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x402 Wallet Activity Summary
x402
x402 Wallet Activity Summary is a paid API for AI agents from call402.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-19).
Returns a comprehensive activity summary for an EVM wallet address including native balance, top tokens, recent transactions, and anomaly detection on Ethereum or Base.
Price / call$0.05
Success—
StatusUnknown
How this service works
USDC pay-per-call APIs for AI agents via the x402 protocol (v2, exact, Base mainnet). Send a request, receive HTTP 402 with payment requirements, pay with @x402/fetch or any x402 client, retry with the PAYMENT-SIGNATURE header.
Output
A JSON object containing the wallet address and chain, a list of data sources used (e.g. Blockscout) with their status, the native token balance (amount and symbol), a list of top tokens held, recent on-chain activity, a count of recent transactions, detected anomalies, and a data quality indicator ('full' or partial).
Example use cases
Due diligence on a counterparty wallet
“Before I send funds to 0xAbCd1234...5678, can you summarize their on-chain activity on Ethereum — recent transactions, token holdings, native balance, and flag anything that looks suspicious?”
Monitor a DeFi portfolio wallet
“Give me a full activity summary for my Base wallet 0x1234...abcd — I want to see my ETH balance, what tokens I've been moving around, and how many transactions I've made recently.”
Investigate anomalous wallet behavior
“I've seen some weird transfers from 0xDEAD...BEEF on Ethereum — can you pull a wallet activity summary and tell me if there are any detected anomalies in that address?”
Technical details
Endpoint
POSThttps://call402.com/api/wallet-activity-summary?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, consolidated on-chain activity profile for an EVM wallet — especially when you want balance, recent transactions, token holdings, and anomaly detection in a single call. Prefer it over raw blockchain RPC calls or block explorers when you need structured, agent-ready JSON output with minimal integration effort and are comfortable with pay-per-call USDC micropayments via the x402 protocol.
Side effects
- Invalid or malformed EVM address returns an error
- Unsupported chain value (not 'ethereum' or 'base') returns validation error
- HTTP 402 returned first call — agent must pay $0.05 USDC via x402 protocol before receiving data
- Data source (e.g. Blockscout) unavailable may return partial data quality
- Newly created or empty wallet may return empty activity arrays
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | Default ethereum |
| address | string | EVM wallet address |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "ethereum",
"address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"sources": [
{
"ok": true,
"name": "blockscout"
}
],
"anomalies": [],
"top_tokens": [],
"data_quality": "full",
"native_balance": {
"amount": "5.769725",
"symbol": "ETH"
},
"recent_activity": [],
"tx_count_recent": 20
}
}Tags
x402
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