openapi: 3.1.0 info: title: Polygon.io REST API (Stocks) Aggregates Reference API version: '1.0' description: 'Polygon.io (rebranded as Massive in early 2026) exposes real-time and historical US equity market data via a REST API at `https://api.polygon.io`. This specification captures a representative subset of the Stocks API: aggregate bars and ticker reference. Authentication uses an API key, sent either as the `apiKey` query parameter or as `Authorization: Bearer `. ' contact: name: Polygon.io / Massive Documentation url: https://polygon.io/docs/stocks servers: - url: https://api.polygon.io description: Polygon.io REST API security: - apiKeyQuery: [] - bearerAuth: [] tags: - name: Reference description: Ticker reference data. paths: /v3/reference/tickers: get: tags: - Reference operationId: listTickers summary: List ticker symbols description: Retrieve a comprehensive list of ticker symbols supported across asset classes. parameters: - in: query name: ticker schema: type: string description: Filter by specific ticker symbol. - in: query name: type schema: type: string - in: query name: market schema: type: string enum: - stocks - crypto - fx - otc - indices - in: query name: exchange schema: type: string - in: query name: active schema: type: boolean - in: query name: search schema: type: string - in: query name: order schema: type: string enum: - asc - desc - in: query name: limit schema: type: integer minimum: 1 maximum: 1000 default: 100 - in: query name: sort schema: type: string responses: '200': description: Tickers response content: application/json: schema: $ref: '#/components/schemas/TickersResponse' /v3/reference/tickers/{ticker}: get: tags: - Reference operationId: getTickerDetails summary: Get ticker details description: Retrieve detailed reference information for a single ticker symbol. parameters: - in: path name: ticker required: true schema: type: string - in: query name: date schema: type: string format: date responses: '200': description: Ticker details response content: application/json: schema: $ref: '#/components/schemas/TickerDetailsResponse' components: schemas: TickersResponse: type: object properties: status: type: string request_id: type: string count: type: integer next_url: type: string format: uri results: type: array items: $ref: '#/components/schemas/Ticker' Ticker: type: object properties: ticker: type: string name: type: string market: type: string locale: type: string primary_exchange: type: string type: type: string active: type: boolean currency_name: type: string cik: type: string composite_figi: type: string share_class_figi: type: string last_updated_utc: type: string format: date-time TickerDetailsResponse: type: object properties: status: type: string request_id: type: string results: allOf: - $ref: '#/components/schemas/Ticker' - type: object properties: description: type: string homepage_url: type: string format: uri list_date: type: string format: date market_cap: type: number phone_number: type: string sic_code: type: string sic_description: type: string total_employees: type: integer weighted_shares_outstanding: type: number address: type: object additionalProperties: true branding: type: object properties: logo_url: type: string format: uri icon_url: type: string format: uri securitySchemes: apiKeyQuery: type: apiKey in: query name: apiKey bearerAuth: type: http scheme: bearer bearerFormat: API Key