openapi: 3.0.3
info:
  title: Transistor Account Episodes API
  description: The Transistor API is a public REST API for the Transistor podcast hosting and analytics platform. It follows the JSON:API specification, accepts JSON or form-encoded request bodies, and returns JSON:API resource objects. It supports sparse fieldsets and included related resources. Authentication is via an x-api-key header carrying an API key generated in the Transistor dashboard Account area. The API covers shows, episodes, download analytics, private podcast subscribers, and event webhooks. Requests are rate-limited to 10 requests per 10 seconds; exceeding the limit returns HTTP 429 and blocks access for 10 seconds.
  version: '1.0'
  contact:
    name: Transistor
    url: https://transistor.fm
  termsOfService: https://transistor.fm/legal/
servers:
- url: https://api.transistor.fm/v1
  description: Transistor API v1
security:
- apiKeyAuth: []
tags:
- name: Episodes
  description: Podcast episodes, drafts, uploads, and publishing.
paths:
  /episodes:
    get:
      operationId: listEpisodes
      tags:
      - Episodes
      summary: List episodes
      description: Returns a paginated list of episodes. Filterable by show, status, and a full-text query.
      parameters:
      - name: show_id
        in: query
        description: Filter episodes belonging to a specific show.
        schema:
          type: string
      - name: status
        in: query
        description: Filter by episode status (for example published, scheduled, or draft).
        schema:
          type: string
      - name: query
        in: query
        description: Full-text search across episodes.
        schema:
          type: string
      - $ref: '#/components/parameters/PageNumber'
      - $ref: '#/components/parameters/PageSize'
      responses:
        '200':
          description: A paginated list of episodes.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonApiResourceList'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
    post:
      operationId: createEpisode
      tags:
      - Episodes
      summary: Create an episode
      description: Creates a new draft episode.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WriteBody'
      responses:
        '201':
          description: The created episode.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonApiResource'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '422':
          $ref: '#/components/responses/UnprocessableEntity'
        '429':
          $ref: '#/components/responses/RateLimited'
  /episodes/authorize_upload:
    get:
      operationId: authorizeEpisodeUpload
      tags:
      - Episodes
      summary: Authorize an audio upload
      description: Returns a pre-signed upload URL and an audio_url. Upload your audio file with an HTTP PUT to the returned upload_url, then set the returned audio_url on the episode.
      parameters:
      - name: filename
        in: query
        required: true
        description: The name of the audio file to be uploaded.
        schema:
          type: string
      responses:
        '200':
          description: Upload authorization data.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonApiResource'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
  /episodes/{id}:
    parameters:
    - $ref: '#/components/parameters/ResourceId'
    get:
      operationId: getEpisode
      tags:
      - Episodes
      summary: Retrieve an episode
      description: Returns a single episode by ID.
      responses:
        '200':
          description: The requested episode.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonApiResource'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
    patch:
      operationId: updateEpisode
      tags:
      - Episodes
      summary: Update an episode
      description: Updates an existing episode.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/WriteBody'
      responses:
        '200':
          description: The updated episode.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonApiResource'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
  /episodes/{id}/publish:
    parameters:
    - $ref: '#/components/parameters/ResourceId'
    patch:
      operationId: publishEpisode
      tags:
      - Episodes
      summary: Publish, schedule, or unpublish an episode
      description: Changes an episode's publication status - publish immediately, schedule for a future date, or unpublish - by setting the status field.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                episode:
                  type: object
                  properties:
                    status:
                      type: string
                      description: The target status, for example published, scheduled, or draft.
                    published_at:
                      type: string
                      format: date-time
                      description: The scheduled publish time when status is scheduled.
      responses:
        '200':
          description: The episode with its updated publication status.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/JsonApiResource'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '429':
          $ref: '#/components/responses/RateLimited'
components:
  responses:
    RateLimited:
      description: Too many requests. The API allows 10 requests per 10 seconds; exceeding this blocks access for 10 seconds.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Errors'
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Errors'
    NotFound:
      description: The requested resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Errors'
    UnprocessableEntity:
      description: The request was well-formed but the parameters were invalid.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Errors'
  schemas:
    JsonApiResource:
      type: object
      description: A JSON:API single-resource document.
      properties:
        data:
          $ref: '#/components/schemas/ResourceObject'
        included:
          type: array
          items:
            $ref: '#/components/schemas/ResourceObject'
    Errors:
      type: object
      properties:
        errors:
          type: array
          items:
            type: object
            properties:
              status:
                type: string
              title:
                type: string
              detail:
                type: string
    ResourceObject:
      type: object
      description: A JSON:API resource object.
      properties:
        id:
          type: string
        type:
          type: string
        attributes:
          type: object
          additionalProperties: true
        relationships:
          type: object
          additionalProperties: true
    JsonApiResourceList:
      type: object
      description: A JSON:API list document with pagination metadata.
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/ResourceObject'
        meta:
          type: object
          properties:
            currentPage:
              type: integer
            totalPages:
              type: integer
            totalCount:
              type: integer
    WriteBody:
      type: object
      description: A write payload. Transistor accepts attributes nested under a resource-named key (for example show, episode, or subscriber).
      additionalProperties: true
  parameters:
    ResourceId:
      name: id
      in: path
      required: true
      description: The resource identifier.
      schema:
        type: string
    PageNumber:
      name: pagination[page]
      in: query
      description: The page number to return.
      schema:
        type: integer
    PageSize:
      name: pagination[per]
      in: query
      description: The number of records to return per page.
      schema:
        type: integer
  securitySchemes:
    apiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: API key generated in the Transistor dashboard Account area.