generated: '2026-07-20'
method: searched
source:
  - https://docs.onetrading.com/llms.txt
  - https://docs.onetrading.com/rest/trading/create-order.md
  - https://docs.onetrading.com/websocket/authenticate.md
  - live probes of https://api.onetrading.com/fast/v1
authentication:
  style: bearer-api-token
  header: 'Authorization: Bearer <token>'
  token_source: Generated in the One Trading UI; carries one or more permission scopes.
  scopes: [Read, Trade, Withdraw, SUBACCOUNT_TRANSFER]
  websocket: AUTHENTICATE message with api_token before private channels.
  ref: authentication/one-trading-authentication.yml
idempotency:
  supported: true
  mechanism: client_id
  description: >-
    On POST /v1/account/orders a caller-supplied client_id (UUID) uniquely
    identifies the order, lets the caller look it up or cancel it by client_id,
    and de-duplicates order submissions. The same client_id is echoed on order
    events over the WebSocket. This is the exchange-native idempotency key for
    order placement.
  field: client_id
  scope: create-order
pagination:
  style: cursor
  params: [max_page_size, cursor]
  notes: >-
    List endpoints (orders, trades, funding payments, positions) are paginated
    and filterable by from/to date range; results are sorted by timestamp
    descending. Cursor-based continuation is used for large result sets.
  applies_to:
    - GET /v1/account/orders
    - GET /v1/account/trades
    - GET /v1/account/futures/funding-payments
    - GET /v1/account/futures/positions-history
versioning:
  scheme: uri-path
  current: v1
  base_url: https://api.onetrading.com/fast
  notes: >-
    Active API is the "Fast API" under /fast/v1. A legacy Bitpanda-Pro-style
    surface at /public/v1 remains reachable but is decommissioned (returns empty
    arrays). See lifecycle/one-trading-lifecycle.yml.
error_envelope:
  shape: '{"error": "<CODE>"}'
  discriminator_field: error
  rfc9457: false
  ref: errors/one-trading-problem-types.yml
rate_limiting:
  documented: false
  notes: No published numeric rate limits were found in the public documentation.
number_format:
  monetary: string
  notes: Prices, amounts and volumes are transmitted as decimal strings to preserve precision.
time_format:
  rest: ISO 8601 UTC (e.g. 2026-07-21T00:55:10.827Z) and epoch_millis
  order_book_time: nanoseconds since epoch
websocket:
  url: wss://streams.fast.onetrading.com
  keepalive: PING / PONG control messages
  ref: asyncapi/one-trading-streams-asyncapi.yml