Polkadot Currency API

openapi: 3.1.0
info:
  title: Polkadot REST Account Currency API
  description: High-performance Rust REST API for Substrate/Polkadot blockchain data. Drop-in replacement for substrate-api-sidecar.
  contact:
    url: https://github.com/paritytech/polkadot-rest-api
  license:
    name: GPL-3.0-or-later
  version: 0.1.3
servers:
- url: http://localhost:8080/v1
  description: Localhost
tags:
- name: Currency
paths:
  /api/open/currencies:
    post:
      consumes:
      - application/json
      description: Returns the supported currency codes that can be used for native-token price lookup and conversion.
      produces:
      - application/json
      responses:
        '200':
          description: OK
          schema:
            allOf:
            - $ref: '#/definitions/internal_server_http.J'
            - properties:
                data:
                  properties:
                    currencies:
                      items:
                        type: string
                      type: array
                  type: object
              type: object
      summary: List supported native-token quote currencies
      tags:
      - Currency
      x-synonyms:
      - supported
      - currencies
      - currency
      - open
  /api/open/price:
    post:
      consumes:
      - application/json
      description: Returns the native-token price quote for the requested timestamp. Use this endpoint for historical token price lookup in supported quote currencies.
      parameters:
      - description: params
        in: body
        name: params
        required: true
        schema:
          $ref: '#/definitions/internal_server_http.currencyPriceParams'
      produces:
      - application/json
      responses:
        '200':
          description: OK
          schema:
            allOf:
            - $ref: '#/definitions/internal_server_http.J'
            - properties:
                data:
                  $ref: '#/definitions/subscan_internal_service_scan.CurrencyPrice'
              type: object
      summary: Get the native token price at a specific time
      tags:
      - Currency
      x-synonyms:
      - currency
      - price
      - open
      - rate
      - valuation
  /api/open/price_converter:
    post:
      consumes:
      - application/json
      description: Converts a token amount from one supported currency into another using the price snapshot at the requested time. Returns both the converted output value and the quote data used for the calculation.
      parameters:
      - description: params
        in: body
        name: params
        required: true
        schema:
          $ref: '#/definitions/internal_server_http.currencyConverterParams'
      produces:
      - application/json
      responses:
        '200':
          description: OK
          schema:
            allOf:
            - $ref: '#/definitions/internal_server_http.J'
            - properties:
                data:
                  $ref: '#/definitions/internal_server_http.CurrencyConverter'
              type: object
      summary: Convert one token value between currencies
      tags:
      - Currency
      x-synonyms:
      - currency
      - price
      - converter
      - open
      - rate
      - valuation
definitions:
  internal_server_http.currencyConverterParams:
    properties:
      from:
        type: string
      quote:
        type: string
      time:
        type: integer
      value:
        type: string
    required:
    - from
    - quote
    - value
    type: object
  internal_server_http.CurrencyConverter:
    properties:
      output:
        type: string
      price:
        $ref: '#/definitions/subscan_internal_service_scan.CurrencyPrice'
    type: object
  subscan_internal_service_scan.CurrencyPrice:
    properties:
      price:
        type: string
      records:
        items:
          $ref: '#/definitions/subscan_internal_service_scan.PriceRecord'
        type: array
      time:
        type: integer
    type: object
  internal_server_http.J:
    properties:
      code:
        example: 0
        type: integer
      data: {}
      generated_at:
        example: 1699600641
        type: integer
      message:
        example: Success
        type: string
    type: object
  internal_server_http.currencyPriceParams:
    properties:
      base:
        type: string
      quote:
        enum:
        - USD
        type: string
      time:
        minimum: 1
        type: integer
    type: object
  subscan_internal_service_scan.PriceRecord:
    properties:
      price:
        type: string
      time:
        type: integer
    type: object