# Blockscout Address Details Lookup

> Blockscout Address Details Lookup is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-10).

Fetches comprehensive on-chain details for a specific blockchain address on a given chain, including balance, contract status, token holdings, ENS name, and reputation metadata.

## Facts

- Endpoint: GET https://api.blockscout.com/%7Bchain_id%7D/api/v2/addresses/%7Baddress_hash_param%7D
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockscout-address-details-lookup-3726ca47
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TtgPOjz1RAjULvNjqQ0SN

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-address-details-lookup-3726ca47
```

Example prompt: Can you pull up full details for address 0x742d35Cc6634C0532925a3b8D4C9D5F2e04C3F25 on Ethereum — I want to know if it's a verified contract, its current coin balance, any public tags, and whether it's been flagged as a scam?

## When to prefer this

Use this endpoint when you need comprehensive, structured metadata about a specific blockchain address — including contract verification, balance, tags, proxy info, and scam reputation — across any chain supported by Blockscout. Prefer this over generic RPC calls (eth_getCode, eth_getBalance) when you need enriched human-readable metadata, tags, ENS, and reputation signals rather than raw on-chain data. Ideal for due-diligence workflows, portfolio tools, and explorer-style lookups.

## Known failure modes

- Invalid or malformed address_hash returns a 400 or empty result
- Unsupported or incorrect chain_id returns a 404 or chain-not-found error
- Address not indexed yet on the given chain returns minimal or empty data
- Rate limiting or payment failure (x402) returns a 402 Payment Required
- Network timeouts on heavily loaded chains may return 503

## 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 address hash, display name, coin balance, exchange rate, ENS domain name, contract status (is_contract, is_verified, proxy_type, creation_transaction_hash, creator_address_hash), reputation and scam flag, public/private/watchlist tags, associated token metadata, implementation contracts for proxies, has_logs, has_tokens, has_token_transfers, has_validated_blocks, has_beacon_chain_withdrawals, and the block number at which balance was last updated.

## 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": {
  "hash": "string",
  "name": "string",
  "token": {},
  "is_scam": true,
  "has_logs": true,
  "metadata": {},
  "has_tokens": true,
  "proxy_type": "string",
  "reputation": "string",
  "is_contract": true,
  "is_verified": true,
  "public_tags": [
   {
    "label": "string",
    "address_hash": "string",
    "display_name": "string"
   }
  ],
  "coin_balance": "string",
  "private_tags": [
   {
    "label": "string",
    "address_hash": "string",
    "display_name": "string"
   }
  ],
  "exchange_rate": "string",
  "creation_status": "string",
  "ens_domain_name": "string",
  "implementations": [
   {
    "name": "string",
    "address_hash": "string"
   }
  ],
  "watchlist_names": [
   {
    "label": "string",
    "display_name": "string"
   }
  ],
  "has_token_transfers": true,
  "creator_address_hash": "string",
  "has_validated_blocks": true,
  "watchlist_address_id": 0,
  "creation_transaction_hash": "string",
  "has_beacon_chain_withdrawals": true,
  "block_number_balance_updated_at": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockscout-address-details-lookup-3726ca47/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)