# xx402 Base Token Discovery Radar

> xx402 Base Token Discovery 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).

Discovers and ranks Base chain token candidates using Dexscreener search, filtering by liquidity and volume with optional live contract-control probes.

## Facts

- Endpoint: GET https://x402.xx402.icu/api/base-token-discovery-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-token-discovery-radar-1acf9c59
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Pq68Ob3SMH4z8WOnaut8_

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-token-discovery-radar-1acf9c59
```

Example prompt: Search for the top 5 Base chain tokens matching 'aerodrome,virtual,base' with at least $10,000 liquidity and $500 in 24h volume, and run deep contract probes on the top 2 candidates so I can see their risk breakdown and watchlist status.

## When to prefer this

Choose this endpoint when you need to systematically discover and rank Base chain tokens by liquidity, volume, and on-chain contract risk signals — especially when you want configurable search terms and optional live contract probes. Prefer it over generic token screeners when you need the x402 micro-payment model, bucket-based risk triage (watchlist/avoid/review), and Base-native DeFi protocol coverage.

## Known failure modes

- No candidates found matching the liquidity or volume thresholds — returns empty candidate lists
- Dexscreener search terms return no results for the given query — empty sources
- Deep probe limit exceeded maximum of 3 — request rejected with validation error
- Rate limit or payment failure via x402 protocol — HTTP 402 response requiring USDC payment
- Base chain RPC timeout during contract-control probes — partial results with degraded source_status

## 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 with ranked token candidates bucketed into best_candidates, watchlist, review_queue, and avoid_queue, plus a risk_breakdown per token, priority_queue, source_status, bucket_counts, search_terms used, and metadata including purchase_acceptance, buyer_next_action, and not_financial_advice disclaimer.

## Response schema (JSON Schema)

```json
{
 "keys": [
  "summary",
  "purchase_acceptance",
  "buyer_next_action",
  "next_paid_call",
  "decision_evidence",
  "repeat_purchase_guard",
  "discovery_decision",
  "priority_queue",
  "best_next_products",
  "best_candidates",
  "risk_breakdown",
  "search_terms",
  "candidates",
  "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-token-discovery-radar-1acf9c59/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)