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ENS Name & Address Lookup
x402
ENS Name & Address Lookup is a paid API for AI agents from x402-gateway.blackwoodstate8.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-23).
Resolves an ENS name to an Ethereum address (or reverse-resolves an address to its primary ENS name) and returns avatar, profile text records, and metadata in one call.
Price / call$0.003
Success—
StatusUnknown
How this service works
Use when you need to resolve an ENS name to an address, reverse-resolve an address to its ENS name, or read an ENS avatar and profile records. Do not use for registering or renewing names, or non-ENS naming such as Solana SNS. Returns JSON with an ENS lookup on Ethereum in one call: the address of a name, the verified primary name of an address (reverse), the avatar and text records such as url, twitter and github for 0.005 USDC per call. Typical response time 2000 ms (p95). Category: Data.
Output
Returns a JSON object containing: the resolved Ethereum address (for forward lookups), the verified primary ENS name (for reverse lookups), the avatar content hash and rendered avatar URL, requested text records (url, com.twitter, com.github, email, description, etc.), the resolver contract address, the Ethereum chain identifier, and the block number at which the data was fetched. Also includes a suggested next-call hint for chaining queries.
Example use cases
Resolve ENS name to wallet address
“What Ethereum address does vitalik.eth resolve to? Also grab any avatar and social profile links attached to it.”
Reverse-resolve wallet address to ENS name
“Can you find the primary ENS name and profile for the wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?”
Fetch ENS profile for identity enrichment
“I have the ENS name brantly.eth — can you pull its full profile including avatar, URL, Twitter handle, and GitHub username?”
Technical details
Endpoint
POSThttps://x402-gateway.blackwoodstate8.workers.dev/v1/ens-lookup?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to resolve ENS names to Ethereum addresses, reverse-resolve addresses to human-readable ENS names, or fetch ENS profile data (avatar, social links, URLs) in a single low-latency call. Do not use for registering or renewing ENS names, for Solana SNS or other non-Ethereum naming systems, or for non-ENS Ethereum domain systems like Unstoppable Domains.
Side effects
- ENS name not found or not registered — returns null address
- Address has no reverse record set — primaryName is null
- Text records requested but not set on the name — returns empty or null values
- Both name and address provided simultaneously — returns validation error
- Invalid Ethereum address format — schema validation error
- ENS name shorter than 3 characters — schema validation error
- Upstream Ethereum RPC timeout — may return 5xx after ~2s
- Payment not attached or insufficient — returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"name": "vitalik.eth",
"chain": "ethereum",
"texts": {
"url": "https://vitalik.ca",
"email": null,
"avatar": "https://euc.li/vitalik.eth",
"com.github": "vbuterin",
"com.twitter": "VitalikButerin",
"description": "mi pinxe lo crino tcati"
},
"avatar": "https://euc.li/vitalik.eth",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"resolver": "0x231b0Ee14048e9dCcD1d247744d114a4EB5E8E63",
"avatarUrl": "https://euc.li/vitalik.eth",
"blockNumber": 26216461,
"primaryName": "vitalik.eth"
}
}Tags
x402
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