Braintrust API

AI · Operational · 30d uptime 100%
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Ship quality agents at scale. Braintrust is the AI observability platform for tracing production, running evals, and catching regressions before they reach users.

Trust signals

Pricing
FREEMIUM
Auth
API_KEY
CORS
No
Rate limit
Plan-based limits
Health
244ms
Trust score
89 (B)

Last checked Oct 19, 2026 · uptime 24h 100% / 7d 100% / 30d 100%

Strong candidate; weakest signal is CORS.

Links

Integration checklist

  • Auth is API_KEY— no credit card required
  • No CORS — route calls through your backend.
  • Rate limit: Plan-based limits
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Braintrust API — pricing, auth, CORS & health | Reqistry