NPM package metadata API

Get npm package metadata: latest version, license, dependency counts, publish time, and repository links. Answers queries like 'latest version of fastify', 'what license does this package use', 'is this npm package maintained'.

Price$0.01per request

MethodGET

Route/v1/dev/npm-package/:name

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache300s public

devnpmpackagedependenciesversionlicensedeveloper-toolsregistry

API URLhttps://x402.hexl.dev/v1/dev/npm-package/:name

Integration docs

Example request

{
  "name": "fastify"
}

Example response

{
  "name": "fastify",
  "latestVersion": "5.0.0",
  "license": "MIT",
  "repositoryUrl": "https://github.com/fastify/fastify",
  "dependencyCount": 12,
  "devDependencyCount": 34,
  "latestPublishedAt": "2026-01-01T00:00:00.000Z"
}

Input schema

{
  "type": "object",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "minLength": 1,
      "examples": [
        "fastify"
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "required": [
    "name",
    "latestVersion",
    "dependencyCount"
  ],
  "properties": {
    "name": {
      "type": "string"
    },
    "latestVersion": {
      "type": "string"
    },
    "license": {
      "type": [
        "string",
        "null"
      ]
    },
    "repositoryUrl": {
      "type": [
        "string",
        "null"
      ]
    },
    "dependencyCount": {
      "type": "number"
    },
    "devDependencyCount": {
      "type": "number"
    },
    "latestPublishedAt": {
      "type": [
        "string",
        "null"
      ]
    }
  }
}