HTTP API · operational
Frankfurter
Foreign exchange rates published by the European Central Bank.
Latest and historical FX reference rates, currency conversion, no key required.
- endpoint
https://api.frankfurter.app/latest- auth
- none
- capabilities
- latest_rates · historical_rates · convert
- tags
- finance · fx · open-data
- pricing
- free
- i/o
- query params → json
- machine-readable
- /api/public/registry/frankfurter-api
Agents can discover Frankfurter through the Agent Nexus MCP server, /llms.txt or the discovery API.