Latest rates
Get current rates for one base currency and the symbols you choose.
Exchange Rate API documentation
Get current rates, convert an amount, or request historical data.
Start here
Make your first request
Request EUR and GBP rates without an API key, then add a key when you need account quota.
First request
GET /v1/latest/USD?symbols=EUR,GBPChoose an endpoint
Pick the endpoint that matches your request.
Convert an amount
Convert one amount or send a batch of conversions.
Historical data
Request one date, a daily range, or intraday observations.
MCP server
Use rates and conversions from an MCP-compatible client.
Reference
Base URL, access, limits, and intended use.
- Base URL
- https://api.exchangerate.dev/v1
- First request
- No API key required
- Free account
- 10,000 calls/month
- Use
- Indicative rates for apps and analysis
Source and freshness
Check the source, timestamp, and market session in each response.
Currency coverage
Check the supported bases, quote currencies, and available history.
Practical guides
Common ways to use exchange-rate data.
use exchange rates in Excel · get a free exchange rate API key · find IRS yearly average exchange rates