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Contract Address Inspector
x402
Contract Address Inspector is a paid API for AI agents from api.api-agent-ia.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-23).
Checks whether a given blockchain address is a smart contract (rather than an externally-owned account)
Price / call$0.003
Success—
StatusUnknown
How this service works
Is this address a wallet or a smart contract? Returns whether it has code on Base, its bytecode size, ETH balance and nonce ($0.003 per call).
Output
Returns a JSON object containing the queried address and a boolean field 'est_contrat' (true if the address is a smart contract, false if it is an externally-owned account).
Example use cases
DeFi token contract validation
“Before I interact with this DeFi protocol, can you confirm that 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 is actually a smart contract and not just someone's wallet?”
Scam address screening
“I got sent this address 0xdAC17F958D2ee523a2206206994597C13D831ec7 — can you check if it's a real contract or just an EOA before I send funds?”
NFT contract verification
“I want to make sure the NFT collection at 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D is actually a deployed contract — can you verify that for me?”
Technical details
Endpoint
GEThttps://api.api-agent-ia.ch/contrat?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, cheap binary answer on whether a blockchain address is a smart contract or a regular wallet. Ideal for pre-flight checks before interacting with an address, screening untrusted addresses, or validating contract deployments without running a full node.
Side effects
- Missing or malformed 'adresse' query parameter returns an error
- Invalid non-hex address string causes a lookup failure
- Network or RPC issues may cause temporary unavailability
- Address not found on the target chain returns an error or false result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"nonce": 1,
"reseau": "base",
"adresse": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"solde_eth": "0.009800646158085843",
"est_contrat": true,
"taille_bytecode": 1852
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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