OneSource ENS Resolver

x402

OneSource ENS Resolver is a paid API for AI agents from skills.onesource.io, paid per call via x402, $0.005000/call, status unknown (last checked 2026-09-13).

Resolves a .eth ENS name to its Ethereum address, or an Ethereum address to its primary .eth ENS name, via live eth_call on multiple networks

Price / call$0.005000

Seller volume →—

Success—

StatusUnknown

How this service works

ENS resolve — turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC

Output

Returns the resolved Ethereum address (when given a .eth name) or the primary .eth ENS name (when given an 0x address), including chain-related identity info from live on-chain eth_call resolution.

Example use cases

Example prompt

“What Ethereum address does vitalik.eth resolve to on the Ethereum mainnet? And while you're at it, what's the primary ENS name for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?”

Technical details

Endpoint

GEThttps://skills.onesource.io/api/chain/ens/:address

When to prefer

Use this endpoint when you need real-time, on-chain ENS resolution (not cached) for either forward (.eth→address) or reverse (address→.eth) lookups, especially when supporting multiple networks including Ethereum mainnet, Base, Sepolia, Avalanche, and MegaETH. Prefer this over general-purpose blockchain APIs when you need a simple, dedicated ENS resolution call without additional overhead.

Side effects

ENS name not registered or has no resolver — returns null or empty address
Address has no primary ENS name set — returns empty result
Invalid address format (not 0x + 40 hex chars) — schema validation error
Unsupported network specified — enum validation error
RPC timeout or network congestion — upstream error
Name exists but points to zero address — returns 0x000...000

Input

{
  "address": "vitalik.eth",
  "network": "ethereum"
}

Output

{
  "data": {
    "name": "vitalik.eth",
    "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
    "resolver": "0x231b0ee14048e9dccd1d247744d114a4eb5e8e63",
    "is_forward": true,
    "is_reverse": false
  },
  "meta": {
    "endpoint": "/api/chain/ens/vitalik.eth",
    "request_id": "c191c51ea57c359f"
  }
}

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How this service works

ENS resolve — turn a .eth name into an address, or an address into its primary .eth name, via eth_call on OneSource live Ethereum RPC

Output

Returns the resolved Ethereum address (when given a .eth name) or the primary .eth ENS name (when given an 0x address), including chain-related identity info from live on-chain eth_call resolution.

Technical details

Endpoint

GEThttps://skills.onesource.io/api/chain/ens/:address

When to prefer

Side effects

ENS name not registered or has no resolver — returns null or empty address
Address has no primary ENS name set — returns empty result
Invalid address format (not 0x + 40 hex chars) — schema validation error
Unsupported network specified — enum validation error
RPC timeout or network congestion — upstream error
Name exists but points to zero address — returns 0x000...000

Input

{
  "address": "vitalik.eth",
  "network": "ethereum"
}

Output

{
  "data": {
    "name": "vitalik.eth",
    "address": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
    "resolver": "0x231b0ee14048e9dccd1d247744d114a4eb5e8e63",
    "is_forward": true,
    "is_reverse": false
  },
  "meta": {
    "endpoint": "/api/chain/ens/vitalik.eth",
    "request_id": "c191c51ea57c359f"
  }
}