# Services from automaton-tx-explainer.vercel.app on Zero

> automaton-tx-explainer.vercel.app serves 17 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/automaton-tx-explainer.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/automaton-tx-explainer.vercel.app/health.json

## Services

- [Calldata Decoder + Signing Warnings](https://www.zero.xyz/c/calldata-decoder-signing-warnings-dcb0a9b1/llms.txt): $0.005/call via x402. Decodes raw EVM hex calldata into human-readable function signatures and arguments, with plain-English risk warnings for dangerous approvals and unlimited token grants.
- [Ethereum Address Inspector](https://www.zero.xyz/c/ethereum-address-inspector-324e57d0/llms.txt): $0.005/call via x402. Inspect any Ethereum address to determine its type (EOA, contract, or EIP-7702 delegated), ETH balance, nonce, proxy implementation details, and ERC-20 token metadata.
- [Multi-chain Gas Snapshot](https://www.zero.xyz/c/multi-chain-gas-snapshot-28180902/llms.txt): $0.005/call via x402. Returns live gas prices, base fees, block utilization, and estimated transfer costs for Base, Ethereum, and BNB Smart Chain.
- [Base Address Inspector](https://www.zero.xyz/c/base-address-inspector-05e5c419/llms.txt): $0.005/call via x402. Inspects a Base mainnet address and returns its type, token standards, proxy details, ETH balance, and a human-readable summary.
- [Base Contract Risk Heuristics](https://www.zero.xyz/c/base-contract-risk-heuristics-f4480f1e/llms.txt): $0.01/call via x402. Returns heuristic risk flags for a Base network smart contract using free public data, including Sourcify verification status, proxy/admin detection, owner type, dangerous function selectors, and bytecode size.
- [Base Token Approval Check](https://www.zero.xyz/c/base-token-approval-check-1373f7f1/llms.txt): $0.005/call via x402. Checks all ERC-20 token approvals (allowances) granted by a given Base mainnet wallet address, identifying unlimited and non-zero approvals
- [Base Tx Explainer](https://www.zero.xyz/c/base-tx-explainer-ee1b1976/llms.txt): $0.01/call via x402. Returns a human-readable explanation of a Base mainnet transaction, including status, method called, token transfers, and fee paid.
- [BNB Smart Chain Address Inspector](https://www.zero.xyz/c/bnb-smart-chain-address-inspector-216041ee/llms.txt): $0.005/call via x402. Inspects a BNB Smart Chain address to determine type (EOA/contract/EIP-7702), BNB balance, nonce, proxy implementation, and ERC-20 token metadata.
- [BNB Smart Chain Contract Risk Heuristics](https://www.zero.xyz/c/bnb-smart-chain-contract-risk-heuristics-547d146e/llms.txt): $0.01/call via x402. Returns heuristic risk flags for a BNB Smart Chain smart contract address, including Sourcify verification status, proxy/admin patterns, owner type, dangerous selectors, and bytecode size.
- [BNB Smart Chain Token Approval Check](https://www.zero.xyz/c/bnb-smart-chain-token-approval-check-5ffe7c89/llms.txt): $0.005/call via x402. Returns ERC-20 token allowances for a BNB Smart Chain wallet address across 8 major tokens and common DeFi spenders, flagging unlimited approvals.
- [BNB Smart Chain Tx Explainer](https://www.zero.xyz/c/bnb-smart-chain-tx-explainer-42d3c657/llms.txt): $0.01/call via x402. Explains a BNB Smart Chain transaction by returning its status, fee, decoded method with arguments, and ERC-20 token transfers with symbols and human-readable amounts.
- [ENS / Basename Resolver](https://www.zero.xyz/c/ens-basename-resolver-527a9b55/llms.txt): $0.005/call via x402. Resolve an ENS name or Basename to an Ethereum address and text records (URL, Twitter, GitHub), or reverse-resolve an address to its primary ENS/Basename.
- [Ethereum Contract Risk Heuristics](https://www.zero.xyz/c/ethereum-contract-risk-heuristics-569fd637/llms.txt): $0.01/call via x402. Returns heuristic risk flags for an Ethereum smart contract address using free public data, including Sourcify verification status, proxy/admin detection, owner type, dangerous selectors, and bytecode size.
- [Ethereum Token Approval Check](https://www.zero.xyz/c/ethereum-token-approval-check-2ac6f519/llms.txt): $0.005/call via x402. Checks an Ethereum wallet's ERC-20 token allowances for 8 major tokens (USDC, USDT, WETH, DAI, etc.) to common DeFi spenders, flagging unlimited approvals.
- [Ethereum Transaction Explainer](https://www.zero.xyz/c/ethereum-transaction-explainer-36afda53/llms.txt): $0.01/call via x402. Explains an Ethereum transaction by returning its status, fee, decoded method name and arguments (via openchain signature DB), and ERC-20 token transfers with symbols and human-readable amounts.
- [Multi-chain Wallet Portfolio](https://www.zero.xyz/c/multi-chain-wallet-portfolio-c1fa40fb/llms.txt): $0.01/call via x402. Returns native token balances and major ERC-20 token balances for a wallet address across Base, Ethereum, and BNB Smart Chain simultaneously.
- [URL Safety Check](https://www.zero.xyz/c/url-safety-check-00c9248a/llms.txt): $0.005/call via x402. Checks a URL or hostname for phishing and scam indicators using blocklists, domain age, punycode detection, brand lookalike analysis, and HTTPS reachability.

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)