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

# List ranking sources

> Returns each (source, chart_type) pair available on this API together with row counts and freshness for the live snapshot.



## OpenAPI

````yaml /openapi.json get /v1/podcasts/rankings/sources
openapi: 3.1.0
info:
  description: Public API for Particle — news intelligence, financial data, and analysis.
  title: Particle API
  version: 0.1.0
servers:
  - url: https://api.particle.pro
security:
  - ApiKeyHeader: []
  - BearerAuth: []
paths:
  /v1/podcasts/rankings/sources:
    get:
      tags:
        - Podcast Rankings
        - tier:standard
      summary: List ranking sources
      description: >-
        Returns each (source, chart_type) pair available on this API together
        with row counts and freshness for the live snapshot.
      operationId: list-podcast-ranking-sources
      parameters:
        - description: 'Results per page (default: all)'
          explode: false
          in: query
          name: limit
          schema:
            description: 'Results per page (default: all)'
            format: int64
            maximum: 100
            minimum: 1
            type: integer
        - description: Opaque pagination cursor from previous response
          explode: false
          in: query
          name: cursor
          schema:
            description: Opaque pagination cursor from previous response
            type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PagePodcastRankingSource'
          description: OK
        default:
          content:
            application/problem+json:
              schema:
                $ref: '#/components/schemas/PlatformError'
          description: Error
      x-codeSamples:
        - label: cURL
          lang: curl
          source: |-
            curl -H "X-API-Key: $PARTICLE_API_KEY" \
              "https://api.particle.pro/v1/podcasts/rankings/sources"
components:
  schemas:
    PagePodcastRankingSource:
      additionalProperties: false
      properties:
        cursor:
          description: Pass to next request for more results
          type: string
        data:
          description: List of results
          items:
            $ref: '#/components/schemas/PodcastRankingSource'
          type:
            - array
            - 'null'
        has_more:
          description: Whether more results exist
          type: boolean
      required:
        - data
        - has_more
      type: object
    PlatformError:
      additionalProperties: false
      properties:
        detail:
          description: >-
            A human-readable explanation specific to this occurrence of the
            problem.
          examples:
            - Property foo is required but is missing.
          type: string
        error_code:
          type: string
        errors:
          description: Optional list of individual error details
          items:
            $ref: '#/components/schemas/ErrorDetail'
          type:
            - array
            - 'null'
        instance:
          description: >-
            A URI reference that identifies the specific occurrence of the
            problem.
          examples:
            - https://example.com/error-log/abc123
          format: uri
          type: string
        resolve:
          $ref: '#/components/schemas/ErrorResolve'
        status:
          description: HTTP status code
          examples:
            - 400
          format: int64
          type: integer
        title:
          description: >-
            A short, human-readable summary of the problem type. This value
            should not change between occurrences of the error.
          examples:
            - Bad Request
          type: string
        type:
          default: about:blank
          description: A URI reference to human-readable documentation for the error.
          examples:
            - https://example.com/errors/example
          format: uri
          type: string
      type: object
    PodcastRankingSource:
      additionalProperties: false
      properties:
        chart_type:
          description: Chart variant within the source.
          enum:
            - top_podcasts
          type: string
        current_row_count:
          description: Total rows in this source's live snapshot across all chart slots.
          format: int64
          type: integer
        latest_captured_at:
          description: When this source's most recent chart was captured (UTC).
          format: date-time
          type: string
        source:
          description: Source platform identifier.
          enum:
            - apple
            - spotify
          type: string
      required:
        - source
        - chart_type
        - current_row_count
        - latest_captured_at
      type: object
    ErrorDetail:
      additionalProperties: false
      properties:
        location:
          description: >-
            Where the error occurred, e.g. 'body.items[3].tags' or
            'path.thing-id'
          type: string
        message:
          description: Error message text
          type: string
        value:
          description: The value at the given location
      type: object
    ErrorResolve:
      additionalProperties: false
      properties:
        action:
          type: string
        endpoint:
          type: string
        message:
          type: string
        method:
          type: string
        url:
          type: string
      required:
        - message
      type: object
  securitySchemes:
    ApiKeyHeader:
      description: Pass your API key in the X-API-Key header (recommended).
      in: header
      name: X-API-Key
      type: apiKey
    BearerAuth:
      description: Pass your API key as a Bearer token in the Authorization header.
      scheme: bearer
      type: http

````