# NPM Registry Scraper — Packages, Maintainers, Scores & Tech (`spotless_studios/npm-packages-scraper`) Actor

Scrape JavaScript and TypeScript packages from NPM. Extract package metadata, maintainer email addresses, popularity scores, quality ratings, dependencies, and repository links.

- **URL**: https://apify.com/spotless_studios/npm-packages-scraper.md
- **Developed by:** [Spotless Studios](https://apify.com/spotless_studios) (community)
- **Categories:** Developer tools, Lead generation
- **Security:** Limited permissions
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $1.00 / 1,000 npm package extracteds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## NPM Registry Packages, Maintainers & Scores Scraper

Extract structured JavaScript/TypeScript package metrics, maintainer contact emails, release history, popularity/quality/maintenance scores, keywords, and repository links from the official NPM Registry.

### Features

- **Rich Package Metrics**: Extracts package name, version, description, author name and email, publisher username, active maintainers, GitHub repository URL, and NPM composite scores.
- **Custom Ranking Strategies**: Search by `optimal` (balanced), `popularity` (most downloaded), `quality` (code health), or `maintenance` (frequently updated).
- **Maintainer Lead Generation**: Captures verified maintainer usernames and public emails for developer outreach and B2B tech recruiting.
- **Dependency & Ecosystem Monitoring**: Use `onlyNewItems` with a `stateKey` to automatically get notified whenever new packages matching your tech stack or niche are published.
- **High-Throughput Execution**: Lightweight JSON queries consuming minimal memory (128 MB), completely bypasses DOM scraping and headless browser costs.

### Input Parameters

| Parameter | Type | Default | Description |
|---|---|---|---|
| `searchQuery` | String | `"crawler"` | Package keyword, topic, or search term |
| `author` | String | `""` | Filter by specific author/publisher username |
| `ranking` | String | `"optimal"` | `optimal`, `popularity`, `quality`, or `maintenance` |
| `minScore` | Number | `0` | Minimum overall score threshold (0.0 to 1.0) |
| `packageNames` | Array | `[]` | Specific package names (e.g. `["crawlee", "apify"]`) |
| `maxResults` | Integer | `100` | Maximum packages to extract |
| `onlyNewItems` | Boolean | `false` | Monitoring mode: only emit newly discovered packages |
| `outputPreset` | String | `"full"` | `full`, `lean`, or `contacts` |

### Output Example

```json
{
  "name": "crawlee",
  "scope": null,
  "version": "3.12.0",
  "description": "The scalable web scraping and crawling library for Node.js",
  "keywords": ["crawler", "scraper", "headless", "apify"],
  "date": "2026-10-20T14:22:00.000Z",
  "npmUrl": "https://www.npmjs.com/package/crawlee",
  "authorName": "Apify Technologies",
  "publisherUsername": "apify-bot",
  "maintainers": [
    { "username": "mnmkng", "email": "dev@apify.com" }
  ],
  "homepage": "https://crawlee.dev",
  "repositoryUrl": "https://github.com/apify/crawlee",
  "scoreFinal": 0.94,
  "scoreQuality": 0.98,
  "scorePopularity": 0.92,
  "scoreMaintenance": 0.95,
  "scrapedAt": "2026-10-27T12:00:00.000Z"
}
```

***

### More from Spotless Studios

**[All actors on Apify](https://apify.com/spotless_studios)** · Support: spotless.studios.info@gmail.com

| Actor | Best for |
|-------|----------|
| [SLED Government Bids](https://apify.com/spotless_studios/sled-procurement-scraper) | Daily US gov RFP / bid alerts |
| [Webflow Experts](https://apify.com/spotless_studios/webflow-experts-scraper) | Webflow agency & freelancer leads |
| [Stripe Partners](https://apify.com/spotless_studios/stripe-partners-scraper) | Stripe implementation partner lists |
| [UK Planning Applications](https://apify.com/spotless_studios/uk-planning-applications-scraper) | UK planning leads + agent contacts |
| [Product Hunt](https://apify.com/spotless_studios/product-hunt-scraper) | Every PH launch + makers / websites |
| [Duunitori Jobs](https://apify.com/spotless_studios/duunitori-jobs-scraper) | Finland job listings |
| [Clutch Agencies](https://apify.com/spotless_studios/clutch-agencies-scraper) | Clutch agency prospecting |
| [Skool Communities](https://apify.com/spotless_studios/skool-communities-scraper) | Skool community & creator leads |

# Actor input Schema

## `searchQuery` (type: `string`):

Search query or NPM qualifiers (e.g. 'mcp server', 'openai sdk', 'keywords:playwright').

