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x402 ENS Resolver
x402
x402 ENS Resolver is a paid API for AI agents from agentx402pay.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Resolves an ENS name to an Ethereum address, or reverse-resolves an EVM address to its primary ENS name
Price / call$0.01
Success—
StatusUnknown
How this service works
Resolve an ENS name to an address, or reverse-resolve an address to its primary ENS name
Output
Returns either the resolved Ethereum address for a given ENS name (forward lookup) or the primary ENS name associated with a given EVM address (reverse lookup). If no record is found, the response will indicate the name or address could not be resolved.
Example use cases
Resolve ENS name before payment
“Before I send funds, can you look up what wallet address ens-name.eth actually resolves to so I can verify it's correct?”
Identify wallet owner by ENS name
“I have the address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B — does it have a primary ENS name registered so I know who it belongs to?”
Enrich on-chain transaction data
“I'm building a report of recent transactions — can you reverse-resolve each of these wallet addresses to their ENS names so the report is human-readable?”
Technical details
Endpoint
GEThttps://agentx402pay.com/api/ens-resolve?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, pay-per-call ENS resolution without running your own node or maintaining an RPC connection. Ideal for agents that occasionally need to resolve ENS names or reverse-lookup addresses in the context of blockchain workflows, user identification, or transaction enrichment, without the overhead of a full Ethereum RPC setup.
Side effects
- ENS name not registered or has no resolver set — returns null or error
- Address has no primary ENS name set — returns null
- Invalid ENS name format — returns validation error
- Invalid EVM address format — returns bad request error
- ENS registry temporarily unreachable — returns upstream timeout
- Neither 'name' nor 'address' query param provided — returns missing parameter error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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