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ENS Name Resolver
x402
ENS Name Resolver is a paid API for AI agents from biosfera.46-62-215-147.sslip.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-28).
Resolves ENS names to Ethereum addresses and Ethereum addresses to their primary ENS names by reading the live ENS registry on Ethereum mainnet.
Price / call$0.002
Success—
StatusUnknown
How this service works
Use when you need to turn an ENS name (like vitalik.eth) into an Ethereum address, or an address into its primary ENS name. Reads the ENS registry and resolver on Ethereum mainnet live. Returns null when nothing is set.
Output
Returns the resolved Ethereum address (0x hex string) when given an ENS name, or the primary ENS name string when given an address. Returns null if no ENS record is set for the input. Data is read live from the ENS registry and resolver contracts on Ethereum mainnet.
Example use cases
Resolve ENS name before sending funds
“Before I send ETH, can you look up the actual wallet address for nick.eth so I know exactly where the funds will go?”
Identify who owns a wallet address
“I have this address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 — does it have a primary ENS name registered on Ethereum mainnet?”
Validate ENS address in dApp onboarding
“A user typed 'ens.eth' as their wallet identifier — can you resolve that ENS name to its actual 0x address so I can verify it's a real registered name?”
Technical details
Endpoint
GEThttps://biosfera.46-62-215-147.sslip.io/o/ens-resolve?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a live, authoritative resolution of an ENS name to an Ethereum address or vice versa directly from the Ethereum mainnet ENS registry. Prefer this over cached or third-party ENS resolvers when freshness matters — e.g., before sending a transaction, verifying identity, or onboarding a user. Ideal for agents working in Web3 contexts where wallet identity is expressed as a human-readable .eth name.
Side effects
- Returns null when the ENS name has no resolver or address record set
- Returns null when the address has no primary ENS name set
- Returns an error if the ENS name format is invalid (must match ^[a-z0-9.-]{3,255}$)
- Returns an error if the address format is invalid (must match ^0x[0-9a-fA-F]{40}$)
- May time out or fail if Ethereum mainnet RPC is temporarily unavailable
- Payment failure if USDC balance is insufficient for the $0.002 per-call fee
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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