# Vextorium Package Vulnerability Lookup

> Vextorium Package Vulnerability Lookup is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-13).

Returns known security vulnerabilities (CVE/GHSA) for a software package at a given version, sourced from Google's OSV.dev database, covering npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist, and more.

## Facts

- Endpoint: POST https://api.vextorium.com/vulnerabilidades-paquete-pago?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-package-vulnerability-lookup-8df8737b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PXZNAmjVNh_Mmk4jFQWgT

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 vextorium-package-vulnerability-lookup-8df8737b -d '<json body>'
```

Example prompt: Check if lodash version 4.17.15 on npm has any known security vulnerabilities — I need the CVE IDs, severity levels, and which versions fix them.

## When to prefer this

Use this endpoint when you need structured, per-package vulnerability data pulled directly from the authoritative OSV.dev database across a wide range of ecosystems (npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist, Hex, Pub). It is especially useful for automated dependency auditing in CI/CD pipelines, security reviews, or when building an agent that needs to assess whether a specific package version is safe to use, without requiring access to a local vulnerability scanner or a GitHub token.

## Known failure modes

- Unknown package or ecosystem returns empty vulnerability list
- Misspelled ecosystem name may cause lookup failure
- Version not found may return all-version vulnerabilities instead of version-specific ones
- Rate limiting or payment failure returns error
- OSV.dev upstream unavailability causes timeout or empty response

## How this service works

Known vulnerabilities of a software package (npm, PyPI, Go, Maven, crates.io, NuGet, RubyGems, Packagist...) at a given version or overall: CVE/GHSA ids, summary, severity, publication date and fixed versions. Google's OSV.dev database.

## Output

Returns a JSON object with the package name, ecosystem, version queried, total vulnerability count, a verdict string (in Spanish), the OSV.dev source attribution, and a detailed list of vulnerabilities each containing GHSA/CVE IDs, aliases, summary, severity level, publication date, and the versions in which the issue was fixed.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "paquete",
      "ecosistema"
     ],
     "properties": {
      "paquete": {
       "type": "string"
      },
      "version": {
       "type": "string"
      },
      "ecosistema": {
       "type": "string",
       "description": "npm, pypi, cargo, go, maven, nuget, rubygems, packagist, hex, pub"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": [
      "object",
      "null"
     ],
     "properties": {
      "fuente": {
       "type": [
        "string",
        "null"
       ]
      },
      "detalle": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": [
         "null",
         "object"
        ],
        "properties": {
         "id": {
          "type": [
           "null",
           "string"
          ]
         },
         "alias": {
          "type": [
           "array",
           "null"
          ],
          "items": {
           "type": [
            "null",
            "string"
           ]
          }
         },
         "resumen": {
          "type": [
           "null",
           "string"
          ]
         },
         "gravedad": {
          "type": [
           "null",
           "string"
          ]
         },
         "publicada": {
          "type": [
           "null",
           "string"
          ]
         },
         "corregida_en": {
          "type": [
           "array",
           "null"
          ],
          "items": {
           "type": [
            "null",
            "string"
           ]
          }
         }
        }
       }
      },
      "paquete": {
       "type": [
        "string",
        "null"
       ]
      },
      "version": {
       "type": [
        "string",
        "null"
       ]
      },
      "veredicto": {
       "type": [
 
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "fuente": "OSV.dev (CC BY 4.0)",
  "detalle": [
   {
    "id": "GHSA-35jh-r3h4-6jhm",
    "alias": [
     "CVE-2021-23337",
     "CVE-2026-4800"
    ],
    "resumen": "Command Injection in lodash",
    "gravedad": "HIGH",
    "publicada": "2021-05-06",
    "corregida_en": [
     "4.17.21"
    ]
   },
   {
    "id": "GHSA-p6mc-m468-83gw",
    "alias": [
     "CVE-2020-8203"
    ],
    "resumen": "Prototype Pollution in lodash",
    "gravedad": "HIGH",
    "publicada": "2020-07-15",
    "corregida_en": [
     "4.17.19",
     "4.17.20"
    ]
   }
  ],
  "paquete": "lodash",
  "version": "4.17.15",
  "veredicto": "6 vulnerabilidades conocidas: actualiza a una versión corregida",
  "ecosistema": "npm",
  "vulnerabilidades": 6
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-package-vulnerability-lookup-8df8737b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)