One Trading Funding API

openapi: 3.0.3
info:
  title: One Trading Fast Funding API
  version: '1.0'
  description: 'REST API for the One Trading exchange ("Fast API"). Public market-data endpoints (currencies, instruments, order book, candlesticks, market ticker, fees, funding rates, server time) require no authentication. Account, trading and futures endpoints require a Bearer API token with the appropriate permission scope (Read / Trade / Withdraw / SUBACCOUNT_TRANSFER).

    Provenance: this specification was reconstructed by API Evangelist from the provider''s public documentation index (https://docs.onetrading.com/llms.txt) and from live responses of the public endpoints. Request/response schemas for public endpoints reflect real observed payloads; authenticated operations are modeled from the documented operation catalog. It is not the provider''s official machine-readable contract.'
  x-provenance:
    generated: '2026-07-20'
    method: generated
    source:
    - https://docs.onetrading.com/llms.txt
    - https://api.onetrading.com/fast/v1/currencies
    - https://api.onetrading.com/fast/v1/instruments
    - https://api.onetrading.com/fast/v1/market-ticker
    - https://api.onetrading.com/fast/v1/order-book/BTC_USDC
    - https://api.onetrading.com/fast/v1/fees
    - https://api.onetrading.com/fast/v1/funding-rate
    - https://docs.onetrading.com/rest/trading/create-order.md
servers:
- url: https://api.onetrading.com/fast
  description: Production
security:
- BearerToken: []
tags:
- name: Funding
  description: Subaccount balance transfers
paths:
  /v1/subaccounts/transfers:
    post:
      tags:
      - Funding
      operationId: transferSubaccountBalance
      summary: Transfer Subaccount Balance
      description: Transfers an amount of a single currency between two accounts belonging to the authenticated account holder (main account or any subaccount). Requires SUBACCOUNT_TRANSFER scope.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SubaccountTransferRequest'
      responses:
        '200':
          description: Transfer accepted
        '403':
          description: Forbidden
        '422':
          description: Unprocessable Entity
components:
  schemas:
    SubaccountTransferRequest:
      type: object
      required:
      - currency
      - amount
      - from
      - to
      properties:
        currency:
          type: string
        amount:
          type: string
        from:
          type: string
          description: Source account/subaccount id
        to:
          type: string
          description: Destination account/subaccount id
  securitySchemes:
    BearerToken:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: 'API token generated in the One Trading UI, sent as ''Authorization: Bearer <token>''. Tokens carry one or more permission scopes: Read, Trade, Withdraw, SUBACCOUNT_TRANSFER.'