# Blockscout BENS Domain Events Lookup

> Blockscout BENS Domain Events Lookup is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.015/call, status unknown (last checked 2026-09-11).

Retrieves a paginated list of historical events (registrations, transfers, renewals) for a specific blockchain name service domain on a given chain

## Facts

- Endpoint: GET https://api.blockscout.com/services/bens/api/v1/%7Bchain_id%7D/domains/%7Bname%7D/events
- Price: $0.015/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockscout-bens-domain-events-lookup-1bac974b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SaPK12em1uO1GbwUmIKF7

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability blockscout-bens-domain-events-lookup-1bac974b
```

Example prompt: Can you pull up all the events for the domain 'vitalik.eth' on Ethereum (chain ID 1) using Blockscout's name service — I want to see registrations, transfers, and any other activity sorted by most recent first?

## When to prefer this

Use this endpoint when you need the historical event log (registrations, transfers, renewals) for a specific blockchain name service domain on a particular chain. It is distinct from general address/transaction search — it targets BENS (Blockscout's ENS-compatible name service) domain lifecycle events. Prefer it over generic blockchain explorers when you need structured, paginated domain event history across multiple chains from a single API.

## Known failure modes

- Invalid chain_id returns empty results or 404
- Unknown or unregistered domain name returns empty items array
- Unsupported protocol_id causes no results
- Malformed domain name format returns error
- Rate limiting or payment failure returns 402 or 429
- Chain not supported by BENS returns empty or error response

## 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 array of domain events, each containing an action type (e.g. registration, transfer, renewal), a timestamp, the originating address hash with optional ENS name, and the transaction hash on the specified chain.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "properties": {
      "name": {
       "type": "string"
      },
      "chain_id": {
       "type": "string"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "sort": {
       "type": "string"
      },
      "order": {
       "type": "string"
      },
      "protocol_id": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "items": [
   {
    "action": "string",
    "timestamp": "string",
    "from_address": {
     "hash": "string",
     "ens_domain_name": "string"
    },
    "transaction_hash": "string"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockscout-bens-domain-events-lookup-1bac974b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.blockscout.com](https://www.zero.xyz/host/api.blockscout.com/llms.txt)