DOCUMENTATION
What are you trying to build?
Start with one curl command, look up a field, or pull a historical series. The free exchange rate API works without a key for evaluation; a free account gives you 10,000 calls a month.
Start here
Make your first API call
Run a real request in under a minute. You can try it without an API key.
Open guide →ReferenceFind an endpoint or field
Authentication, limits, response fields, errors, and every REST endpoint in one place.
Open guide →Historical dataRequest one date or a time series
Daily FX history from 1999, including pagination and CSV or Parquet downloads.
Open guide →The short version
Base URL
https://api.exchangerate.dev/v1
Anonymous evaluation
12 requests/minute and 100/hour per IP
Free account
10,000 calls/month, no card
Historical coverage
Daily published rates from 1999-01-04
Freshness
source + market_session on every data response
Use
Indicative rates for apps and analysis, not settlement