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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, $0.01/call, status unknown (last checked 2026-09-15).
Quickly searches across multiple blockchain networks for transactions, addresses, tokens, NFTs, dapps, blocks, and domains by a query string
Price / call$0.01
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 matched results grouped by category: transactions (hash, chain_id, hash_type), addresses (hash, chain_id, contract info, token info, domain info), tokens (name, symbol, address, chain_id, icon_url, verified status), NFTs (hash, chain_id, token_name, token_type, domain_info), dapps (id, logo, title, chain_id, short_description), blocks (hash, chain_id, hash_type), block_numbers (chain_id, block_number), and domains (name, address, protocol details, expiry_date).
Example use cases
Cross-chain transaction lookup
“I have a transaction hash 0xabc123...def and I'm not sure which blockchain it's on — can you search Blockscout across all chains to find it for me?”
Token discovery across networks
“Search Blockscout's multichain explorer for a token called 'USDC' and show me all the chains and contract addresses where it's listed.”
Wallet activity exploration
“Look up the wallet address 0x1234...abcd on Blockscout and tell me what chains it shows up on, whether it's a contract, and any associated domain names.”
Technical details
Endpoint
GEThttps://api.blockscout.com/services/multichain/api/v1/search:quickWhen to prefer
Choose this endpoint when you need to search across multiple blockchain networks simultaneously with a single query string and don't know which specific chain an entity lives on. It is ideal for exploratory lookups of addresses, transactions, tokens, NFTs, dapps, and domains without needing to target a specific chain. Prefer this over single-chain explorers when cross-chain discovery is the goal.
Side effects
- Empty results if query string doesn't match any entity on any supported chain
- Missing or malformed query parameter returns a 400 error
- Rate limiting or payment failure (x402) if USDC payment is not properly attached
- Chain IDs in response may be unfamiliar if not cross-referenced with chain registry
- Results may be incomplete if 'unlimited_per_chain' is not set and many chains match
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"nfts": [
{
"hash": "string",
"chain_id": "string",
"is_token": true,
"token_name": "string",
"token_type": "string",
"domain_info": {
"name": "string",
"address": "string",
"expiry_date": "string",
"names_count": 0
},
"is_contract": true,
"contract_name": "string",
"is_verified_contract": true
}
],
"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",
"symbol": "string",
"address": "string",
"chain_id": "string",
"icon_url": "string",
"is_verified_contract": true
}
],
"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",
"chain_id": "string",
"is_token": true,
"token_name": "string",
"token_type": "string",
"domain_info": {
"name": "string",
"address": "string",
"expiry_date": "string",
"names_count": 0
},
"is_contract": true,
"contract_name": "string",
"is_verified_contract": true
}
],
"transactions": [
{
"hash": "string",
"chain_id": "string",
"hash_type": "string"
}
],
"block_numbers": [
{
"chain_id": "string",
"block_number": "string"
}
]
}
}Tags
x402
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