> ## 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. # Get advertising leaderboard > Returns the top podcast advertising sponsors ranked by the specified metric, with optional time range and company filtering. All-time rankings — and two day-anchored windows: the trailing 7 days (since = UTC today−7d, no until) and the 7-day window ending 30 days ago (since = today−37d, until = today−30d) — reflect periodically refreshed snapshots; other time-windowed and company-filtered results may be cached for up to one hour. ## OpenAPI ````yaml /openapi.json get /v1/podcasts/advertising/leaderboard 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/advertising/leaderboard: get: tags: - Podcast Advertising - tier:premium summary: Get advertising leaderboard description: >- Returns the top podcast advertising sponsors ranked by the specified metric, with optional time range and company filtering. All-time rankings — and two day-anchored windows: the trailing 7 days (since = UTC today−7d, no until) and the 7-day window ending 30 days ago (since = today−37d, until = today−30d) — reflect periodically refreshed snapshots; other time-windowed and company-filtered results may be cached for up to one hour. operationId: get-advertising-leaderboard parameters: - description: Results per page explode: false in: query name: limit schema: default: 25 description: Results per page 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 - description: Metric to rank sponsors by explode: false in: query name: metric schema: default: ad_count description: Metric to rank sponsors by enum: - ad_count - podcast_reach - episode_reach type: string - description: >- Only include ads from episodes published on or after this ISO 8601 date or date-time (e.g. 2025-01-01 or 2025-01-01T00:00:00Z) explode: false in: query name: since schema: description: >- Only include ads from episodes published on or after this ISO 8601 date or date-time (e.g. 2025-01-01 or 2025-01-01T00:00:00Z) examples: - '2025-01-01T00:00:00Z' type: string - description: >- Only include ads from episodes published before this ISO 8601 date or date-time (e.g. 2026-01-01 or 2026-01-01T00:00:00Z) explode: false in: query name: until schema: description: >- Only include ads from episodes published before this ISO 8601 date or date-time (e.g. 2026-01-01 or 2026-01-01T00:00:00Z) examples: - '2026-01-01T00:00:00Z' type: string - description: Filter by company ID, domain, or entity slug explode: false in: query name: company_id schema: description: Filter by company ID, domain, or entity slug type: string - description: >- Restrict the leaderboard to ads on podcasts attributed to this publisher (slug or ID) explode: false in: query name: publisher_id schema: description: >- Restrict the leaderboard to ads on podcasts attributed to this publisher (slug or ID) type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/PageLeaderboardEntryV1' 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/advertising/leaderboard?limit=25&metric=ad_count" components: schemas: PageLeaderboardEntryV1: additionalProperties: false properties: cursor: description: Pass to next request for more results type: string data: description: List of results items: $ref: '#/components/schemas/LeaderboardEntryV1' 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 LeaderboardEntryV1: additionalProperties: false properties: rank: description: Position in the leaderboard format: int64 type: integer sponsor: $ref: '#/components/schemas/Sponsor' description: Sponsor with activity metrics required: - rank - sponsor 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 Sponsor: additionalProperties: false properties: ad_count: description: Total number of ads (excluding network promos) format: int64 type: integer company: $ref: '#/components/schemas/CompanyCompact' description: Linked company record episode_reach: description: Number of distinct episodes featuring the sponsor format: int64 type: integer first_seen_at: description: Earliest detected ad appearance format: date-time type: string id: description: Unique identifier type: string last_seen_at: description: Most recent ad appearance format: date-time type: string name: description: Sponsor name type: string podcast_reach: description: Number of distinct podcasts the sponsor advertises on format: int64 type: integer required: - id - name - ad_count - podcast_reach - episode_reach type: object CompanyCompact: additionalProperties: false properties: description: description: Short company description, when known. type: string domain: description: Primary website domain (e.g. 'nvidia.com'), when known. type: string id: description: Company identifier (domain, slug, or encoded ID) type: string image_url: description: Company logo or image URL type: string name: description: Company name type: string slug: description: >- Stable human-readable handle (the linked knowledge-graph slug, e.g. 'nvidia'), when known. Companies have no slug of their own; prefer this for display and pass it (or id) to /v1/companies. type: string ticker: description: Primary stock ticker symbol, when listed. type: string required: - id - name 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 ````