          description: Matrix error code (e.g. M_FORBIDDEN, M_NOT_FOUND)
        error:
          type: string
          description: Human-readable error description
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Admin access token obtained from the Synapse homeserver