# Services from rockndefi.xyz:8443 on Zero

> rockndefi.xyz:8443 serves 8 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/rockndefi.xyz%3A8443
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/rockndefi.xyz%3A8443/health.json

## Services

- [x402 Web Probe – Domain Info (US Central, St. Louis)](https://www.zero.xyz/c/x402-web-probe-domain-info-us-central-st-louis-b714ae9e/llms.txt): $0.002/call via x402. Performs DNS, TLS certificate, and RDAP/WHOIS lookups for a given domain, returning structured uptime and registration metadata, paid per-call via USDC on Base.
- [ENS Name Lookup (rockndefi.xyz)](https://www.zero.xyz/c/ens-name-lookup-rockndefi-xyz-697c40e6/llms.txt): $0.002/call via x402. Resolves an ENS name to its Ethereum address (or performs reverse lookup from address to ENS name), paid per-call via USDC on Base using x402.
- [x402 Web Probe – US Central (St. Louis)](https://www.zero.xyz/c/x402-web-probe-us-central-st-louis-90915683/llms.txt): $0.001/call via x402. Checks website uptime, HTTP status, TLS certificate validity, and latency from US Central (St. Louis), returning structured JSON results; pay-per-call via USDC on Base.
- [x402 Web Probe – Fetch to Markdown (US Central, St. Louis)](https://www.zero.xyz/c/x402-web-probe-fetch-to-markdown-us-central-st-louis-aea5ce80/llms.txt): $0.003/call via x402. Fetches a public URL from the US Central (St. Louis) region and returns its rendered content as Markdown, along with HTTP status, title, and TLS/latency data.
- [ERC-20 Token Balance Lookup (On-Chain)](https://www.zero.xyz/c/erc-20-token-balance-lookup-on-chain-ddf6fad3/llms.txt): $0.002/call via x402. Returns the ERC-20 token balance for a given wallet address on Base or Ethereum, including raw amount, formatted balance, symbol, and decimals.
- [EVM Chain Balance Lookup (rockndefi.xyz)](https://www.zero.xyz/c/evm-chain-balance-lookup-rockndefi-xyz-85085265/llms.txt): $0.002/call via x402. Fetches the native token balance (ETH/ETH-equivalent) and nonce for a given EVM address on Base or Ethereum, paid per-call via USDC on Base.
- [x402 Web Probe – US Central (St. Louis) – Meta Endpoint](https://www.zero.xyz/c/x402-web-probe-us-central-st-louis-meta-endpoint-f55f15c5/llms.txt): $0.002/call via x402. Fetches a public webpage from US Central (St. Louis) and returns structured metadata including title, headings, links, Open Graph tags, and description as JSON.
- [x402 Web Probe – Blockchain Transaction Lookup (US Central)](https://www.zero.xyz/c/x402-web-probe-blockchain-transaction-lookup-us-central-8d96bd32/llms.txt): $0.002/call via x402. Fetches on-chain transaction details (status, gas, value, confirmations) for a given transaction hash on Base or Ethereum, paid per-call via x402/USDC.

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)