generated: '2026-08-29'
method: probed
source: >-
  live anonymous requests to https://api.sygnum.com/b2b/v1/available-scopes and
  /b2b/v1/clients, response headers inspected 2026-08-29
limit_count: 0
note: >-
  No rate limits are published for the Sygnum B2B API and none were signalled at runtime.
  The 401 responses from api.sygnum.com carry no X-RateLimit-*, no RateLimit-* (RFC 9331
  draft) and no Retry-After header. An agent integrating against this API has no runtime
  budget signal at all and would have to discover limits by hitting them.
limits: []
headers_observed: []
headers_absent:
- X-RateLimit-Limit
- X-RateLimit-Remaining
- X-RateLimit-Reset
- RateLimit
- RateLimit-Policy
- Retry-After
exhaustion_status: not published
evidence:
- url: https://api.sygnum.com/b2b/v1/available-scopes
  status: 401
  headers: >-
    www-authenticate, vary, access-control-allow-origin, cf-cache-status,
    x-xss-protection, expect-ct, referrer-policy, x-content-type-options,
    x-frame-options, server, cf-ray
- url: https://api.sygnum.com/b2b/v1/clients
  status: 401
caveat: >-
  Only anonymous, pre-authentication responses were observable. Limits may be documented
  inside the client-only specifications and may be signalled on authenticated responses.