> ## 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 publisher advertising leaderboard > Ranks podcast publishers by an advertising activity metric across their entire catalog. ads_per_active_podcast is the monetization-density metric — small sub-networks (e.g. 'iHeartPodcasts and The Volume', 'Dan Patrick Network') typically rank far above broad catalogs on this dimension. ## OpenAPI ````yaml /openapi.json get /v1/podcasts/advertising/publishers/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/publishers/leaderboard: get: tags: - Podcast Advertising - tier:premium summary: Get publisher advertising leaderboard description: >- Ranks podcast publishers by an advertising activity metric across their entire catalog. ads_per_active_podcast is the monetization-density metric — small sub-networks (e.g. 'iHeartPodcasts and The Volume', 'Dan Patrick Network') typically rank far above broad catalogs on this dimension. operationId: get-publisher-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 publishers by. ads_per_active_podcast surfaces monetization density (small sub-networks often outrank big catalogs). Ranking reflects an all-time MV-fresh snapshot; this endpoint does not currently support time-window filters. explode: false in: query name: metric schema: default: ad_count description: >- Metric to rank publishers by. ads_per_active_podcast surfaces monetization density (small sub-networks often outrank big catalogs). Ranking reflects an all-time MV-fresh snapshot; this endpoint does not currently support time-window filters. enum: - ad_count - unique_sponsors - podcast_reach - episode_reach - ads_per_active_podcast type: string - description: >- Only rank publishers with at least this many active podcasts (catalog podcasts that have run at least one detected ad). Guards ads_per_active_podcast and the other density-style metrics against tiny catalogs dominating the leaderboard — single-show publishers can otherwise rank #1 on ads_per_active_podcast purely on noise. explode: false in: query name: min_active_podcasts schema: default: 5 description: >- Only rank publishers with at least this many active podcasts (catalog podcasts that have run at least one detected ad). Guards ads_per_active_podcast and the other density-style metrics against tiny catalogs dominating the leaderboard — single-show publishers can otherwise rank #1 on ads_per_active_podcast purely on noise. format: int64 maximum: 1000 minimum: 1 type: integer responses: '200': content: application/json: schema: $ref: '#/components/schemas/PagePublisherAdvertisingLeaderboardEntry' 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/publishers/leaderboard?limit=25&metric=ad_count&min_active_podcasts=5" components: schemas: PagePublisherAdvertisingLeaderboardEntry: additionalProperties: false properties: cursor: description: Pass to next request for more results type: string data: description: List of results items: $ref: '#/components/schemas/PublisherAdvertisingLeaderboardEntry' 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 PublisherAdvertisingLeaderboardEntry: additionalProperties: false properties: ad_count: description: Total ads across the publisher's catalog format: int64 type: integer ads_per_active_podcast: description: Mean ad count across active podcasts — monetization density. format: double type: number coverage: $ref: '#/components/schemas/PublisherAdvertisingCoverage' description: Catalog size and how much of it carries ads. episode_reach: description: Distinct episodes with ads format: int64 type: integer publisher: $ref: '#/components/schemas/PodcastPublisherCompact' description: Publisher reference rank: description: Position in the leaderboard format: int64 type: integer unique_sponsors: description: Distinct sponsors across the catalog format: int64 type: integer required: - rank - publisher - coverage - ad_count - unique_sponsors - episode_reach - ads_per_active_podcast 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 PublisherAdvertisingCoverage: additionalProperties: false properties: active_coverage: description: >- active_podcasts / total_podcasts, clamped to [0, 1]. Treat as a confidence proxy for the rolled-up totals. format: double type: number active_podcasts: description: Number of catalog podcasts that have at least one detected ad. format: int64 type: integer total_podcasts: description: >- Number of podcasts in the publisher's catalog (denormalized from podcast_publishers.podcast_count). format: int64 type: integer required: - total_podcasts - active_podcasts - active_coverage type: object PodcastPublisherCompact: additionalProperties: false properties: id: description: Publisher ID type: string name: description: Publisher name type: string slug: description: >- Human-readable slug identifier (e.g., 'goalhanger', 'iheartpodcasts'). When present, accepted in place of the ID anywhere a publisher reference is taken in the API. Occasionally absent on publishers whose name doesn't slugify (e.g., scripts not representable in ASCII URL slugs). 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 ````