Frankfurter API
Currency Exchange · Operational · 30d uptime 100%
Free, open-source exchange rates API sourcing from 104 central banks and official sources. Current and historical rates for 223 currencies. No API key required.
Trust signals
Pricing
FREE
Auth
NONE
CORS
Yes
Rate limit
Unknown
Health
287ms
Trust score
97 (A)
Last checked Oct 18, 2026 · uptime 24h 100% / 7d 100% / 30d 100%
Excellent production-readiness signals.
Links
- Homepagewww.frankfurter.app/docs
- Documentationwww.frankfurter.app/docs
- Base URLwww.frankfurter.app/docs
Integration checklist
- Auth is NONE
- CORS enabled — callable directly from browsers.
- Rate limit: Unknown