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ChainVerdict Preflight Address Check API
x402
ChainVerdict Preflight Address Check API is a paid API for AI agents from chainverdict.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Checks a blockchain payee address before sending funds to assess trustworthiness or risk
Price / call$0.01
Success—
StatusUnknown
How this service works
x402 v2 pay-per-call. Unpaid requests receive HTTP 402 with payment requirements.
Output
Returns a verdict or risk assessment for the given blockchain address, indicating whether the address is considered safe, suspicious, or flagged — helping the caller decide whether to proceed with a payment or transaction.
Example use cases
Screen payee before crypto transfer
“I'm about to send 500 USDC to 0xAbCd1234EfGh5678IjKl9012MnOp3456QrSt7890 — can you do a preflight check on that address to make sure it's not flagged for fraud or scams?”
Validate contractor wallet before payout
“We're onboarding a new contractor who gave us the wallet address 0x9999aaaabbbbcccc1111222233334444deadbeef — can you verify it with ChainVerdict before we process their first payment?”
Audit saved payee addresses for risk
“I have a payee address 0xDEAD0000BEEF1111CAFE2222BABE3333FADE4444 saved in my system from a few months ago — can you run it through a preflight check to see if its verdict has changed?”
Technical details
Endpoint
GEThttps://chainverdict.xyz/v1/preflight/%7Baddr%7DWhen to prefer
Use this endpoint when you need a quick, pay-per-call preflight risk check on a specific blockchain wallet address before executing a payment or transfer. It is ideal for agentic payment workflows that need to gate transactions behind an address reputation check without committing to a subscription. Prefer this over manual on-chain inspection when you need a structured, actionable verdict rather than raw transaction history.
Side effects
- Invalid or malformed blockchain address returns an error response
- Unpaid request returns HTTP 402 with x402 payment requirements
- Address not found in database may return unknown/neutral verdict
- Network timeout if the chain analysis backend is slow
- Non-existent or zero address may return an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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