> ## Documentation Index > Fetch the complete documentation index at: https://docs.amberdata.io/llms.txt > Use this file to discover all available pages before exploring further. # Reference > Provides essential reference details for options contracts on supported exchanges, including contract symbols, underlying assets, strike prices, expiration dates, settlement types, price and volume limits, and precision requirements. ## OpenAPI ````yaml get /options/exchanges/reference openapi: 3.1.0 info: title: market-api version: '2' servers: - url: https://api.amberdata.com/markets security: - ApiKeyAuth: [] paths: /options/exchanges/reference: get: summary: Reference description: >- Provides essential reference details for options contracts on supported exchanges, including contract symbols, underlying assets, strike prices, expiration dates, settlement types, price and volume limits, and precision requirements. operationId: options-exchanges-reference parameters: - name: exchange in: query description: >- **[Optional]** Only return data for the given exchange(s) (comma separated) schema: type: string - name: instrument in: query description: Only return data for the given pair. schema: type: string - name: includeInactive in: query description: >- **[Optional]** If true, endpoint returns all instruments, including delisted ones. **[Defaults]** `True | False*`. schema: type: boolean - name: size in: query description: >- **[Optional]** The number of records per page (only available when `includeInactive=true`). schema: type: integer format: int32 - name: startDate in: query description: >- **[Optional]** Payload only includes instruments which have expiration after this date (inclusive). **[Formats]** `seconds | milliseconds | iso8601` **[Examples]** `1578531600 | 1578531600000 | 2020-09-01T01:00:00` schema: type: string format: date-time - name: endDate in: query description: >- **[Optional]** Payload only includes instruments which have expiration before this date (exclusive). **[Formats]** `seconds | milliseconds | iso8601` **[Examples]** `1578531600 | 1578531600000 | 2020-09-01T01:00:00` schema: type: string format: date-time - name: includeOriginalReference in: query description: >- **[Optional]** If true, endpoint returns originalReference. **[Defaults]** `True | False*`. schema: type: boolean - name: timeFormat in: query description: >- **[Optional]** Time format of the timestamps in the return payload. **[Defaults]** `milliseconds | ms* | iso | iso8601 | hr | human_readable` schema: type: string - name: Accept-Encoding in: header required: true description: '' schema: type: string default: gzip, deflate, br - name: api-version in: header schema: type: string responses: '200': description: '200' content: application/json: examples: Success: value: status: 200 title: OK description: Successful request payload: metadata: next: >- https://api.amberdata.com/markets/options/exchanges/reference?cursor=N4IglgdgxgNgrgEwKYEkIEMoBcwDckgBcAZujAM5IA0408yA8gE5gDmkZASksUk0tAIkylGpFiIkAVQjk4AB3kB7JliQIAogA8oAC3QRWSckVIVqIHAFskAMRVX0WIiCtgYMMJShKICEzTEDk4uAFbkviA08uhGRACMNORgAF5CAKwADJkAvkA api-version: '2023-09-30' data: - exchange: bybit instrument: BTC-16AUG24-50000-C baseSymbol: BTC quoteSymbol: USDC market: options exchangeEnabled: true limitsPriceMin: 5 limitsPriceMax: 10000000 limitsVolumeMin: null limitsVolumeMax: null limitsMarketMin: 0.01 limitsMarketMax: 500 limitsLeverageMin: null limitsLeverageMax: null limitsLeverageSuperMax: null limitsCostMin: null limitsCostMax: null precisionPrice: 5 precisionVolume: 0.01 precisionBase: null precisionQuote: null listingTimestamp: 1721894400000 contractUnderlying: BTC contractExpirationTimestamp: 1723795200000 contractPeriod: weekly contractSize: null contractSettleType: option contractSettleSymbol: USDC optionType: call optionStrikePrice: 50000 schema: oneOf: - title: Success type: object properties: status: type: integer example: 200 default: 0 title: type: string example: OK description: type: string example: Successful request payload: type: object properties: metadata: type: object properties: next: type: string example: >- https://api.amberdata.com/markets/options/exchanges/reference?cursor=N4IglgdgxgNgrgEwKYEkIEMoBcwDckgBcAZujAM5IA0408yA8gE5gDmkZASksUk0tAIkylGpFiIkAVQjk4AB3kB7JliQIAogA8oAC3QRWSckVIVqIHAFskAMRVX0WIiCtgYMMJShKICEzTEDk4uAFbkviA08uhGRACMNORgAF5CAKwADJkAvkA api-version: type: string example: '2023-09-30' data: type: array items: type: object properties: exchange: type: string example: bybit instrument: type: string example: BTC-16AUG24-50000-C baseSymbol: type: string example: BTC quoteSymbol: type: string example: USDC market: type: string example: options exchangeEnabled: type: boolean example: true default: true limitsPriceMin: type: integer example: 5 default: 0 limitsPriceMax: type: integer example: 10000000 default: 0 limitsVolumeMin: {} limitsVolumeMax: {} limitsMarketMin: type: number example: 0.01 default: 0 limitsMarketMax: type: integer example: 500 default: 0 limitsLeverageMin: {} limitsLeverageMax: {} limitsLeverageSuperMax: {} limitsCostMin: {} limitsCostMax: {} precisionPrice: type: integer example: 5 default: 0 precisionVolume: type: number example: 0.01 default: 0 precisionBase: {} precisionQuote: {} listingTimestamp: type: integer example: 1721894400000 default: 0 contractUnderlying: type: string example: BTC contractExpirationTimestamp: type: integer example: 1723795200000 default: 0 contractPeriod: type: string example: weekly contractSize: {} contractSettleType: type: string example: option contractSettleSymbol: type: string example: USDC optionType: type: string example: call optionStrikePrice: type: integer example: 50000 default: 0 deprecated: false components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: x-api-key ````