# Vulnerability Intelligence – Single Advisory Lookup

> Vulnerability Intelligence – Single Advisory Lookup is a paid API for AI agents from vuln-intel.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Retrieves a single security advisory by GHSA or CVE ID, returning severity, affected packages and version ranges, fixed versions, and exploitation status.

## Facts

- Endpoint: GET https://vuln-intel.x402tookit.com/vuln-advisory?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vulnerability-intelligence-single-advisory-lookup-1648ce25
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oI-dcDjlxBGPqWAUXErwk

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 vulnerability-intelligence-single-advisory-lookup-1648ce25
```

Example prompt: Can you pull up the full advisory for CVE-2021-44228 — I need the severity, which packages and version ranges are affected, what versions fix it, and whether it's been exploited in the wild?

## When to prefer this

Use this endpoint when you have a specific CVE or GHSA ID and need comprehensive advisory details in one call — including severity, affected version ranges, fixed versions, and exploitation status. Prefer this over batch package-check endpoints when your query is ID-driven rather than package-version-driven, and over the CISA KEV endpoint when you need full advisory metadata beyond just known-exploited status.

## Known failure modes

- Invalid or malformed advisory ID returns an error or null result
- Unknown CVE/GHSA ID not in database returns empty or null advisory
- Network timeout on external data source fetch causes degraded or partial response
- Degraded flag set to true when upstream data source is unavailable
- Advisory exists but has no affected package data if upstream is incomplete

## How this service works

One security advisory by GHSA or CVE id: severity, affected packages and ranges, fixed versions and exploited flag.

## Output

Returns a structured advisory record including: advisory ID, severity level, CVSS score vectors, CWE identifiers, list of affected packages with their ecosystem (npm, PyPI, Go, Maven, etc.), introduced and fixed version ranges, exploitation-in-the-wild flag, published and modified dates, aliases (e.g. cross-referenced GHSA/CVE IDs), summary text, and reference URLs. May include an EPSS-based verdict and a disclaimer if data is degraded or incomplete.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "id"
     ],
     "properties": {
      "id": {
       "type": "string",
       "description": "Advisory id: GHSA-xxxx-xxxx-xxxx or CVE-YYYY-NNNN"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "id": {
       "type": [
        "null",
        "string"
       ]
      },
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "cvss": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "object",
        "properties": {
         "type": {
          "type": [
           "null",
           "string"
          ]
         },
         "vector": {
          "type": [
           "null",
           "string"
          ]
         }
        }
       }
      },
      "cwes": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "aliases": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "affected": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "object",
        "properties": {
         "name": {
          "type": [
           "null",
           "string"
          ]
         },
         "fixed": {
          "type": [
           "array",
           "null"
          ],
          "items": {
           "type": "string"
          }
         },
         "ecosystem": {
 
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vulnerability-intelligence-single-advisory-lookup-1648ce25/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vuln-intel.x402tookit.com](https://www.zero.xyz/host/vuln-intel.x402tookit.com/llms.txt)