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Blockscout Multichain Quick Search
x402
Blockscout Multichain Quick Search is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-10).
Performs a fast cross-chain search across multiple blockchain networks, returning matching transactions, addresses, tokens, NFTs, blocks, domains, and dapps within a specified cluster
Price / call$0.012
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 structured JSON object containing categorized matches across the cluster: addresses (with chain info, coin balance, domain names), transactions (hash and chain), tokens and NFTs (name, symbol, supply, holders, market cap, icon), blocks (hash, chain), block numbers, ENS/Web3 domains (with protocol info and expiry), and dapps (title, chain, logo, description).
Example use cases
Token lookup across chains
“Can you search for the USDC token across all chains in my cluster and tell me its total supply, holders count, and exchange rate?”
Cross-chain wallet investigation
“Look up the address 0xAbC123...def456 on Blockscout's multichain search in cluster mainnet-evm and tell me what chains it's active on, its coin balance, and any ENS-style domains attached to it.”
Transaction hash verification
“I have the hash 0xabc123...xyz and I'm not sure which chain it's on — can you use Blockscout's multichain search on cluster ethereum-mainnet to find which network this transaction is on?”
Technical details
Endpoint
GEThttps://api.blockscout.com/services/multichain/api/v1/clusters/%7Bcluster_id%7D/search:quickWhen to prefer
Use this endpoint when you need to search for blockchain entities (addresses, transactions, tokens, NFTs, domains, dapps) across multiple chains simultaneously within a cluster, rather than querying each chain individually. Ideal when the user does not know which specific chain an entity lives on, or wants comprehensive cross-chain visibility in a single call. Prefer over single-chain explorers when multichain coverage is required.
Side effects
- Missing or invalid cluster_id returns an error or empty results
- Empty search query returns no results
- Query too short or ambiguous may return irrelevant matches
- Rate limiting or payment failure (HTTP 402) if USDC payment not attached
- Cluster ID not recognized returns 404 or empty response
- Chain data may be temporarily unavailable for some networks in the cluster
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"nfts": [
{
"name": "string",
"type": "string",
"symbol": "string",
"decimals": "string",
"icon_url": "string",
"chain_infos": {},
"address_hash": "string",
"total_supply": "string",
"exchange_rate": "string",
"holders_count": "string",
"circulating_market_cap": "string"
}
],
"dapps": [
{
"id": "string",
"logo": "string",
"title": "string",
"chain_id": "string",
"short_description": "string"
}
],
"blocks": [
{
"hash": "string",
"chain_id": "string",
"hash_type": "string"
}
],
"tokens": [
{
"name": "string",
"type": "string",
"symbol": "string",
"decimals": "string",
"icon_url": "string",
"chain_infos": {},
"address_hash": "string",
"total_supply": "string",
"exchange_rate": "string",
"holders_count": "string",
"circulating_market_cap": "string"
}
],
"domains": [
{
"name": "string",
"address": "string",
"protocol": {
"id": "string",
"title": "string",
"docs_url": "string",
"icon_url": "string",
"tld_list": [
"string"
],
"short_name": "string",
"description": "string",
"deployment_blockscout_base_url": "string"
},
"expiry_date": "string"
}
],
"addresses": [
{
"hash": "string",
"domains": [
{
"name": "string",
"protocol": {
"id": "string",
"title": "string",
"docs_url": "string",
"icon_url": "string",
"tld_list": [
"string"
],
"short_name": "string",
"description": "string",
"deployment_blockscout_base_url": "string"
}
}
],
"has_tokens": true,
"chain_infos": {},
"coin_balance": "string",
"exchange_rate": "string",
"has_interop_message_transfers": true
}
],
"transactions": [
{
"hash": "string",
"chain_id": "string",
"hash_type": "string"
}
],
"block_numbers": [
{
"chain_id": "string",
"block_number": "string"
}
]
}
}Tags
x402
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