# SignalDesk AI CVE Lookup

> SignalDesk AI CVE Lookup is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-13).

Fetches CVE vulnerability details including CVSS score, description, and severity rating for a given CVE identifier

## Facts

- Endpoint: GET https://x402-agent.kariguetoazul.workers.dev/api/cve?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-cve-lookup-bfe83d93
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9GUtOLTt2RTU8JGVBKg3y

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 signaldesk-ai-cve-lookup-bfe83d93
```

Example prompt: Can you look up CVE-2021-44228 for me and tell me its CVSS score and severity level?

## When to prefer this

Use this endpoint when you need quick, structured CVE data (CVSS score + severity + description) for a specific CVE ID and are operating in an agent pipeline that supports x402 micropayments. It is well-suited for lightweight, per-lookup vulnerability enrichment at low cost ($0.003/call) without needing to maintain a local CVE database or NVD API key.

## Known failure modes

- Invalid or malformed CVE ID format returns an error response
- CVE not found in the database returns empty or null data
- Missing required 'cve' query parameter causes a 400-level error
- Service quota exceeded results in request rejection
- Payment not processed (x402) results in 402 Payment Required response

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

A JSON object containing the CVE identifier, CVSS numerical score (0-10), a description of the vulnerability, and a severity rating (e.g. CRITICAL, HIGH, MEDIUM, LOW).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "cve"
     ],
     "properties": {
      "cve": {
       "type": "string",
       "description": "CVE identifier, e.g. CVE-2021-44228"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "cve": "CVE-2021-44228",
  "cvss": 10,
  "descricao": "...",
  "severidade": "CRITICAL"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-cve-lookup-bfe83d93/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)