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Frankfurter v2

FX & Currency No key Editor's pick

AuthenticationNo key
Rate limitNo published numeric limit; abuse protection only. Cache results and avoid hammering.

Documentation: frankfurter.dev ยท Checked Sep 13, 2026

About

Frankfurter is an open-source, keyless API for daily foreign exchange rates sourced from central banks and official institutions, with historical data back to 1948. No signup, no key. Just call the endpoint. Great for converters, historical FX analysis, and invoicing tools.

Details

No key needed. You can call it right away.

Auth: No key

Rate limit: No published numeric limit; abuse protection only. Cache results and avoid hammering.

Verified: 2026-09-13

Best for: Currency converters Historical FX charts Accounting tools

Read the docs Back to catalog

Setup

  1. No signup or API key needed.
  2. Call https://api.frankfurter.dev/v2 endpoints directly.
  3. Cache responses; rates update once per day.
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