Repology Lookup

Query package version information from Repology across multiple repositories.

Endpoint

GET /api/v1/repology/:package

Path Parameters

Parameter	Type	Required	Description
package	string	Yes	Package name to look up

Response

{
  "success": true,
  "data": {
    "package": "curl",
    "repositories": [
      {
        "repo": "nix_unstable",
        "version": "8.5.0",
        "status": "newest"
      },
      {
        "repo": "debian_12",
        "version": "7.88.1",
        "status": "outdated"
      },
      {
        "repo": "alpine_edge",
        "version": "8.5.0",
        "status": "newest"
      }
    ],
    "latestVersion": "8.5.0",
    "summary": {
      "totalRepos": 85,
      "newest": 42,
      "outdated": 38,
      "vulnerable": 5
    }
  },
  "timestamp": "2024-01-15T12:00:00.000Z"
}

Response Fields

Repository Object

Field	Type	Description
repo	string	Repository identifier
version	string	Package version in this repository
status	string	Version status: newest, outdated, devel, unique, vulnerable

Summary Object

Field	Type	Description
totalRepos	number	Total repositories tracking this package
newest	number	Repositories with the latest version
outdated	number	Repositories with outdated versions
vulnerable	number	Repositories with known vulnerable versions

Examples

Basic Lookup

curl "https://api.vulnpatch.dev/api/v1/repology/curl"

Query OpenSSL Versions

curl "https://api.vulnpatch.dev/api/v1/repology/openssl"

Code Examples

JavaScript

async function checkPackageVersion(packageName) {
  const response = await fetch(
    `https://api.vulnpatch.dev/api/v1/repology/${packageName}`
  );
  const { data } = await response.json();

  console.log(`Latest version: ${data.latestVersion}`);
  console.log(`Tracked in ${data.summary.totalRepos} repositories`);

  // Find nixpkgs version
  const nixpkgs = data.repositories.find(r => r.repo === 'nix_unstable');
  if (nixpkgs) {
    console.log(`Nixpkgs version: ${nixpkgs.version} (${nixpkgs.status})`);
  }
}

Python

import requests

def check_package_version(package_name):
    response = requests.get(
        f'https://api.vulnpatch.dev/api/v1/repology/{package_name}'
    )
    data = response.json()['data']

    print(f"Latest version: {data['latestVersion']}")
    print(f"Tracked in {data['summary']['totalRepos']} repositories")

    # Find nixpkgs version
    for repo in data['repositories']:
        if repo['repo'] == 'nix_unstable':
            print(f"Nixpkgs version: {repo['version']} ({repo['status']})")
            break

Use Cases

• Version comparison: Check if a package is up to date across distros
• Vulnerability triage: Identify which versions are affected
• Release tracking: Monitor when new versions are packaged

Package Name Format

Use the canonical package name (lowercase, no version suffix):

Input	Correct
python3	python
libssl-dev	openssl
nodejs18	nodejs

Errors

Package Not Found

{
  "success": false,
  "error": "Package 'nonexistent' not found on Repology"
}

Caching

This endpoint is cached for 1 hour. The X-Cache header indicates cache status.