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Blockscout Multichain Address Search
x402
Blockscout Multichain Address Search is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-14).
Search for blockchain addresses across multiple chains within a Blockscout cluster, returning balance, token, and domain information
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 paginated list of address objects, each including the address hash, associated ENS or protocol domain names, coin balance, exchange rate, whether the address holds tokens, chain-specific info across the queried networks, interop message transfer flags, and pagination parameters for fetching subsequent pages.
Example use cases
Cross-chain wallet balance check
“Can you look up the address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B on Blockscout's multichain cluster 'evm-mainnet' across Ethereum and Polygon, and tell me its coin balances and whether it holds any tokens?”
ENS domain reverse lookup across chains
“Search Blockscout's multichain explorer in cluster 'evm-public' for the address associated with 'vitalik.eth' and show me which chains it appears on along with any domain protocol details.”
Paginated address discovery for research
“I'm researching active wallets — can you search Blockscout's multichain cluster 'top-chains' for addresses matching '0x1234' with a page size of 20, and give me the first page of results including balances and chain info?”
Technical details
Endpoint
GEThttps://api.blockscout.com/services/multichain/api/v1/clusters/%7Bcluster_id%7D/search/addressesWhen to prefer
Choose this endpoint when you need to search for blockchain addresses across multiple chains simultaneously within a Blockscout cluster, especially when you want aggregated balance, token holdings, and ENS/domain information in a single call. Prefer it over single-chain explorers when cross-chain visibility is required, or when you need to resolve human-readable domain names to addresses across networks.
Side effects
- Invalid or unknown cluster_id returns 404 or empty results
- Malformed address query string returns no matches
- Unsupported chain_id values may be silently ignored or return empty chain_infos
- Missing required cluster_id path parameter causes request failure
- Payment not included or insufficient USDC triggers 402 Payment Required
- Rate limiting may return 429 if too many requests are made in quick succession
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"items": [
{
"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
}
],
"next_page_params": {
"page_size": 0,
"page_token": "string"
}
}
}Tags
x402
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