# Services from currency-api-production-4a8d.up.railway.app on Zero

> currency-api-production-4a8d.up.railway.app serves 5 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/currency-api-production-4a8d.up.railway.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/currency-api-production-4a8d.up.railway.app/health.json

## Services

- [Batch Crypto Prices (CoinGecko via Railway)](https://www.zero.xyz/c/batch-crypto-prices-coingecko-via-railway-4b2b65d3/llms.txt): $0.001/call via x402. Fetches current prices, market caps, and 24-hour changes for up to 50 cryptocurrencies in a single batch call, using CoinGecko data.
- [Cryptocurrency Single Price Lookup (CoinGecko)](https://www.zero.xyz/c/cryptocurrency-single-price-lookup-coingecko-e8467531/llms.txt): $0.001/call via x402. Returns the current price, market cap, and 24-hour change for a single cryptocurrency by symbol or name, quoted in a specified fiat currency.
- [Currency API – Latest Fiat Exchange Rates](https://www.zero.xyz/c/currency-api-latest-fiat-exchange-rates-77c72f57/llms.txt): $0.001/call via x402. Returns the latest ECB fiat exchange rates for a given base currency, optionally filtered to specific target currency codes.
- [Currency Fiat Conversion (ECB Rates)](https://www.zero.xyz/c/currency-fiat-conversion-ecb-rates-2f642c55/llms.txt): $0.001/call via x402. Converts a specified amount from one fiat currency to another using the latest European Central Bank exchange rate, returning the rate, converted amount, and rate date.
- [Historical Fiat Exchange Rates API](https://www.zero.xyz/c/historical-fiat-exchange-rates-api-9d12ee10/llms.txt): $0.001/call via x402. Returns historical fiat currency exchange rates for a specified date (back to 1999-01-04) and base currency, sourced via ECB/Frankfurter

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)