# Blockscout Multichain Quick Search

> Blockscout Multichain Quick Search is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.0025/call, status unknown (last checked 2026-09-15).

Performs a quick search across a specific blockchain network to find transactions, addresses, tokens, and dapps by query string

## Facts

- Endpoint: GET https://api.blockscout.com/%7Bchain_id%7D/api/v2/search/quick
- Price: $0.0025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockscout-multichain-quick-search-57c991d7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_F-Oix0LthhVBNbFYg6iip

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-multichain-quick-search-57c991d7
```

Example prompt: Search Blockscout for the address 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum mainnet and tell me what it is — transaction history, token, or contract.

## When to prefer this

Choose this endpoint when you need to quickly resolve an unknown identifier (address, token name, tx hash) on a specific blockchain without knowing exactly what type of entity it is. It is ideal for cross-entity searches where the type is ambiguous. Prefer it over chain-specific explorers when you need Blockscout's multichain coverage and programmatic access via a paid API with x402 payment protocol.

## Known failure modes

- Invalid or unsupported chain_id returns an error or empty results
- Empty or overly broad query string returns no matches
- Query string matches nothing on the specified chain — returns empty array
- Payment of 0.0025 USDC not fulfilled — returns 402 Payment Required
- Network timeout or upstream Blockscout node unavailable

## 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 quick search results matching the query on the specified chain, which may include addresses, tokens, transactions, smart contracts, and dapps with their relevant metadata such as names, hashes, types, and links.

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": [
  {}
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockscout-multichain-quick-search-57c991d7/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)