# xx402 Base DEX Pair Anomaly Radar

> xx402 Base DEX Pair Anomaly Radar is a paid API for AI agents from x402.xx402.icu, paid per call via x402, $0.01/call, status down (last checked 2026-10-27).

Scans Base chain DEX pairs for anomalous activity and returns a prioritized watchlist, radar decision, and risk breakdown for DeFi trading pairs.

## Facts

- Endpoint: GET https://x402.xx402.icu/api/base-dex-pair-anomaly-radar?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/xx402-base-dex-pair-anomaly-radar-897c3a7c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LN5cILK_aZvsE9ucbg_Cn

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 xx402-base-dex-pair-anomaly-radar-897c3a7c
```

Example prompt: Scan the top 8 Base DEX pairs matching aerodrome and virtual with at least $5000 liquidity and $500 in 24h volume, and give me an anomaly radar report showing which pairs to watch, avoid, or flag as risky.

## When to prefer this

Choose this endpoint when you need a curated anomaly radar specifically for Base chain DEX pairs, with risk bucketing and prioritized watchlist/avoid queues built in — rather than raw DEX data or generic token screeners. Best suited for autonomous DeFi agents that need a pre-ranked, actionable signal rather than raw pair lists. Prefer over generic Dexscreener queries when you need anomaly detection logic and risk breakdown applied automatically.

## Known failure modes

- No pairs found matching the given search terms or liquidity/volume filters — returns empty queues
- Dexscreener data source unavailable — source_status reflects degraded state
- Invalid query parameter types (e.g. non-integer limit) cause schema validation errors
- Extremely high liquidity thresholds that exclude all discovered pairs return empty results
- Payment failure via x402 protocol prevents endpoint access entirely

## How this service works

Paid Base token, wallet, DeFi, chain-read, x402 buyer/seller discovery, and specialized Bitcoin 15-minute Up/Down prediction-market data packets for autonomous agents and risk tools.

## Output

Returns a JSON object containing a radar_decision summary, priority_queue of ranked anomalous pairs, watchlist and avoid_queue of specific pairs, a risk_breakdown per pair, bucket_counts by risk tier, source_status for data freshness, search_terms used, and a not_financial_advice disclaimer. Also includes buyer/seller discovery context and next-action guidance for autonomous agents.

## Response schema (JSON Schema)

```json
{
 "keys": [
  "summary",
  "purchase_acceptance",
  "buyer_next_action",
  "next_paid_call",
  "decision_evidence",
  "repeat_purchase_guard",
  "radar_decision",
  "priority_queue",
  "best_next_products",
  "risk_breakdown",
  "search_terms",
  "pairs",
  "watchlist",
  "review_queue",
  "avoid_queue",
  "bucket_counts",
  "source_status",
  "not_financial_advice",
  "sources"
 ],
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/xx402-base-dex-pair-anomaly-radar-897c3a7c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.xx402.icu](https://www.zero.xyz/host/x402.xx402.icu/llms.txt)