# Services from gas-optical-production-30aa.up.railway.app on Zero

> gas-optical-production-30aa.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/gas-optical-production-30aa.up.railway.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/gas-optical-production-30aa.up.railway.app/health.json

## Services

- [Multi-Chain Gas Oracle & Whale Watch](https://www.zero.xyz/c/multi-chain-gas-oracle-whale-watch-d77f2885/llms.txt): $0.0001/call via x402. Returns live gas prices for Base, Ethereum, Arbitrum, and Optimism, plus ETH price, current block number, gas predictions, and large whale transfers on Base.
- [Multi-Chain Gas Oracle – ETH Price Feed](https://www.zero.xyz/c/multi-chain-gas-oracle-eth-price-feed-a0393360/llms.txt): $0.0001/call via x402. Returns the current ETH/USD price and a timestamp, sourced from a live multi-chain gas and market data oracle.
- [Multi-Chain Gas Oracle & Gas Prediction](https://www.zero.xyz/c/multi-chain-gas-oracle-gas-prediction-e79c922e/llms.txt): $0.0005/call via x402. Returns live gas prices across Base, Ethereum, Arbitrum, and Optimism, plus ETH price, current block number, 1-hour gas prediction, and large Base whale transfers
- [Multi-Chain Gas Oracle & Whale Watch – /whale-watch](https://www.zero.xyz/c/multi-chain-gas-oracle-whale-watch-whale-watch-6dfe8ed8/llms.txt): $0.001/call via x402. Returns live large-value ETH transfer events on Base, filtering transfers above a threshold (default 1000 ETH), along with count, timestamp, sender/receiver addresses, transaction hashes, and ETH values.
- [Multi-Chain Gas Oracle – Block Number](https://www.zero.xyz/c/multi-chain-gas-oracle-block-number-c1622274/llms.txt): $0.0001/call via x402. Returns the current Ethereum block number along with a timestamp, paid via x402 micropayment on Base mainnet.

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)