# Services from fx.x402utils.workers.dev on Zero

> fx.x402utils.workers.dev serves 4 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/fx.x402utils.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/fx.x402utils.workers.dev/health.json

## Services

- [ECB FX Reference Rates API (fx.x402utils)](https://www.zero.xyz/c/ecb-fx-reference-rates-api-fx-x402utils-ed3ef264/llms.txt): $0.001/call via x402. Returns European Central Bank official foreign-exchange reference rates for ~30 currencies, supporting latest rates and currency conversion via a pay-per-call x402 endpoint.
- [ECB Historical FX Rates](https://www.zero.xyz/c/ecb-historical-fx-rates-1fbc9e16/llms.txt): $0.001/call via x402. Returns official European Central Bank foreign-exchange reference rates for a specific historical date, converting between ~30 currencies.
- [ECB FX Currency Converter](https://www.zero.xyz/c/ecb-fx-currency-converter-5b86c221/llms.txt): $0.001/call via x402. Converts a monetary amount from one currency to another using official European Central Bank reference exchange rates.
- [ECB Foreign Exchange Reference Rates API](https://www.zero.xyz/c/ecb-foreign-exchange-reference-rates-api-e42f4552/llms.txt): $0.001/call via x402. Returns the list of ~30 currencies covered by official ECB FX reference rates, enabling agents to discover supported currencies before fetching rates or conversions.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)