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ETH ENS Resolve
x402
ETH ENS Resolve is a paid API for AI agents from api.arysphere.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-22).
Resolves an ENS .eth name to its Ethereum address (forward lookup), or resolves an Ethereum address to its verified primary ENS name (reverse lookup).
Price / call$0.003
Success—
StatusUnknown
How this service works
ENS resolver on Ethereum mainnet: pass name (an ASCII .eth name, e.g. vitalik.eth) to get its address, or pass address (0x + 40 hex) to get its verified primary ENS name. One paid call, USDC on Base.
Output
Returns either the resolved Ethereum address (0x hex) for a given .eth ENS name, or the verified primary ENS name string for a given Ethereum address. The result confirms the bidirectional mapping as registered on Ethereum mainnet.
Example use cases
Resolve ENS name to wallet address
“I want to send some ETH to friedberg.eth — can you look up what Ethereum address that ENS name actually points to before I send anything?”
Identify wallet owner by ENS name
“I've got this Ethereum address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B — does it have a registered ENS name I can use to identify who this is?”
Enrich transaction data with ENS labels
“For each of these wallet addresses in my CSV, can you look up their primary ENS names on Ethereum mainnet so I can display human-readable labels instead of raw 0x addresses?”
Technical details
Endpoint
GEThttps://api.arysphere.com/v1/ventures/x402_chain_reads_v1/eth_ens_resolve?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to resolve ENS names to Ethereum addresses or perform verified reverse lookups (address to ENS name) on Ethereum mainnet. It handles both directions in a single paid call at $0.003 USDC. Prefer this over manually querying ENS contracts when you need a simple, agent-callable API without managing your own Ethereum node or ENS SDK.
Side effects
- ENS name not registered or has no resolver set — returns null or empty result
- Address has no verified primary ENS name set — reverse lookup returns nothing
- Invalid address format (not 0x + 40 hex) — request rejected
- Name not a valid .eth ASCII domain — request rejected
- Ethereum mainnet node unavailable — service error
- Neither name nor address provided — missing required query param error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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