# x402 Wallet Activity Summary

> 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.

## Facts

- Endpoint: POST https://call402.com/api/wallet-activity-summary?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-wallet-activity-summary-4c3a1508
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_57rGxL0htwkYpsjm2Fe96

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-wallet-activity-summary-4c3a1508 -d '<json body>'
```

Example prompt: Can you pull up a wallet activity summary for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 on Ethereum — I want to see the balance, recent transactions, top tokens, and any anomalies?

## When to prefer this

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.

## Known failure modes

- 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

## 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).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "enum": [
    "ethereum",
    "base"
   ],
   "type": "string",
   "description": "Default ethereum"
  },
  "address": {
   "type": "string",
   "description": "EVM wallet address"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "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
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-wallet-activity-summary-4c3a1508/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from call402.com](https://www.zero.xyz/host/call402.com/llms.txt)