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x402 Bazaar ENS Resolver
x402
x402 Bazaar ENS Resolver is a paid API for AI agents from api.relai.fi, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Resolves Ethereum Name Service (ENS) names to addresses (forward) or addresses to ENS names (reverse) on Ethereum mainnet, paid via x402 micropayment.
Price / call$0.01
Success—
StatusUnknown
How this service works
Forward + reverse ENS resolution on Ethereum mainnet: turn vitalik.eth into an address, or an address into its primary ENS name. Complements the Basename resolver for Base. Paid via x402: $0.005 in USDC on Base (eip155:8453) to 0x973a31858f4d2125f48c880542da11a2796f12d6. Returns 402 with payment requirements; pay and retry.
Output
Returns the resolved Ethereum address for a given ENS name (forward resolution), or the primary ENS name associated with a given Ethereum address (reverse resolution), sourced from Ethereum mainnet ENS registry.
Example use cases
Example prompt
“What Ethereum address does vitalik.eth resolve to? Also, can you do the reverse and tell me the primary ENS name for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?”
Technical details
Endpoint
POSThttps://api.relai.fi/relay/1782567677091/api/x402/ens-resolve?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to resolve ENS names on Ethereum mainnet specifically. Prefer this over the Basename resolver when dealing with .eth names (not .base.eth or Coinbase Basenames). Ideal for identifying wallets by human-readable names or enriching address data with ENS identity in any Ethereum-focused application.
Side effects
- ENS name not registered or expired — returns null or error
- Address has no primary ENS name set — returns null
- Invalid ENS name format — returns validation error
- Invalid Ethereum address format — returns bad request error
- Payment not provided or insufficient — returns HTTP 402 with payment requirements
- Network or RPC issues querying Ethereum mainnet — returns service error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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