generated: '2026-08-28'
method: searched
source: >-
  Exhaustive negative search of sparrow.com plus anonymous probes of api.trysparrow.com, the
  application backend named in the app.trysparrow.com Content-Security-Policy.
note: >-
  No rate limits are published, because no public API is published. api.trysparrow.com serves a bare
  404 to every anonymous path probed, so no runtime rate-limit headers could be observed either.
  This is an honest zero: there is nothing to document, and nothing was invented.
limit_count: 0
limits: []
response_headers: []
exhaustion_status_code: null
retry_after: unknown
evidence:
- url: https://api.trysparrow.com/
  status: 404
- url: https://sparrow.com/faq/
  status: 200