x402 On-Chain Wallet Audit

x402

x402 On-Chain Wallet Audit is a paid API for AI agents from x402-audit.tatschluizguilherme.workers.dev, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-02).

Returns native ETH balances, gas estimates, and recent transactions for a wallet address across Optimism, Base, and Ethereum Mainnet in a single call

Price / call$0.25

Seller volume →—

Success—

StatusUnknown

How this service works

Pay-per-call on-chain API for AI agents and developers: wallet audits, token safety audits (honeypot detection), live gas prices, token prices, transaction receipts, balances, ENS resolution, block data, ERC-20 allowances, transaction simulation, swap quotes and multicall batches — all computed on-chain via public RPCs (no external market API). Pay per request in USDC on Base via the x402 exact scheme (EIP-3009 transferWithAuthorization). No API key, no signup, no subscription.

Output

A structured JSON response containing native ETH balances per chain (Optimism, Base, Ethereum Mainnet), ERC-20 token balances, current gas prices on each network, and a list of recent transactions (hashes, block numbers, values, status) for the queried wallet address.

Example use cases

Multi-chain portfolio overview

“Pull a full audit of wallet 0x742d35Cc6634C0532925a3b8D4C9b5f1e2A8d3e7 — I want to see its ETH and token balances, recent txs, and gas costs across Base, Optimism, and Ethereum Mainnet.”

Due diligence on a counterparty wallet

“Before I send funds, can you audit the wallet 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 and show me its balances and recent transaction history on Base and Optimism so I can verify it's legitimate?”

Debugging a user's stuck transaction

“A user is claiming they sent ETH but nothing arrived — can you audit their wallet 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD and show me recent transactions and current gas prices on Mainnet, Base, and Optimism to figure out what happened?”

Technical details

Endpoint

GEThttps://x402-audit.tatschluizguilherme.workers.dev/audit?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a holistic, multi-chain snapshot of a wallet in a single API call — balances, gas, and recent activity across OP, Base, and Mainnet simultaneously. Prefer this over individual balance or transaction endpoints when the use case requires a comprehensive audit rather than a single-chain point query.

Side effects

Invalid or malformed wallet address returns 400 error
RPC node timeout on one or more chains may cause partial results or 504
Address with no on-chain activity returns empty transaction list
Unsupported chain identifier returns validation error
Payment failure (x402) blocks request before execution

Output

Schema · Response

{
  "type": "json",
  "example": {
    "chains": {
      "op": {
        "eth": "0.1",
        "usdc": "100",
        "sUsdc": "50",
        "recentTxs": [],
        "gasSpentUsd": 1.2
      }
    },
    "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
  }
}

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