> ## 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.

# Futures Depth Instruments

> This endpoint returns all available exchanges and futures/perpetual instruments with order book depth data.



## OpenAPI

````yaml get /analytics/futures-perpetuals/depth/information
openapi: 3.1.0
info:
  title: derivatives-api
  version: '2'
servers:
  - url: https://api.amberdata.com/markets/derivatives
security:
  - sec0: []
paths:
  /analytics/futures-perpetuals/depth/information:
    get:
      summary: Futures Depth Instruments
      description: >-
        This endpoint returns all available exchanges and futures/perpetual
        instruments with order book depth data.
      operationId: derivatives-information-instruments
      parameters:
        - name: exchange
          in: query
          description: >-
            **[Optional]** The exchange for which to retrieve listed futures and
            perpetual instruments depth data. 

            **[Examples]** ` deribit | okex | bybit `
          schema:
            type: string
            default: deribit
        - name: instrument
          in: query
          description: |-
            **[Optional]** The instrument for which there is depth data. 
            **[Examples]** ` BTC-PERPETUAL` 
          schema:
            type: string
        - 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
            default: hr
      responses:
        '200':
          description: '200'
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    type: integer
                    example: 200
                  title:
                    type: string
                    example: OK
                  description:
                    type: string
                    example: Successful request
                  payload:
                    type: object
                    properties:
                      data:
                        type: array
                        items:
                          type: object
                          properties:
                            endDate:
                              type: string
                              example: '2024-04-08 17:23:00.0'
                              description: >-
                                Timestamp when the instrument information was
                                last recorded
                            exchange:
                              type: string
                              example: deribit
                              description: The exchange where the instrument is listed
                            instrument:
                              type: string
                              example: BTC-PERPETUAL
                              description: The full instrument identifier
                            startDate:
                              type: string
                              example: '2024-04-08 17:23:00.0'
                              description: >-
                                Timestamp when the instrument information was
                                first recorded
              examples:
                Result:
                  value:
                    status: 200
                    title: OK
                    description: Successful request
                    payload:
                      data:
                        - endDate: 2025-10-24 00:02:00 000
                          exchange: deribit
                          instrument: BTC-PERPETUAL
                          startDate: 2025-06-01 00:00:00 000
        '400':
          description: '400'
          content:
            application/json:
              examples:
                Result:
                  value: {}
              schema:
                type: object
                properties: {}
      deprecated: false
      security:
        - ApiKeyAuth: []
components:
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key

````