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Blockscout Multichain Address Lookup
x402
Blockscout Multichain Address Lookup is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Retrieves a paginated list of blockchain addresses with balances, transaction counts, tags, and metadata for a specified chain
Price / call$0.002
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 containing: hash, name, coin balance, transaction count, contract status, verification status, proxy type, ENS domain name, public/private/watchlist tags, implementation addresses, reputation score, and scam flag. Also includes total supply, exchange rate, and next-page pagination params.
Example use cases
Audit top wallet activity on a chain
“Show me the most active wallet addresses on Polygon using Blockscout, sorted by transaction count in descending order, and flag any that are marked as scams or have known tags.”
Verify contract addresses for a dapp
“I need to check the addresses deployed on Arbitrum — can you pull a list from Blockscout and tell me which ones are verified contracts with their names and proxy types?”
Track high-balance addresses for research
“Get me the addresses on Base mainnet with the highest coin balances from Blockscout, including their ENS domain names and public tags, paginated 20 at a time.”
Technical details
Endpoint
GEThttps://api.blockscout.com/%7Bchain_id%7D/api/v2/addressesWhen to prefer
Choose this endpoint when you need structured address-level data (balances, tags, contract info, ENS names) across multiple EVM-compatible chains via a single unified API. Prefer it over chain-specific RPC calls when you need enriched metadata like scam flags, public tags, proxy type, and reputation — information not available from raw node queries.
Side effects
- Invalid or unsupported chain_id returns 404 or empty result
- Malformed address hash filter returns 400 bad request
- Rate limiting or payment failure returns 402 Payment Required
- Pagination params out of range may return empty items array
- Chain not indexed by Blockscout returns no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"items": [
{
"hash": "string",
"name": "string",
"is_scam": true,
"metadata": {},
"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"
}
],
"ens_domain_name": "string",
"implementations": [
{
"name": "string",
"address_hash": "string"
}
],
"watchlist_names": [
{
"label": "string",
"display_name": "string"
}
],
"transactions_count": {}
}
],
"total_supply": "string",
"exchange_rate": "string",
"next_page_params": {}
}
}Tags
x402
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