> ## Documentation Index
> Fetch the complete documentation index at: https://www.posted.cc/llms.txt
> Use this file to discover all available pages before exploring further.

# List providers

> Read enabled providers and their content limits.

Read access: a read-enabled personal or team REST API key, or a signed-in user. OAuth clients use the corresponding MCP tool through /mcp.

Read enabled providers and their content limits.

Only fully configured providers appear. This returns Posted's enforced capabilities, not an assurance that a provider application has production approval.

MCP clients can use [`list_providers`](/mcp-reference/list_providers) for this operation.

[Request conventions](/api-reference/overview) · [API keys](/api-keys) · [MCP connections](/mcp-connections)


## OpenAPI

````yaml api-reference/openapi.json GET /api/providers
openapi: 3.1.0
info:
  title: Posted HTTP API
  version: 0.2.0
  description: >-
    All registered application, account, OAuth, MCP transport and health
    endpoints. Publishing and draft request schemas come from the shared runtime
    validators. Replace the example server with your installation. Documentation
    uses simple request examples and does not execute live publishing requests.
servers:
  - url: https://posted-api.example.com
security: []
paths:
  /api/providers:
    get:
      tags:
        - Social connections
      summary: List providers
      description: >-
        Read enabled providers and their content limits.


        Only fully configured providers appear. This returns Posted's enforced
        capabilities, not an assurance that a provider application has
        production approval.


        Read access: a read-enabled personal or team REST API key, or a
        signed-in user. OAuth clients use the corresponding MCP tool through
        /mcp.
      operationId: get_api_providers
      responses:
        '200':
          description: >-
            Successful response. Examples are illustrative; field values vary by
            record.
          content:
            application/json:
              schema:
                type: object
                properties:
                  providers:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: string
                        name:
                          type: string
                        maxCharacters:
                          type: integer
                        maxImages:
                          type: integer
                        maxVideos:
                          type: integer
                        maxVideoDurationSeconds:
                          type: integer
                        maxImageBytes:
                          type: integer
                        maxImageDimension:
                          type: integer
                      additionalProperties: true
                additionalProperties: true
              example:
                providers:
                  - id: bluesky
                    name: Bluesky
                    maxCharacters: 300
                    maxImages: 4
                    maxVideos: 1
                    maxVideoDurationSeconds: 180
                    maxImageBytes: 2000000
                    maxImageDimension: 4000
        default:
          description: >-
            Request failure. Inspect code, message and requestId; respect
            Retry-After on HTTP 429.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      security:
        - bearerAuth: []
        - sessionCookie: []
components:
  schemas:
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - code
            - message
            - requestId
          properties:
            code:
              type: string
            message:
              type: string
            requestId:
              type: string
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Personal or team Posted REST API key
    sessionCookie:
      type: apiKey
      in: cookie
      name: posted_session
      description: >-
        Signed-in human browser session; mutation requests also need the exact
        UI Origin

````

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