Fx

Foreign-exchange rates & time series. 2 pay-per-call fx endpoints for AI agents — keyless, USDC via x402.

fx.rates$0.0012

Daily reference exchange rates from the European Central Bank (via Frankfurter).

GET /api/fx/rates

fx.timeseries$0.0014

Historical daily exchange-rate series from the European Central Bank (via Frankfurter), with computed summary statistics.

GET /api/fx/timeseries

Discovery

/api/directory — full catalog of every endpoint
/openapi.json — OpenAPI 3.1 spec
/llms.txt — plain-text manifest for LLM ingestion