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x402 Base Tools – Address Profile
x402
x402 Base Tools – Address Profile is a paid API for AI agents from base.kagurazaka.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).
Returns a comprehensive profile of a Base blockchain address: wallet type, transaction count, ETH and USDC balances, primary Basename, ERC-20 token info, and x402 seller/payment receiver details.
Price / call$0.001
Success—
StatusUnknown
How this service works
Profile of a Base address: wallet (EOA), EIP-7702 delegated wallet or contract; transaction count; ETH and USDC balances; its primary Basename; the token it is, if it is an ERC-20; and the x402 seller it receives payments for, from Bazaar listings.
Output
A JSON object containing: wallet type (eoa, eip7702, or contract), transaction count, ETH balance as a decimal string, USDC balance as a decimal string, primary Basename (or null), ERC-20 token details (or null if not a token contract), and x402_seller info including allowed origins and number of Bazaar listings (or null if not a seller).
Example use cases
Verify x402 seller identity before payment
“Before I send payment, can you check 0xAbCd...1234 on Base — is it a legitimate x402 seller, how many Bazaar listings does it have, and what origins is it registered under?”
Audit a wallet's balance and transaction history
“What are the ETH and USDC balances and the total transaction count for Base address 0x9f3a...beef? Also tell me if it has a Basename.”
Identify if an address is an ERC-20 token contract
“I have this Base address 0xdead...cafe — can you tell me if it's an ERC-20 token contract and what type of wallet it is?”
Technical details
Endpoint
GEThttps://base.kagurazaka.dev/v1/address?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a single comprehensive snapshot of a Base address — combining wallet classification, balances, identity (Basename), token info, and x402 payment receiver status in one call. Prefer it over separate balance or Basename endpoints when you need multiple data points about the same address simultaneously, or when building agent workflows that need to verify whether a payee is a registered x402 seller before initiating a payment.
Side effects
- Invalid or malformed address format returns an error
- Address not found on Base returns null fields
- Network congestion may cause delayed responses
- Non-Base addresses (e.g. Ethereum mainnet) will not resolve correctly
- Rate limiting if called excessively without payment
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"eth": "0.001",
"type": "eoa",
"usdc": "8.98",
"token": null,
"basename": null,
"x402_seller": {
"origins": [
"https://..."
],
"listings": 28
},
"transactions": 3
}
}Tags
x402
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