# Base Wallet Activity Summary

> Base Wallet Activity Summary is a paid API for AI agents from x402-services-production.up.railway.app, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Returns a behavioral profile of an EVM wallet on Base: recent transactions, top methods called, distinct counterparties, and latest actions

## Facts

- Endpoint: POST https://x402-services-production.up.railway.app/api/crypto/activity
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-wallet-activity-summary-60a4cf18
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7UULMrkUGTDVsDq2xpXUw

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 base-wallet-activity-summary-60a4cf18 -d '<json body>'
```

Example prompt: Can you profile the wallet 0x4838B106FCe9647Bdf1E7877BF73cE8B0BAD5f97 on Base — I want to see what it's been doing lately, which methods it calls most, and who it's been transacting with?

## When to prefer this

Use this endpoint when you need a behavioral profile of a wallet on Base — understanding what it does, not just its balance. Ideal for due diligence, counterparty analysis, bot detection, or building context about an unknown address before interacting with it.

## Known failure modes

- Invalid or malformed address format returns validation error
- Address with no on-chain activity may return empty or minimal results
- Network or RPC errors may cause timeout or partial data
- Rate limiting or payment failure returns 402 or 429 status

## How this service works

Wallet activity summary: recent transactions, top methods called, distinct counterparties, and latest actions for an address on Base. Send { address }. Agents profile what a wallet does.

## Output

A structured wallet activity summary including recent transactions, the most frequently called contract methods, a list of distinct counterparty addresses, and the latest on-chain actions performed by the given Base wallet address.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "address"
 ],
 "properties": {
  "address": {
   "type": "string",
   "description": "0x EVM wallet address on Base"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-wallet-activity-summary-60a4cf18/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-services-production.up.railway.app](https://www.zero.xyz/host/x402-services-production.up.railway.app/llms.txt)