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Arkham Intelligence Address Lookup
x402
Arkham Intelligence Address Lookup is a paid API for AI agents from api.arkm.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-13).
Returns on-chain identity intelligence for a blockchain wallet address, including entity attribution, labels, and contract status.
Price / call$0.2
Success—
StatusUnknown
How this service works
Get Arkham intelligence for an address. $0.20 per call.
Output
A JSON object containing the chain, address, a boolean indicating whether it is a contract, an Arkham label (name and chain type), an Arkham entity object (id, name, type, social profiles including Twitter, website, LinkedIn, Crunchbase), and a flag indicating whether it is a user address.
Example use cases
Exchange wallet attribution for compliance
“I need to know if the address 0x28C6c06298d514Db089934071355E5743bf21d60 on Ethereum belongs to a centralized exchange — get me the entity name, type, and any known labels from Arkham.”
Smart contract vs EOA detection
“Can you check whether 0xde0B295669a9FD93d5F28D9Ec85E40f4cb697BAe on Ethereum is a smart contract or a regular wallet, and tell me what Arkham knows about who controls it?”
Investigating unknown transaction sender
“I just received funds from 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B — can you look up who this address belongs to on Arkham and tell me if it's linked to any known entity or exchange?”
Technical details
Endpoint
POSThttps://api.arkm.com/x402/intelligence/addressWhen to prefer
Use this endpoint when you need authoritative on-chain entity attribution — specifically Arkham's proprietary labeling of wallets to known entities (exchanges, protocols, funds, individuals). It is ideal for compliance checks, due diligence on counterparties, or enriching transaction data with real-world identity context. Prefer it over generic blockchain explorers when you need structured entity metadata (type, social links, exchange affiliation) rather than raw transaction history.
Side effects
- Address not found in Arkham database — entity fields may be null or absent
- Invalid address format — malformed hex address returns an error
- Unsupported chain — chain identifiers not indexed by Arkham return no data
- Insufficient USDC balance for x402 pay-per-request — payment failure blocks the call
- Rate limiting if too many requests are issued in quick succession
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | — | Blockchain network to query. Only one network is used: if multiple values are provided, only the first applies. If omit… |
| address | — | The blockchain address to query. |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "ethereum",
"address": "0x28C6c06298d514Db089934071355E5743bf21d60",
"contract": false,
"arkhamLabel": {
"name": "Hot Wallet",
"address": "0x28C6c06298d514Db089934071355E5743bf21d60",
"chainType": "evm"
},
"arkhamEntity": {
"id": "binance",
"name": "Binance",
"note": "",
"type": "cex",
"service": null,
"twitter": "https://twitter.com/binance",
"website": "https://binance.com",
"linkedin": "https://www.linkedin.com/company/binance",
"crunchbase": "https://www.crunchbase.com/organization/binance"
},
"isUserAddress": false
}
}Tags
x402
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