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

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

## Services

- [Onchain Gas Price Lookup (Base & Ethereum)](https://www.zero.xyz/c/onchain-gas-price-lookup-base-ethereum-e551619d/llms.txt): $0.001/call via x402. Returns current gas price and base fee in gwei for Base or Ethereum, along with the latest block number.
- [Onchain Balance Lookup (Base & Ethereum)](https://www.zero.xyz/c/onchain-balance-lookup-base-ethereum-1f211a6d/llms.txt): $0.001/call via x402. Returns live ETH and USDC balances for a given wallet address on Base or Ethereum, along with the current block number.
- [Onchain ERC-20 Token Metadata Lookup](https://www.zero.xyz/c/onchain-erc-20-token-metadata-lookup-0b353ab0/llms.txt): $0.001/call via x402. Returns ERC-20 token metadata (name, symbol, decimals, total supply) for a given contract address on Base or Ethereum.
- [onchain Transaction Status Lookup](https://www.zero.xyz/c/onchain-transaction-status-lookup-8b651fc7/llms.txt): $0.001/call via x402. Fetches on-chain transaction details (status, gas used, confirmations, value, block) for a given tx hash on Base or Ethereum.

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)