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Wallet Approval Audit — Ethereum Contract ABI Fetcher
x402
Wallet Approval Audit — Ethereum Contract ABI Fetcher is a paid API for AI agents from ari001.tailb4ac3a.ts.net, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-10).
Returns the verified ABI of an Ethereum smart contract as JSON, enabling wallet approval auditing and contract interaction analysis.
Price / call$0.003
Success—
StatusUnknown
How this service works
Returns the ABI of a verified Ethereum smart contract as JSON, for use in wallet approval auditing. Takes a contract address (0x + 40 hex). Query: address (contract, 0x + 40 hex).
Output
Returns a JSON object with: ok (boolean success flag), a result object containing the contract ABI as a JSON array (or null if unverified), verification status (boolean), proxy detection (isProxy boolean, proxy details object, implementation address), the contract address, and optionally a match string. On failure, an error string is included.
Example use cases
Token approval safety check
“Before I approve this contract in MetaMask, can you fetch the ABI for 0xdAC17F958D2ee523a2206206994597C13D831ec7 and tell me what functions it has — I want to make sure it's a verified contract and not something sketchy.”
DeFi protocol contract inspection
“I'm about to interact with the Uniswap V3 router at 0xE592427A0AEce92De3Edee1F18E0157C05861564 — can you get its verified ABI so I know what functions are available and whether it's a proxy contract?”
Wallet approval audit for revocation
“I have a list of contracts I've approved in my wallet and I want to start with 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D — can you fetch its ABI and check if it's verified so I can decide whether to revoke my approval?”
Technical details
Endpoint
GEThttps://ari001.tailb4ac3a.ts.net/v1/ventures/ethereum_contract_abi_service/wallet_approval_audit?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the ABI of a specific Ethereum mainnet smart contract for wallet approval auditing, contract interaction planning, or proxy detection. Prefer this over generic Etherscan API wrappers when you need a structured, agent-friendly response that includes proxy resolution and verification status in a single call. Best suited for security-conscious workflows where you want to inspect what a contract does before approving or signing a transaction.
Side effects
- Invalid contract address format (not 0x + 40 hex) — request rejected
- Contract not verified on Etherscan — returns verified: false with null ABI
- Contract address does not exist on Ethereum mainnet — ok: false with error
- Network or RPC timeout — ok: false with error message
- Payment failure via x402 — request not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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