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x402-experiments Address Enrichment (lab.paidapis.net)
x402
x402-experiments Address Enrichment (lab.paidapis.net) is a paid API for AI agents from lab.paidapis.net, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Enriches a blockchain address with classification, native ETH balance, and transaction count to distinguish contracts from wallets
Price / call$0.01
Success—
StatusUnknown
How this service works
Enrichment: attaches real on-chain context to a bare address (contract vs EOA, native balance, transaction count, new-vs-active classification) — checkable facts only, no unverifiable labels.
Output
Returns the queried address alongside a boolean isContract flag, a classification enum (contract, new-wallet, or active-wallet), the native ETH balance as a decimal number, and the total transaction count as an integer.
Example use cases
Pre-transfer wallet sanity check
“Before I send funds, can you check if 0xAbCd1234... is an active wallet or a brand-new address with no transaction history on Base?”
Detect smart contract vs EOA
“I need to know whether 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD is a deployed smart contract or a regular externally owned wallet — can you check?”
Counterparty due diligence
“I'm about to do a deal with someone who gave me their Base address 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97 — can you tell me its ETH balance and total transaction count so I know how established they are?”
Technical details
Endpoint
GEThttps://lab.paidapis.net/api/enrich-addressWhen to prefer
Choose this endpoint when you need a quick, cheap ($0.01 USDC) on-chain profile of an address on Base mainnet — especially when you need to distinguish smart contracts from wallets or gauge how active an address is. Prefer it over full block explorer APIs when you only need classification, balance, and transaction count without deep transaction history.
Side effects
- Invalid or malformed address string returns a validation error
- Address not found on Base mainnet may return zero balance and zero transaction count rather than an error
- Network or RPC timeouts can cause delayed or failed responses
- Payment failure via x402 protocol will result in a 402 response before any data is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| addressrequired | string | Address to look up. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| address | string | |
| isContract | boolean | |
| classification | string | |
| nativeBalanceEth | number | |
| transactionCount | integer |
Tags
x402
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