# x402 Radar Conformance Probe

> x402 Radar Conformance Probe is a paid API for AI agents from con-suggests-dubai-lie.trycloudflare.com, paid per call via x402, $0.002/call, status down (last checked 2026-10-19).

Checks whether a given URL serves a valid x402 payment handshake and returns its price, asset, network, payTo address, and latency.

## Facts

- Endpoint: POST https://con-suggests-dubai-lie.trycloudflare.com/api/check?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-radar-conformance-probe-9186fe36
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8rNG_UZFGHDBqs1gHFU5U

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-conformance-probe-9186fe36 -d '<json body>'
```

Example prompt: Before I pay, check whether https://api.exa.ai/search is a real x402 endpoint — tell me if the handshake is valid, what it costs in USDC, which network it's on, and where the payment goes.

## When to prefer this

Use this endpoint when an AI agent or user needs to verify that a specific URL is a legitimate x402-compatible service before committing a payment. It is the right choice when you want to confirm price, network, asset, and payTo details rather than assuming they match a listing. Prefer it over trusting marketplace metadata alone, especially for high-value or unfamiliar endpoints.

## Known failure modes

- Target URL is unreachable — alive: false, no handshake data returned
- Target URL does not return a 402 status — x402: false
- Malformed or non-conformant 402 response — valid_handshake: false
- Probe itself times out — latency_ms may be absent or error returned
- Invalid or missing URL parameter in request body

## How this service works

Live x402 conformance probe: url=<endpoint>, returns whether it serves a valid 402 handshake, actual price/asset/network/payTo, latency. Verify before you pay. By x402 Radar.

## Output

Returns a JSON object indicating whether the target URL is alive, whether it returns a valid x402 402 status, the scheme (e.g. exact), network (e.g. base), asset, payTo wallet address, price in atomic units and USD-equivalent if USDC, x402 version, and round-trip latency in milliseconds.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "x402": true,
  "alive": true,
  "scheme": "exact",
  "status": 402,
  "checked": "https://api.exa.ai/search",
  "network": "base",
  "latency_ms": 340,
  "valid_handshake": true,
  "price_usd_if_usdc": 0.007
 },
 "properties": {
  "at": {
   "type": "string"
  },
  "x402": {
   "type": "boolean"
  },
  "alive": {
   "type": "boolean"
  },
  "asset": {
   "type": "string"
  },
  "payTo": {
   "type": "string"
  },
  "scheme": {
   "type": "string"
  },
  "status": {
   "type": "number"
  },
  "checked": {
   "type": "string"
  },
  "network": {
   "type": "string"
  },
  "latency_ms": {
   "type": "number"
  },
  "price_atomic": {
   "type": "string"
  },
  "x402_version": {
   "type": "number"
  },
  "valid_handshake": {
   "type": "boolean"
  },
  "price_usd_if_usdc": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-radar-conformance-probe-9186fe36/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from con-suggests-dubai-lie.trycloudflare.com](https://www.zero.xyz/host/con-suggests-dubai-lie.trycloudflare.com/llms.txt)