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Blockscout BENS Batch Address Name Resolver
x402
Blockscout BENS Batch Address Name Resolver is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-10).
Resolves multiple blockchain addresses to their human-readable ENS-style names in a single batch call for a specified chain
Price / call$0.1
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 JSON object containing a 'names' map where each input blockchain address is mapped to its resolved human-readable name (e.g. ENS or other blockchain name service record) on the specified chain. Addresses without a registered name may be absent from the map or returned with a null/empty value.
Example use cases
Label wallet addresses in a portfolio tracker
“I have a list of Ethereum addresses from my portfolio tracker — 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045, 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B, and 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe — can you resolve them all to their ENS or blockchain names on chain ID 1?”
Enrich transaction senders with readable names
“These addresses all sent transactions in the last block on Ethereum mainnet (chain 1): 0x00000000219ab540356cBB839Cbe05303d7705Fa and 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2. Can you batch-resolve them to their blockchain name service names so I can display something friendlier than raw addresses?”
Dapp leaderboard name display
“I'm building a leaderboard for my dapp on Polygon (chain 137) and need to show names instead of raw addresses. Here are the top 5 addresses: 0x1111, 0x2222, 0x3333, 0x4444, 0x5555 — resolve them all to their registered names in one shot using Blockscout's name service.”
Technical details
Endpoint
POSThttps://api.blockscout.com/services/bens/api/v1/%7Bchain_id%7D/addresses:batch-resolve-namesWhen to prefer
Use this endpoint when you need to resolve multiple blockchain addresses to human-readable names in a single API call rather than making individual lookups. It is ideal for enriching address lists, powering leaderboards, labeling transaction histories, or any scenario where you have a batch of addresses on a specific chain and want their registered name service names without making N sequential requests. Prefer this over single-address resolvers when processing more than one address at a time to reduce latency and cost.
Side effects
- Invalid or malformed addresses in the batch return errors or are omitted from results
- Unknown or unsupported chain_id returns an error or empty response
- Addresses with no registered name service record return empty/null entries in the names map
- Malformed request body (wrong bodyType or missing required fields) returns a 400-level error
- Payment failure or missing x402 authorization returns a 402 Payment Required error
- Rate limiting or quota exceeded returns a 429 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"names": {}
}
}Tags
x402
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