> ## 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 entity charts > Returns every entity chart with the headline state of its current edition: the edition date, whether narratives have been written yet, and what sits at rank 1. Each chart's `source` says whether its entries measure entity mentions or guest appearances. Use the returned `category_slug` to fetch a full chart. Every chart lists, but `leader` is omitted for charts the caller may not read: an API key reads every chart, while a session without paid Radar access reads only the `all` chart. ## OpenAPI ````yaml /openapi.json get /v1/podcasts/entities/charts openapi: 3.1.0 info: description: Public API for Particle — news intelligence, financial data, and analysis. title: Particle API version: 0.1.0 x-guidance: >- Podcast, people, company and topic intelligence. Authenticate with a pp_ API key (X-API-Key header) or pay per request with x402: a keyless call to a billable endpoint returns 402 with the payment requirements in the PAYMENT-REQUIRED header; sign the USDC transfer and repeat the request with PAYMENT-SIGNATURE. Start with GET /v1/podcasts/search?q=; the slugs in responses are the inputs to the other endpoints. Docs: https://docs.particle.pro; setup playbook: https://api.particle.pro/agents.md; endpoint and tool map with prices: https://api.particle.pro/llms.txt; credential recipe: https://api.particle.pro/auth.md. servers: - url: https://api.particle.pro security: - ApiKeyHeader: [] - BearerAuth: [] paths: /v1/podcasts/entities/charts: get: tags: - Entity Charts - tier:standard summary: List entity charts description: >- Returns every entity chart with the headline state of its current edition: the edition date, whether narratives have been written yet, and what sits at rank 1. Each chart's `source` says whether its entries measure entity mentions or guest appearances. Use the returned `category_slug` to fetch a full chart. Every chart lists, but `leader` is omitted for charts the caller may not read: an API key reads every chart, while a session without paid Radar access reads only the `all` chart. operationId: list-entity-charts parameters: - description: Measurement window for the editions to summarize. explode: false in: query name: window schema: default: 7d description: Measurement window for the editions to summarize. enum: - 7d - 24h type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/PageEntityChartSummary' description: OK '402': content: application/problem+json: schema: $ref: '#/components/schemas/PlatformError' description: >- Payment Required. Read error_code. payment_required is the x402 path: either a keyless request being challenged — pay $0.10 in USDC per request (requirements in the PAYMENT-REQUIRED header) or send a pp_ API key — or a supplied payment that failed settlement (details in the PAYMENT-RESPONSE header; retry the same signature before signing a new one). See https://docs.particle.pro/x402. Any other code means the credential was accepted but does not cover this request (a plan or session gate such as premium_required or paid_plan_confirmation_required); its resolve says how to obtain access, and no payment header is sent. 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/entities/charts?window=7d" components: schemas: PageEntityChartSummary: additionalProperties: false properties: cursor: description: Pass to next request for more results type: string data: description: List of results items: $ref: '#/components/schemas/EntityChartSummary' 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 EntityChartSummary: additionalProperties: false properties: category_name: description: Display name for the chart (e.g. 'TV Series'). type: string category_slug: description: >- Chart identifier, accepted as the {category} path parameter (e.g. 'tv-series', 'movies', 'video-games', 'guests'). type: string caveats: description: Edition-level measurement caveats. items: type: string type: - array - 'null' computed_at: description: When the positions were computed. format: date-time type: string edition_date: description: >- Eastern-time calendar date the edition describes, as YYYY-MM-DD. Empty when no edition has been published yet. type: string enriched_at: description: >- When the narrative pipeline finished. Absent while status is 'computed'. format: date-time type: string leader: $ref: '#/components/schemas/EntityChartSubject' description: The rank-1 entity of the current edition. source: description: >- Which measurement family this chart belongs to, so a client knows which entry fields apply: 'mentions' charts measure organic podcast mentions and carry mention counts, acceleration, and signals — the per-category charts rank by distinct mentioning podcasts, while the composite all chart draws on a wider curated pool of entity types (people, books, music, brands, organizations, sports, events, products, and more) and blends that reach with 52-day elevation, so its rank does not follow podcast_count; the 'guest_appearances' chart ranks people by the distinct shows they appeared on and carries appearances and a highlight clip instead. enum: - mentions - guest_appearances type: string status: description: >- Edition lifecycle: 'computed' means positions are final and narratives have not run; 'enriched' means the narrative pipeline finished. Individual entries carry their own narrative state. type: string window: description: Measurement window this edition covers. type: string required: - category_slug - category_name - source - window 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 EntityChartSubject: additionalProperties: false properties: entity: $ref: '#/components/schemas/EntityCompact' description: >- Knowledge graph entity, on the mention-driven charts. The slug is accepted by the entity endpoints. person: $ref: '#/components/schemas/PersonCompact' description: >- Person, on the guests chart. The slug is accepted by the person and guest endpoints. type: description: >- Which identity this subject carries, and so which field below is populated: 'entity' on the mention-driven charts, 'person' on the guests chart. Omitted on a tombstone, where neither is set; read the chart's 'source' for the family. enum: - entity - person type: string type: object EntityCompact: additionalProperties: false properties: company: $ref: '#/components/schemas/EntityCompany' description: Linked company record, if this entity is a known company description: description: Short description type: string id: description: Entity ID type: string image_url: description: Entity image URL type: string name: description: Entity name type: string person: $ref: '#/components/schemas/EntityPerson' description: Linked person record, if this entity is a known person slug: description: Human-readable slug identifier type: string type: $ref: '#/components/schemas/EntityType' description: Category. Omitted when the entity falls outside the supported set. wikipedia_url: description: Wikipedia URL type: string required: - id - slug - name type: object PersonCompact: additionalProperties: false properties: description: description: Short description (e.g. current role), when known. type: string id: description: Encoded Person identifier type: string image_url: description: Canonical headshot URL when one is known for the Person 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: - id - name type: object EntityCompany: additionalProperties: false properties: domain: description: Company website domain type: string id: description: Company identifier type: string ticker: description: Primary stock ticker symbol type: string required: - id type: object EntityPerson: additionalProperties: false properties: company: description: Current company name type: string id: description: Person identifier type: string image_url: description: Person headshot URL type: string title: description: Current role title type: string required: - id type: object EntityType: additionalProperties: false properties: name: description: Human-friendly display label (e.g. 'Company'). type: string slug: description: >- Stable identifier, safe to pass to the type query parameter (e.g. 'company'). type: string required: - slug - 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 ````