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NexusAPI Crypto Contract Verifier
x402
NexusAPI Crypto Contract Verifier is a paid API for AI agents from nexus-api-virid.vercel.app, paid per call via x402, $0.059076/call, status unknown (last checked 2026-09-15).
Verifies smart contract details or legitimacy on a blockchain given a contract address or identifier
Price / call$0.059076
Success—
StatusUnknown
How this service works
Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.
Output
Returns verification status and metadata about the queried smart contract, including whether the contract is verified, any flags indicating legitimacy or risk, and relevant contract details such as source code verification status or audit information.
Example use cases
DeFi protocol safety check
“Before I provide liquidity to this DeFi pool, can you verify the smart contract at 0xabcdef1234567890abcdef1234567890abcdef12 to make sure it's a verified and legitimate contract?”
Token contract validation before purchase
“I'm about to buy a new token but I want to make sure the contract 0x9876543210fedcba9876543210fedcba98765432 is verified and not a scam — can you check it?”
NFT mint contract audit
“Can you verify the smart contract behind this NFT project at address 0xdeadbeefdeadbeefdeadbeefdeadbeefdeadbeef so I know it's safe to mint from?”
Technical details
Endpoint
POSThttps://nexus-api-virid.vercel.app/api/crypto/contract/verifyWhen to prefer
Use this endpoint when you need a quick, pay-per-call contract verification without managing API keys, especially useful for AI agents operating autonomously in Web3 workflows that need to validate contract legitimacy before executing transactions.
Side effects
- Invalid or malformed contract address returns an error
- Contract not found on the queried chain returns empty or null result
- Network timeouts if blockchain node is unresponsive
- Unverified contracts may return partial data without source code confirmation
- Rate limiting or payment failure via x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Search query or input parameter |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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