## `searchQueries` (type: `array`):

Optional list of multiple search queries to run sequentially in a single job.

## `author` (type: `string`):

Filter packages by NPM author or maintainer username (e.g. 'sindresorhus').

## `scope` (type: `string`):

Filter by NPM organization scope (e.g. '@modelcontextprotocol', '@langchain', '@types').

## `ranking` (type: `string`):

Weight search results by optimal balance, popularity, quality, or maintenance.

## `minScore` (type: `number`):

Only keep packages with final score at least this value (e.g. 0.4).

## `minPopularity` (type: `number`):

Minimum popularity sub-score.

## `minQuality` (type: `number`):

Minimum quality sub-score.

## `minMaintenance` (type: `number`):

Minimum maintenance sub-score.

## `updatedAfter` (type: `string`):

Only return packages updated after this date (YYYY-MM-DD, ISO, or relative like '30 days' / '6 months').

## `packageNames` (type: `array`):

Scrape specific NPM packages directly by name or URL (e.g. 'axios', '@anthropic-ai/sdk', 'https://www.npmjs.com/package/zod').

## `includeDetails` (type: `boolean`):

Fetch each package's latest manifest and download counter to add weeklyDownloads, license, dependenciesCount, dependencies, hasTypes, enginesNode, and unpackedSizeBytes.

## `includeKeywords` (type: `array`):

Keep only packages matching these keywords or /regex/ in name, description, or keywords.

## `excludeKeywords` (type: `array`):

Skip packages matching any of these keywords or /regex/.

## `keywordMatch` (type: `string`):

Require any or all includeKeywords to match.

## `onlyNewItems` (type: `boolean`):

Remember seen package names across runs and emit only newly discovered packages.

## `stateKey` (type: `string`):

Separate state key per saved search or schedule.

## `maxResults` (type: `integer`):

Maximum number of packages to save.

## `outputPreset` (type: `string`):

Choose full record, lean summary, or contacts & links only.

## `outputFields` (type: `array`):

Keep only these specific fields in each saved record.

## `excludeFields` (type: `array`):

Remove specific fields from each saved record.

## `includeEmptyFields` (type: `boolean`):

When disabled, strips null and empty values from each saved record.

## `requiredFields` (type: `array`):

Only save records where every listed field has a non-empty value (e.g. publisherEmail, repositoryUrl).

## `maxPages` (type: `integer`):

Maximum search pages per query (100 packages per page).

## `maxConcurrency` (type: `integer`):

Parallel requests when fetching direct package names.

## `maxRequestRetries` (type: `integer`):

Retries per failed HTTP request.

## `requestTimeoutSecs` (type: `integer`):

Timeout per HTTP request.

## `proxyConfiguration` (type: `object`):

Optional proxy settings.

## `proxyEscalation` (type: `boolean`):

Automatically step up from direct to Apify datacenter/residential proxies if blocked.

## Actor input object example

```json
{
  "searchQuery": "mcp server",
  "ranking": "optimal",
  "includeDetails": false,
  "keywordMatch": "any",
  "onlyNewItems": false,
  "stateKey": "default",
  "maxResults": 50,
  "outputPreset": "full",
  "includeEmptyFields": true,
  "maxPages": 15,
  "maxConcurrency": 5,
  "maxRequestRetries": 3,
  "requestTimeoutSecs": 30,
  "proxyConfiguration": {
    "useApifyProxy": false
  },
  "proxyEscalation": true
}
```

# Actor output Schema

## `items` (type: `string`):

Scrape JavaScript and TypeScript packages from NPM. Extract package metadata, maintainer email addresses, popularity scores, quality ratings, dependencies, and repository links.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "searchQuery": "mcp server",
    "maxResults": 50,
    "proxyConfiguration": {
        "useApifyProxy": false
    }
};

// Run the Actor and wait for it to finish
const run = await client.actor("spotless_studios/npm-packages-scraper").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {
    "searchQuery": "mcp server",
    "maxResults": 50,
    "proxyConfiguration": { "useApifyProxy": False },
}

# Run the Actor and wait for it to finish
run = client.actor("spotless_studios/npm-packages-scraper").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "searchQuery": "mcp server",
  "maxResults": 50,
  "proxyConfiguration": {
    "useApifyProxy": false
  }
}' |
apify call spotless_studios/npm-packages-scraper --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,spotless_studios/npm-packages-scraper"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/YdZFYnj4STDwxeZ8f/builds/5MEc8gFUbsjMOZCSE/openapi.json