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ENS Name Resolution via OneSource Ethereum RPC
x402
ENS Name Resolution via OneSource Ethereum RPC is a paid API for AI agents from skills.onesource.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Bidirectionally resolves ENS names to Ethereum addresses and Ethereum addresses to their primary ENS names using live eth_call on supported networks
Price / call$0.005
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 for a given .eth name, or the primary ENS name associated with a given 0x address, along with chain-related metadata. Response is derived from a live eth_call against the ENS registry on the specified network.
Example use cases
Verify wallet identity from ENS domain
“I have a user who gave me their vitalik.eth name, but I need to confirm their actual Ethereum address before we process any transactions. Can you resolve that for me?”
Reverse lookup wallet to ENS name
“Someone just sent me a transaction from 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 and I want to know if they have an ENS name associated with that address. What should I call them?”
Cross-chain ENS resolution lookup
“We're expanding to Base network and need to resolve some of our key partner ENS names there. Can you check what addresses our registered users' .eth names point to on Base?”
Technical details
Endpoint
GEThttps://skills.onesource.io/api/chain/ens/:inputWhen to prefer
Use this endpoint when you need real-time, live on-chain ENS resolution without running your own Ethereum node. Ideal for agents that need to translate human-readable .eth names to addresses (or vice versa) as part of a wallet lookup, transaction preparation, or identity enrichment flow. Supports multiple networks including mainnet, Sepolia, Base, and Avalanche, making it versatile for multi-chain workflows.
Side effects
- ENS name not registered or has no resolver — returns null or empty address
- Address has no primary ENS name set — returns empty or null name
- Invalid input format (not a valid 0x address or .eth name) — 400 error
- Network not supported or RPC unavailable — 5xx error
- ENS resolution points to zero address — treated as unregistered
Input
{
"input": "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": "84c5d26a2ffb5de2"
}
}Tags
x402
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