# Base Onchain Risk & Token Intelligence API – Batch Token Diligence

> Base Onchain Risk & Token Intelligence API – Batch Token Diligence is a paid API for AI agents from xx402.icu, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).

Screens up to 3 Base ERC20 token addresses in a single call for onchain risk signals including liquidity, holder concentration, contract controls, DEX pair anomalies, and trade safety.

## Facts

- Endpoint: GET https://xx402.icu/x402/api/base-token-batch-diligence
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/base-onchain-risk-token-intelligence-api-batch-token-diligence-c1cc87e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NoI8PnSbn-B5x083uup0c

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-batch-token-diligence-c1cc87e6
```

Example prompt: Can you run a batch risk diligence check on these 3 Base tokens — 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, 0x4200000000000000000000000000000000000006, and 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb — screening their liquidity, holder concentration, contract controls, and DEX pair anomalies over the last 500 blocks?

## When to prefer this

Use this endpoint when you need to simultaneously screen multiple (up to 3) Base ERC20 tokens for a comprehensive set of onchain risk signals — including liquidity exit risk, holder concentration, DEX pair anomalies, contract control events, and trade safety — in a single call. Prefer over single-token endpoints when evaluating a shortlist of tokens before trading, adding to a watchlist, or building a DeFi risk dashboard on Base.

## Known failure modes

- Invalid or non-Base token address returns error or empty token result
- Exceeding limit of 3 token addresses returns validation error
- window_blocks outside 100–1000 range rejected with schema error
- Payment not processed results in 402 response
- Token with no onchain history may return incomplete or null sub-checks
- Rate limiting or upstream RPC failure may return 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

Returns a JSON object with a summary of risk findings, per-token risk details (liquidity, holder concentration, contract controls, DEX anomalies, trade safety), aggregate risk level counts (low/medium/high), a list of high-risk tokens, tokens flagged for manual review, and the data sources used.

## Response schema (JSON Schema)

```json
{
 "keys": [
  "summary",
  "batch_decision",
  "priority_queue",
  "best_next_products",
  "best_candidates",
  "risk_breakdown",
  "review_queue",
  "avoid_queue",
  "tokens",
  "risk_level_counts",
  "bucket_counts",
  "high_risk_tokens",
  "manual_review_tokens",
  "source_status",
  "sources"
 ],
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/base-onchain-risk-token-intelligence-api-batch-token-diligence-c1cc87e6/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)