# Base Onchain Risk & Token Intelligence API – Wallet Risk Endpoint

> Base Onchain Risk & Token Intelligence API – Wallet Risk Endpoint is a paid API for AI agents from xx402.icu, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns onchain risk assessment for a Base wallet address including approval exposure, token risk, and counterparty flow analysis within a specified block window

## Facts

- Endpoint: GET https://xx402.icu/x402/api/base-wallet-risk
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-onchain-risk-token-intelligence-api-wallet-risk-endpoint-72563260
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WRGc4Yy99Nj2bR29NTdgg

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-onchain-risk-token-intelligence-api-wallet-risk-endpoint-72563260
```

Example prompt: Can you check the onchain risk profile for Base wallet 0xfBDB0Ad415e95c4843FD872FAc967459572910f1 — specifically look at its USDC approval exposure and any suspicious counterparty flows over the last 3000 blocks and flag anything alarming?

## When to prefer this

Use this endpoint when you need a comprehensive onchain risk snapshot for a specific Base wallet, including approval exposure, counterparty flow, and token-level risk, all in a single call. Prefer this over generic blockchain explorers when you need structured, actionable risk signals rather than raw transaction data, especially for DeFi due diligence or pre-trade safety checks.

## Known failure modes

- Invalid wallet address format (must be 0x + 40 hex chars) returns 400 error
- Invalid token_address format returns validation error
- window_blocks outside 100–5000 range returns parameter error
- Payment failure via x402 protocol returns 402 Payment Required
- Wallet with no onchain history may return empty or sparse risk data
- Rate limiting or provider downtime returns 5xx error

## How this service works

Paid x402 buyer market scout, x402 paid resource preflight, x402 seller visibility audit, Base actionable risk feed, liquidity exit risk alerts, pool launch risk feed, stable asset risk feed, contract control event feed, protocol outflow risk feed, yield pool allocation risk feed, protocol fee quality feed, token watchlist decision packet, wallet watchlist decision packet, approval risk feed, ranked DeFi review queues with incident history, onchain risk decision packet, promoted token campaign decision packet, large transfer decision packet, token candidate screening decision radar, DEX pair anomaly decision radar, wallet safety decision packet, counterparty flow, allowance, approval exposure, DEX pair routing risk, token trade safety, token liquidity, token flow, holder concentration, contract controls, batch token screening decision packets, token diligence, and BTC15 prediction-market microstructure, execution-friction, calibration-slice, recent market tape, resolved feature sample, and threshold-pressure packets for agents and risk tools.

## Output

A JSON object with keys: address_risk (risk scoring for the queried wallet), approval_exposure (list of risky token approvals granted by the wallet), risk (overall risk summary), review_queue (flagged items for human review with incident history), and sources (data provenance). Includes transfer samples and spender details up to the requested limit.

## Response schema (JSON Schema)

```json
{
 "keys": [
  "summary",
  "wallet_safety_decision",
  "priority_queue",
  "risk_breakdown",
  "exposure_overview",
  "address_risk",
  "approval_exposure",
  "counterparty_flow",
  "risk",
  "review_queue",
  "avoid_queue",
  "approval_revocation_queue",
  "bucket_counts",
  "source_status",
  "sources"
 ],
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-onchain-risk-token-intelligence-api-wallet-risk-endpoint-72563260/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from xx402.icu](https://www.zero.xyz/host/xx402.icu/llms.txt)