# Services from orbit-chain.orbit-builder.workers.dev on Zero

> orbit-chain.orbit-builder.workers.dev 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/orbit-chain.orbit-builder.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/orbit-chain.orbit-builder.workers.dev/health.json

## Services

- [Orbit Chain Reads: EVM Transaction Status](https://www.zero.xyz/c/orbit-chain-reads-evm-transaction-status-f6228183/llms.txt): $0.001/call via x402. Looks up the status and details of an EVM transaction hash on Base, Ethereum, Arbitrum, Optimism, or Polygon
- [Orbit Chain Reads: Wallet Balance](https://www.zero.xyz/c/orbit-chain-reads-wallet-balance-a4d82bda/llms.txt): $0.001/call via x402. Returns native coin balance, USDC balance, transaction count, contract status, and explorer link for any EVM address on Base, Ethereum, Arbitrum, Optimism, or Polygon
- [Orbit Chain Reads – EVM Gas Fees](https://www.zero.xyz/c/orbit-chain-reads-evm-gas-fees-a0c55ae1/llms.txt): $0.001/call via x402. Returns live EIP-1559 gas fee estimates (slow/standard/fast) for Base, Ethereum, Arbitrum, Optimism, or Polygon, including next base fee, gas price, and priority fees in gwei.
- [Orbit Chain Reads: ENS Name Resolution](https://www.zero.xyz/c/orbit-chain-reads-ens-name-resolution-25066227/llms.txt): $0.001/call via x402. Resolves ENS names to Ethereum addresses (and vice versa), including *.base.eth via CCIP, plus avatar/URL/Twitter/GitHub text records
- [Orbit Chain Reads: ERC-20 Token Metadata](https://www.zero.xyz/c/orbit-chain-reads-erc-20-token-metadata-0b4c5626/llms.txt): $0.001/call via x402. Fetches on-chain ERC-20 token metadata (name, symbol, decimals, total supply, bytecode size, optional holder balance) from Base, Ethereum, Arbitrum, Optimism, or Polygon.

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)