# x402 Radar API Search

> x402 Radar API Search is a paid API for AI agents from configure-flip-childhood-widely.trycloudflare.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-18).

Search a merged index of 26,000+ x402 micropayment-enabled API services, returning ranked matches with price, network, wallet address, and liveness data

## Facts

- Endpoint: POST https://configure-flip-childhood-widely.trycloudflare.com/api/search
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-radar-api-search-67dc8edd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gHRT5OZLu0m7yzJRaAPK7

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 x402-radar-api-search-67dc8edd -d '<json body>'
```

Example prompt: Search the x402 Radar index for APIs that do 'sentiment analysis' and show me the top results with their prices, networks, and whether they're currently live.

## When to prefer this

Use this endpoint when an AI agent needs to discover x402-compatible micropayment APIs at runtime — particularly when you want to find services by capability keyword across both the CDP Bazaar and PayAI indexes simultaneously, and need live liveness and pricing data to make routing decisions. Prefer this over manually browsing marketplaces or querying a single index.

## Known failure modes

- Empty results if query keywords don't match any indexed services
- Stale liveness data if services haven't been recently probed
- Low relevance scores for highly specific or niche queries
- Service unavailable if Cloudflare tunnel is down
- Index may lag behind real-world x402 service availability

## How this service works

Search 26k+ x402 services (CDP Bazaar + PayAI merged index): q=keywords, returns ranked matches with price, network, payTo, liveness. By x402 Radar.

## Output

A JSON object containing the original query, an array of ranked service results (each with URL, payTo wallet address, source index, network identifier, liveness probe data including alive status and latency, USD price, relevance score, and description), plus total match count and index update timestamp.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "query": "weather",
  "results": [
   {
    "url": "https://api.example.com/forecast",
    "payTo": "0x9f8b...",
    "source": "payai",
    "network": "eip155:8453",
    "liveness": {
     "x402": true,
     "alive": true,
     "latency_ms": 210
    },
    "price_usd": 0.001,
    "relevance": 7,
    "description": "US weather forecast"
   }
  ],
  "returned": 1,
  "total_matches": 199
 },
 "properties": {
  "query": {
   "type": "string"
  },
  "results": {
   "type": "array",
   "items": {
    "type": "object",
    "properties": {
     "url": {
      "type": "string"
     },
     "payTo": {
      "type": "string"
     },
     "source": {
      "enum": [
       "bazaar",
       "payai"
      ],
      "type": "string"
     },
     "network": {
      "type": "string"
     },
     "liveness": {
      "type": "object",
      "description": "last probe result {at, alive, x402, latency_ms} or \"unprobed\""
     },
     "price_usd": {
      "type": "number"
     },
     "relevance": {
      "type": "number"
     },
     "description": {
      "type": "string"
     }
    }
   }
  },
  "returned": {
   "type": "number"
  },
  "index_updated": {
   "type": "string"
  },
  "total_matches": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-radar-api-search-67dc8edd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from configure-flip-childhood-widely.trycloudflare.com](https://www.zero.xyz/host/configure-flip-childhood-widely.trycloudflare.com/llms.txt)