openapi: 3.1.0
info:
  title: Polygon Crypto REST Aggregates Contracts API
  version: '1.0'
  description: 'Polygon Crypto API exposes aggregated cross-exchange data for crypto

    pairs (e.g., X:BTCUSD) via `https://api.polygon.io`. This spec

    covers aggregates, daily open/close, snapshots, and level-2 books.

    Auth uses an API key via `apiKey` query parameter or

    `Authorization: Bearer`.

    '
  contact:
    name: Polygon Documentation
    url: https://polygon.io/docs/crypto
servers:
- url: https://api.polygon.io
  description: Polygon REST API
security:
- apiKeyQuery: []
- bearerAuth: []
tags:
- name: Contracts
  description: Option contract reference data.
paths:
  /v3/reference/options/contracts:
    get:
      tags:
      - Contracts
      operationId: listOptionsContracts
      summary: List Options Contracts
      description: List option contracts matching the given filters.
      parameters:
      - in: query
        name: underlying_ticker
        schema:
          type: string
      - in: query
        name: contract_type
        schema:
          type: string
          enum:
          - call
          - put
      - in: query
        name: expiration_date
        schema:
          type: string
          format: date
      - in: query
        name: as_of
        schema:
          type: string
          format: date
      - in: query
        name: strike_price
        schema:
          type: number
      - in: query
        name: expired
        schema:
          type: boolean
      - in: query
        name: limit
        schema:
          type: integer
          minimum: 1
          maximum: 1000
          default: 10
      responses:
        '200':
          description: Options contracts response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/OptionsContractsResponse'
components:
  schemas:
    OptionContract:
      type: object
      properties:
        cfi:
          type: string
        contract_type:
          type: string
        exercise_style:
          type: string
        expiration_date:
          type: string
          format: date
        primary_exchange:
          type: string
        shares_per_contract:
          type: integer
        strike_price:
          type: number
        ticker:
          type: string
        underlying_ticker:
          type: string
    OptionsContractsResponse:
      type: object
      properties:
        status:
          type: string
        request_id:
          type: string
        next_url:
          type: string
          format: uri
        results:
          type: array
          items:
            $ref: '#/components/schemas/OptionContract'
  securitySchemes:
    apiKeyQuery:
      type: apiKey
      in: query
      name: apiKey
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key