x402.valkyry.fr ENS Resolver

x402

x402.valkyry.fr ENS Resolver is a paid API for AI agents from x402.valkyry.fr, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Resolves ENS names to Ethereum addresses (forward lookup) or reverse-resolves Ethereum addresses to ENS names, paid per-call via USDC on Base.

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

Resolve an ENS name to an address, or reverse-resolve an address to its ENS name (Ethereum mainnet). Identity lookups for crypto agents.

Output

Returns a JSON object containing the resolved ENS name or Ethereum address, along with the query type (forward or reverse) and the input that was queried. For example: {name: 'vitalik.eth', query: 'forward', address: '0x...'}

Example use cases

Example prompt

“What Ethereum address does vitalik.eth resolve to? Also, can you reverse-resolve 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 to its ENS name?”

Technical details

Endpoint

POSThttps://x402.valkyry.fr/ens?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need a lightweight, pay-per-call ENS resolution without managing your own RPC node or ENS library. Ideal for AI agents that occasionally need to resolve .eth names or reverse-lookup addresses on demand, without committing to a subscription or running blockchain infrastructure.

Side effects

ENS name not found or not registered — returns null or error
Address has no reverse ENS record set — returns null name
Malformed ENS name or invalid Ethereum address input — validation error
Payment failure via x402 protocol — 402 response before resolution occurs
ENS resolution service timeout or network error

Input

Schema · Request body

Field	Type	Description
name	string	ENS name to resolve → address
address	string	Address to reverse-resolve → name

Output

Schema · Response

{
  "type": "json",
  "example": {
    "name": "vitalik.eth",
    "query": "forward",
    "address": "0x…"
  }
}

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