> ## 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 trending podcast guests > Surfaces guests who are currently making the podcast rounds — the kind of cross-show interview activity that signals a book launch, product unveil, news-cycle moment, or new-on-the-scene debut. Each row is a guest whose recent activity is materially elevated above their own historical baseline AND who has appeared on multiple distinct podcasts inside the window with substantive (5+ minute) interviews. Filter by recency window, topic, brand-safety tier, and an optional first-appearance cutoff to find people new to the scene. This is not a leaderboard of perennial podcast regulars, recurring co-hosts, or daily news-segment contributors — those are filtered out by design; use /v1/podcasts/guests for a steady-state directory. ## OpenAPI ````yaml /openapi.json get /v1/podcasts/guests/trends 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/guests/trends: get: tags: - Podcast Guests - tier:standard summary: List trending podcast guests description: >- Surfaces guests who are currently making the podcast rounds — the kind of cross-show interview activity that signals a book launch, product unveil, news-cycle moment, or new-on-the-scene debut. Each row is a guest whose recent activity is materially elevated above their own historical baseline AND who has appeared on multiple distinct podcasts inside the window with substantive (5+ minute) interviews. Filter by recency window, topic, brand-safety tier, and an optional first-appearance cutoff to find people new to the scene. This is not a leaderboard of perennial podcast regulars, recurring co-hosts, or daily news-segment contributors — those are filtered out by design; use /v1/podcasts/guests for a steady-state directory. operationId: list-podcast-guest-trends 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: 'Inclusive lower bound of the trend window (default: 30 days ago)' explode: false in: query name: since schema: description: 'Inclusive lower bound of the trend window (default: 30 days ago)' type: string - description: >- Minimum number of distinct podcasts the guest must have appeared on inside the window (default 2) explode: false in: query name: min_distinct_podcasts schema: description: >- Minimum number of distinct podcasts the guest must have appeared on inside the window (default 2) format: int64 minimum: 2 type: integer - description: >- Restrict to guests whose earliest-ever appearance is on or after this date (the "new on the scene" cut) explode: false in: query name: first_appearance_since schema: description: >- Restrict to guests whose earliest-ever appearance is on or after this date (the "new on the scene" cut) type: string - description: >- Restrict to guests with at least one in-window appearance on an episode classified under this topic explode: false in: query name: topic_id schema: description: >- Restrict to guests with at least one in-window appearance on an episode classified under this topic type: string - description: >- Restrict to in-window appearances on podcasts at or below this IAB Tech Lab brand-safety tier explode: false in: query name: suitability_tier_max schema: description: >- Restrict to in-window appearances on podcasts at or below this IAB Tech Lab brand-safety tier enum: - SAFE - LIMITED - SENSITIVE - UNSAFE type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/PagePodcastGuestTrend' 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/guests/trends?limit=25" components: schemas: PagePodcastGuestTrend: additionalProperties: false properties: cursor: description: Pass to next request for more results type: string data: description: List of results items: $ref: '#/components/schemas/PodcastGuestTrend' 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 PodcastGuestTrend: additionalProperties: false properties: first_appearance_in_window: description: Publication date of the earliest appearance in the window format: date-time type: string guest: $ref: '#/components/schemas/PodcastGuestCompact' description: Guest summary last_appearance_at: description: Publication date of the most-recent appearance format: date-time type: string recent_appearances: description: >- Episode appearances inside the trend window. Every appearance is on a distinct podcast — guests with repeats on the same show inside the window are excluded so the listing reflects cross-show press tours, not regulars stacking repeats. format: int64 type: integer required: - guest - recent_appearances 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 PodcastGuestCompact: additionalProperties: false properties: appearance_count: description: >- Episode appearances in the scope of the listing. For the directory and trends this is the guest's lifetime corpus-wide count; for the podcast-roster and when the directory is filtered with appeared_on_podcast_id, it is scoped to that podcast. format: int64 type: integer description: description: Short description (e.g. current role), when known. type: string distinct_podcasts: description: >- Lifetime distinct podcasts the guest has appeared on across the corpus. Omitted when the listing is already scoped to a single podcast. format: int64 type: integer first_appearance_at: description: >- Publication date of the earliest appearance within the listing's scope format: date-time type: string id: description: Encoded Person identifier type: string image_url: description: Canonical headshot URL when one is known for the Person type: string last_appearance_at: description: >- Publication date of the most recent appearance within the listing's scope format: date-time type: string name: description: Display name type: string slug: description: >- Stable human-readable handle (e.g. 'satya-nadella'). Recommended canonical identifier on every Particle Pro person surface. type: string required: - appearance_count - 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 ````