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Blockscout BENS Address Lookup
x402
Blockscout BENS Address Lookup is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-15).
Look up blockchain name service (ENS and other protocol) registrations associated with a given address across multiple chains
Price / call$0.015
Success—
StatusUnknown
How this service works
Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data
Output
Returns a paginated list of blockchain name service items, each including the domain name, owner address hash and ENS name, resolved address, wrapped owner, protocol metadata (id, title, description, icon URL, docs URL, supported TLDs), registration date, expiry date, and a dApp URL for the name service. Also includes next_page_params for pagination.
Example use cases
Wallet identity resolution for DeFi dashboard
“What ENS names and blockchain domains are registered to or resolve to the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045? Show me all name service protocols, not just ENS.”
Cross-chain name service audit
“Look up all active blockchain domain registrations owned by 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B across every chain Blockscout supports — I want to see expiry dates and which protocols they're registered on.”
Reverse ENS lookup for address labeling
“I have the wallet address 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 — can you find any ENS or other blockchain name service names that resolve to it so I can label it in my portfolio tracker?”
Technical details
Endpoint
GEThttps://api.blockscout.com/services/bens/api/v1/addresses:lookupWhen to prefer
Choose this endpoint when you need to resolve or enumerate blockchain name service registrations (ENS and others) tied to a specific wallet address, especially across multiple chains simultaneously. Prefer it over generic ENS resolvers when you need multichain coverage, protocol metadata, or paginated results for addresses with many registrations.
Side effects
- Invalid or malformed address returns empty items array or 400 error
- Unknown chain_id yields no results rather than an error
- Unsupported protocol filter returns empty list
- Pagination token mismatch or expiry causes incomplete result sets
- Rate limiting or payment failure (x402) returns 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"items": [
{
"id": "string",
"name": "string",
"owner": {
"hash": "string",
"ens_domain_name": "string"
},
"protocol": {
"id": "string",
"title": "string",
"docs_url": "string",
"icon_url": "string",
"tld_list": [
"string"
],
"short_name": "string",
"description": "string",
"deployment_blockscout_base_url": "string"
},
"expiry_date": "string",
"wrapped_owner": {
"hash": "string",
"ens_domain_name": "string"
},
"resolved_address": {
"hash": "string",
"ens_domain_name": "string"
},
"protocol_dapp_url": "string",
"registration_date": "string",
"protocol_dapp_logo": "string"
}
],
"next_page_params": {
"page_size": 0,
"page_token": "string"
}
}
}Tags
x402
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