generated: '2026-08-28'
method: searched
source: https://sondehealth.atlassian.net/wiki/spaces/SA/pages/2706866198/API+Release+Notes+and+Best+Practices
docs_checked:
- url: https://sondehealth.atlassian.net/wiki/spaces/SA/pages/2689105939/REST+API+Reference
  status: 200
- url: https://sondehealth.atlassian.net/wiki/spaces/SA/pages/2706866198/API+Release+Notes+and+Best+Practices
  status: 200
- url: https://sondehealth.atlassian.net/wiki/spaces/SPPA/pages/1614250108/REST+API+Reference
  status: 200
limit_count: 0
limits: []
response_headers: []
exhaustion_status: null
note: >-
  Sonde publishes no rate limits. A full-text sweep of all 70 pages in both public
  documentation spaces found no quota, no throttling policy, no 429 response, and no
  X-RateLimit-* / RateLimit-* / Retry-After header documented anywhere. The published
  OpenAPI declares no 429 response either. An agent calling this API has no runtime
  signal telling it when to back off — an honest zero, and a gap worth raising with the
  provider.
observed:
  probed: false
  reason: >-
    Every Sonde endpoint requires partner credentials issued under contract. An
    unauthenticated request to https://api.sondeservices.com returns 403
    {"message":"Missing Authentication Token"} with no rate-limit headers, so no live
    limit could be observed without credentials we do not have and would not use.
  evidence:
  - url: https://api.sondeservices.com/
    status: 403
adjacent_guidance:
  - guidance: >-
      Sonde recommends asking a user for no more than 3 voice samples when the
      Elicitation Check keeps failing — a client-side retry ceiling, not a server limit.
    source: https://sondehealth.atlassian.net/wiki/spaces/SA/pages/2706866198/API+Release+Notes+and+Best+Practices
  - guidance: >-
      Access tokens expire after 3600 seconds; partner backends must re-fetch. This is
      the only documented periodic call constraint.
    source: authentication/sonde-health-authentication.yml