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ETH Mainnet ENS Resolve
x402
ETH Mainnet ENS Resolve is a paid API for AI agents from api.arysphere.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).
Resolves an ENS .eth name to its Ethereum address (forward lookup) or verifies an Ethereum address to its ENS name (reverse lookup)
Price / call$0.005
Success—
StatusUnknown
Output
Returns either the resolved Ethereum address (0x-prefixed, 40 hex characters) for a forward ENS lookup, or the verified reverse ENS name (ASCII .eth string) for a reverse lookup, depending on which parameter was provided.
Example use cases
Forward resolve a .eth domain
“What is the Ethereum wallet address for uniswap.eth? Resolve it on Ethereum mainnet.”
Verify reverse ENS for a wallet
“Does the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 have a verified reverse ENS name? If so, what is it?”
Enrich user profile with ENS identity
“I have this Ethereum address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B — can you find out if it has an ENS name registered to it?”
Technical details
Endpoint
POSThttps://api.arysphere.com/v1/ventures/x402_eth_reads_v1/eth_mainnet_ens_resolve?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, single paid call to resolve or reverse-resolve an ENS name on Ethereum mainnet without running your own Ethereum node. Prefer it over generic Ethereum RPC endpoints when you want a clean REST interface that abstracts away raw eth_call mechanics. It is ideal for agents that need to enrich wallet addresses with human-readable ENS identities or validate that a .eth name maps to an expected address.
Side effects
- ENS name not registered or expired — returns null or empty result
- Address has no reverse ENS record set — returns null
- Invalid address format (not 0x + 40 hex) — schema validation error
- ENS name is not ASCII or not a .eth name — rejected by schema
- Network or RPC node outage on Ethereum mainnet — service unavailable
- Payment failure via x402/USDC — call not executed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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