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Ethereum Address Safety Checker
x402
Ethereum Address Safety Checker is a paid API for AI agents from true402.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Checks whether an Ethereum address (EOA or contract) is safe or flagged as risky/malicious.
Price / call$0.005
Success—
StatusUnknown
How this service works
The machine-native marketplace. Wallet = identity. Pay per call with HTTP 402.
Output
A JSON object describing the safety status of the queried Ethereum address, including risk flags, classification (EOA or contract), and any known malicious activity or exploit associations.
Example use cases
Pre-transfer wallet safety check
“Before I send 2 ETH to 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045, can you verify that address is safe and not flagged for any malicious activity?”
DeFi contract risk assessment
“I want to interact with this smart contract at 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D — can you run a safety check on it to make sure it's not a known scam or exploit contract?”
Incoming payment source verification
“Someone just sent me crypto from 0x1da5821544e25c636c1417ba96ade4Cf6D2f9B5A — can you check if that Ethereum address has any history of fraud or hacking so I know if I should be worried?”
Technical details
Endpoint
POSThttps://true402.dev/api/v1/ethereum/address-safetyWhen to prefer
Use this endpoint when you need a quick, per-call safety check on an Ethereum address before executing a transaction, interacting with a smart contract, or accepting funds — especially in automated agent workflows where wallet-native micropayments via x402 are already in use and no subscription is needed.
Side effects
- Invalid or malformed Ethereum address (non-0x format) returns an error
- Address not found or zero-data address may return minimal or inconclusive results
- Only Ethereum mainnet is supported; passing a different chain identifier may return an error or default behavior
- Payment failure via HTTP 402 if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | Chain to check; only 'ethereum' is supported on this endpoint (default) |
| addressrequired | string | Any address (0x…) on Ethereum — an EOA or a contract |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| risk | string | low | medium | high | critical |
| type | string | eoa | contract |
| flags | array | risk flags raised |
| score | number | 0–100 structural safety score |
| address | string | |
| txCount | number | |
| contract | object | null for an EOA; else { isToken, erc20, ownership, mintable, isProxy, implementation } |
| ethBalance | string | |
| usdcBalance | string |
Tags
x402
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