# Base Wallet Activity Scorer

> Base Wallet Activity Scorer is a paid API for AI agents from base-intel-api.jakemaxsigal.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Returns a 0-100 activity score for a Base wallet address, including smart wallet detection, ETH/USDC balances, and recent USDC flow analysis.

## Facts

- Endpoint: POST https://base-intel-api.jakemaxsigal.workers.dev/wallet/score
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-intel-api-jakemaxsigal-workers-dev-8102d10f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mPyA5JSZYE8xbyBAbmaS4

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-intel-api-jakemaxsigal-workers-dev-8102d10f -d '<json body>'
```

Example prompt: What's the activity score for Base wallet 0x1234...abcd — is it a smart wallet, and how much USDC has it moved recently?

## When to prefer this

Use this endpoint when you need a quick, pre-computed activity signal for a specific Base wallet — especially when you want smart wallet detection and USDC flow context in a single call rather than querying raw blockchain data yourself.

## Known failure modes

- Invalid or malformed wallet address returns a 400 error
- Wallet has no on-chain history resulting in a score of 0 with empty balance fields
- Rate limiting or payment failure (402) if USDC payment is not included or insufficient
- Network timeout if Base RPC is congested

## How this service works

Base wallet score API / wallet reputation / address risk scoring / onchain wallet intelligence / counterparty check. Returns a 0-100 activity score with letter grade, smart-wallet (ERC-4337) detection, ETH and USDC balances, recent USDC flow, and a user profile for any Base address. For AI agents, fraud screening, and KYC/counterparty checks.

## Output

Returns a 0-100 activity score for the queried wallet, a boolean smart wallet flag, current ETH and USDC balances, a summary of recent USDC inflow/outflow, and a basic user profile.

## Example request

```json
{
 "limit": 10,
 "address": "0x1234567890123456789012345678901234567890"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-intel-api-jakemaxsigal-workers-dev-8102d10f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from base-intel-api.jakemaxsigal.workers.dev](https://www.zero.xyz/host/base-intel-api.jakemaxsigal.workers.dev/llms.txt)