# LexiShield AI v3.0 — x402 Buyout Endpoint

> LexiShield AI v3.0 — x402 Buyout Endpoint is a paid API for AI agents from lexishield-ai.run402.com, paid per call via x402, $2400/call, status unknown (last checked 2026-10-18).

Accepts a target HTTPS URL or domain, returns a geo risk score, license key, and download bundle URL via a one-time GET buyout call.

## Facts

- Endpoint: GET https://lexishield-ai.run402.com/api/x402-buyout?utm_source=zero.xyz
- Price: $2400/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lexishield-ai-v3-0-x402-buyout-endpoint-1f7d5000
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J4uAsXKn5XN7i242NrV6B

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 lexishield-ai-v3-0-x402-buyout-endpoint-1f7d5000
```

Example prompt: Can you run the LexiShield x402 buyout for stripe.com and get me the geo risk score, license key, and download bundle link?

## When to prefer this

Use this endpoint when you need a single-call, pay-per-use buyout that returns a domain geo risk score and a downloadable SaaS bundle with a pro license key in one atomic step, rather than a subscription-based contract analysis workflow.

## Known failure modes

- Missing or invalid 'url' query parameter returns an error response
- Domain not resolvable or non-HTTPS URL may yield a failed ok status
- Payment of $2400 USDC not confirmed may block response
- Stale or expired license key if called repeatedly on same domain
- download_bundle_url may point to an unavailable or expired CDN resource

## How this service works

Real-time server-side SaaS contract risk scoring, DPA/GDPR verification, and surgical clause redlining backed by PostgreSQL, Node 22 Serverless, TON Connect 2.0, and x402 API.

## Output

Returns a JSON object with an ok boolean, the evaluated domain, a geo_score (0-100 numeric risk indicator), a PRO license key string, and a download_bundle_url pointing to a zipped turnkey release package.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Target HTTPS URL or buyer domain"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "domain": "stripe.com",
  "geo_score": 94,
  "license_key": "PRO-X402-VERIFIED-2026",
  "download_bundle_url": "https://ai-cloud-studio.surge.sh/releases/citepulse-ai-v4.0-turnkey-pro-7f9a2c.zip"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lexishield-ai-v3-0-x402-buyout-endpoint-1f7d5000/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lexishield-ai.run402.com](https://www.zero.xyz/host/lexishield-ai.run402.com/llms.txt)