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ENS & Basename Resolver with Verification
x402
ENS & Basename Resolver with Verification is a paid API for AI agents from kr-x402-mvp.kgy5612.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Resolves an ENS name or Basename to an Ethereum address (or reverse-lookup an address to name), with forward/reverse verification and safe-to-send confirmation
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.
Output
Returns the resolved Ethereum address, the ENS/Basename, direction of lookup (forward or reverse), whether forward-reverse verification matches (verified boolean), safe-to-send flag, ENS profile records (avatar, URL, etc.), whether the address is a contract on Base, and suggested next API calls for deeper wallet/contract analysis.
Example use cases
Pre-send address safety check
“Before I send ETH to jesse.base.eth, can you resolve that Basename to its address and verify that forward and reverse resolution both match so I know it's legit?”
Reverse lookup wallet identity
“I have the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — can you find out what ENS name it belongs to and whether the reverse resolution is verified?”
Fetch ENS profile records
“Look up vitalik.eth and tell me its resolved address plus any profile records attached to it like avatar or website URL.”
Technical details
Endpoint
GEThttps://kr-x402-mvp.kgy5612.workers.dev/crypto/ens?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs to resolve a human-readable ENS or Basename to an Ethereum address (or vice versa) before executing a transfer, displaying wallet identity, or enriching onchain data with named identities. Prefer this over generic ENS libraries when you need no-API-key pay-per-call access with built-in forward/reverse verification and safe-to-send confirmation in one response.
Side effects
- Name not found — ENS name does not exist or has expired
- Address has no reverse record set — reverse lookup returns null name
- Forward/reverse mismatch — name resolves to address but reverse does not point back (verified: false)
- Invalid address format — address doesn't match 0x[40 hex chars] pattern
- Name too long — exceeds 255 character limit
- RPC timeout — upstream ENS resolver unavailable
- Payment failure — x402 USDC payment on Base not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "vitalik.eth",
"next": [
"/crypto/contract-info?address=0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"/crypto/wallet-snapshot?wallet=0xd8da6bf26964af9d7eed9e03e53415d37aa96045"
],
"input": "vitalik.eth",
"address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"records": {
"url": "https://vitalik.ca",
"avatar": "eip155:1/erc1155:0xb32979486938aa9694bfc898f35dbed459f44424/10063"
},
"summary": "vitalik.eth -> 0xd8da6bf26964af9d7eed9e03e53415d37aa96045 (reverse matches: verified)",
"verified": true,
"direction": "forward",
"checked_at": "2026-10-30T05:40:00Z",
"is_basename": false,
"reverse_name": "vitalik.eth",
"safe_to_send": true,
"contract_check": {
"chain": "base",
"is_contract": false,
"eip7702_delegated": false
}
}
}Tags
x402
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