# Services from verify.code402.dev on Zero

> verify.code402.dev serves 7 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/verify.code402.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/verify.code402.dev/health.json

## Services

- [code402 ERC-20 Token Chain Data](https://www.zero.xyz/c/code402-erc-20-token-chain-data-e1e59b8f/llms.txt): $0.5/call via x402. Fetches on-chain ERC-20 token data for a specific token contract and address on Ethereum, returning chain data with a signed receipt, paid per call via x402 on Base (USDC).
- [code402 Ethereum Address Balance Lookup](https://www.zero.xyz/c/code402-ethereum-address-balance-lookup-3ac7acc0/llms.txt): $0.5/call via x402. Fetches the on-chain ETH balance for a given Ethereum address, paid per call via x402 on Base (USDC).
- [code402 Ethereum Transaction Lookup](https://www.zero.xyz/c/code402-ethereum-transaction-lookup-7fe92e95/llms.txt): $0.5/call via x402. Retrieves on-chain data for a specific Ethereum transaction by its hash, paid per-call via x402 micropayments on Base (USDC).
- [code402 Ethereum Address Nonce Lookup](https://www.zero.xyz/c/code402-ethereum-address-nonce-lookup-3d512c0f/llms.txt): $0.5/call via x402. Fetches the current transaction nonce for a given Ethereum address via the code402 chain-data API, paid per call via x402 on Base USDC.
- [code402 ENS Name Resolution API](https://www.zero.xyz/c/code402-ens-name-resolution-api-d5c669f6/llms.txt): $0.5/call via x402. Resolves an Ethereum Name Service (ENS) name to its on-chain data via a paid-per-call Ethereum chain-data endpoint.
- [code402 Chain Data – Ethereum Block Number](https://www.zero.xyz/c/code402-chain-data-ethereum-block-number-125eef93/llms.txt): $0.005/call via x402. Returns the current (latest) Ethereum mainnet block height as a real-time lookup
- [code402 Compliance Bundle](https://www.zero.xyz/c/code402-compliance-bundle-b117f1a9/llms.txt): $0.005/call via x402. Runs multi-gate compliance verification combining IBAN validation, sanctions screening, and onchain address validation in a single call, returning XDR-1 signed receipts.

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)