# Services from fx-pulse-chi.vercel.app on Zero

> fx-pulse-chi.vercel.app serves 3 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-pulse-chi.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/fx-pulse-chi.vercel.app/health.json

## Services

- [FX Pulse – Stablecoin & Fiat FX Reference Rates](https://www.zero.xyz/c/fx-pulse-stablecoin-fiat-fx-reference-rates-f37804d3/llms.txt): $0.015/call via x402. Returns real-time FX reference rates between fiat currencies and major stablecoins (USDC, EURC, USDT) for a given base/quote pair or batch of up to 20 targets.
- [FX Pulse – Stablecoin & Fiat FX Reference Rate (Single Pair)](https://www.zero.xyz/c/fx-pulse-stablecoin-fiat-fx-reference-rate-single-pair-3a4b08ed/llms.txt): $0.003/call via x402. Returns the current exchange rate between a source fiat currency or stablecoin and a target fiat currency or stablecoin.
- [FX Pulse – Stablecoin & Fiat FX Conversion Rate](https://www.zero.xyz/c/fx-pulse-stablecoin-fiat-fx-conversion-rate-aa7b7d86/llms.txt): $0.005/call via x402. Returns a real-time FX rate and converted amount between any fiat currency (ISO-4217) or major stablecoin (USDC, EURC, USDT) pair, paid per-call in USDC via x402 on Base.

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)