name: Saxo Bank OpenAPI Rate Limits
description: >-
  The Saxo Bank OpenAPI enforces three independent rate limit tiers:
  application-level daily quota, session-level per-minute quota, and
  a per-session order rate. Exceeding any limit returns HTTP 429. The API
  also rejects duplicate order operations within a 15-second rolling window
  with HTTP 409 unless each request carries a unique x-request-id header.
  Batch requests count individually against all quotas.
created: '2026-06-13'
modified: '2026-06-13'
url: https://www.developer.saxo/openapi/learn/rate-limiting

limits:

  - name: Application Daily Limit
    description: >-
      Maximum total number of requests per registered application across all
      users and sessions within a calendar day.
    header: X-RateLimit-AppDay-Limit
    value: 10000000
    unit: requests/day
    scope: application
    resetWindow: daily

  - name: Session Rate Limit
    description: >-
      Maximum number of requests per active session per service group within
      a rolling one-minute window. Applies independently to each service
      group (e.g. Trading, Portfolio, Reference Data).
    header: X-RateLimit-Session-Limit
    value: 120
    unit: requests/minute
    scope: session
    resetWindow: rolling-60s

  - name: Session Orders Limit
    description: >-
      Maximum number of order placement operations per session per second.
      Applies to POST and PATCH requests to order endpoints.
    header: X-RateLimit-SessionOrders-Limit
    value: 1
    unit: orders/second
    scope: session

responseHeaders:
  - name: X-RateLimit-AppDay-Limit
    description: Total allowed application-level requests for the day.
  - name: X-RateLimit-AppDay-Remaining
    description: Remaining application-level requests in the current day window.
  - name: X-RateLimit-AppDay-Reset
    description: Seconds until the application-level daily quota resets.
  - name: X-RateLimit-Session-Limit
    description: Total allowed requests for the current session per service group.
  - name: X-RateLimit-Session-Remaining
    description: Remaining requests for the current session in the rolling window.
  - name: X-RateLimit-Session-Reset
    description: Seconds until the session-level quota refreshes.
  - name: X-RateLimit-SessionOrders-Limit
    description: Total allowed order operations per second for the session.
  - name: X-RateLimit-SessionOrders-Remaining
    description: Remaining order operations in the current second window.
  - name: X-RateLimit-SessionOrders-Reset
    description: Seconds until the order rate limit window resets.

errorCodes:
  - code: 429
    description: >-
      Too Many Requests. Returned when any rate limit threshold is exceeded.
      Clients should back off and retry after the Reset period indicated
      in the corresponding response header.
  - code: 409
    description: >-
      Conflict. Returned when an identical POST or PATCH request to an order
      endpoint is detected within a 15-second rolling window. To bypass
      duplicate detection, include a unique x-request-id header on each
      request.
  - code: 403
    description: >-
      Forbidden. May be returned by Akamai network security before the request
      reaches OpenAPI servers when the originating IP address has a low
      reputation score. Affects shared or datacenter IP ranges more severely
      than dedicated IPs.

notes:
  - Batch requests count as N+1 individual requests (one per item plus the batch envelope).
  - Rate limits apply independently per service group at the session level.
  - The duplicate-order 15-second window applies to POST and PATCH methods on trading endpoints only.