# Blockscout Account Abstraction Account Lookup

> Blockscout Account Abstraction Account Lookup is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-12).

Retrieves ERC-4337 smart account (account abstraction) details for a given address on a specific blockchain, including factory info, creation metadata, and operation counts

## Facts

- Endpoint: GET https://api.blockscout.com/%7Bchain_id%7D/api/v2/proxy/account-abstraction/accounts/%7Baddress_hash_param%7D
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockscout-account-abstraction-account-lookup-e58d8138
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v6_1kYZyIy4puuAno4y2n

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-account-abstraction-account-lookup-e58d8138
```

Example prompt: Can you pull up the account abstraction details for the smart wallet address 0xAbC123... on Ethereum (chain ID 1) using Blockscout — I want to see its factory, when it was created, and how many user operations it's had?

## When to prefer this

Use this endpoint when you need ERC-4337 account abstraction specific metadata for a wallet address on a supported chain — particularly factory info, creation details, and user op counts. Prefer this over generic address lookup endpoints when you specifically need smart account/account abstraction context rather than standard EOA or contract data.

## Known failure modes

- Invalid or non-existent address_hash returns empty or 404 response
- Unsupported chain_id returns an error or empty data
- Address is not an ERC-4337 smart account (returns no account abstraction data)
- Network timeout or upstream Blockscout node unavailability
- Malformed address hash (wrong format/length) causes a 400 error

## 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 the smart account's address details (hash, name, proxy type, reputation, scam flag, public/private tags, ENS domain, implementations), the factory address that deployed it, total user operation count, creation operation hash, creation timestamp, and creation transaction hash.

## 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": {
      "chain_id": {
       "type": "string"
      },
      "address_hash_param": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "address": {
   "hash": "string",
   "name": "string",
   "is_scam": true,
   "metadata": {},
   "proxy_type": "string",
   "reputation": "string",
   "is_contract": true,
   "is_verified": true,
   "public_tags": [
    {
     "label": "string",
     "address_hash": "string",
     "display_name": "string"
    }
   ],
   "private_tags": [
    {
     "label": "string",
     "address_hash": "string",
     "display_name": "string"
    }
   ],
   "ens_domain_name": "string",
   "implementations": [
    {
     "name": "string",
     "address_hash": "string"
    }
   ],
   "watchlist_names": [
    {
     "label": "string",
     "display_name": "string"
    }
   ]
  },
  "factory": {
   "hash": "string",
   "name": "string",
   "is_scam": true,
   "metadata": {},
   "proxy_type": "string",
   "reputation": "string",
   "is_contract": true,
   "is_verified": true,
   "public_tags": [
    {
     "label": "string",
     "address_hash": "string",
     "display_name": "string"
    }
   ],
   "private_tags": [
    {
     "label": "string",
     "address_hash": "string",
     "display_name": "string"
    }
   ],
   "ens_domain_name": "string",
   "implementations": [
    {
     "name": "string",
     "address_hash": "string"
    }
   ],
   "watchlist_names": [
    {
     "label": "string",
     "display_name": "string"
    }
   ]
  },
  "total_ops": 0,
  "creation_op_hash": "string",
  "creation_timestamp": "string",
  "creation_transaction_hash": "string"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockscout-account-abstraction-account-lookup-e58d8138/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)