# npm Registry Intel: Packages, Releases & Maintainer Leads (`obsidian937/npm-registry-intel`) Actor Turn the npm registry into structured B2B data. Discover packages by keyword or scope, monitor releases of any package list, or build developer lead lists from maintainer emails. Official public npm API, no proxy, no auth. Delta mode for recurring monitoring. - **URL**: https://apify.com/obsidian937/npm-registry-intel.md - **Developed by:** [Obsidian IT Consulting SRL](https://apify.com/obsidian937) (community) - **Categories:** Developer tools, Lead generation, Jobs - **Stats:** 2 total users, 1 monthly users, 0.0% runs succeeded, 0 bookmarks - **User rating**: No ratings yet ## Pricing from $3.00 / 1,000 results 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/platform/actors/running/actors-in-store#pay-per-event ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. 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. Actors are written with capital "A". ## 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. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## npm Registry Intel: Packages, Releases & Maintainer Leads Turn the public npm registry into structured, B2B-ready data. Discover packages by keyword or scope, monitor releases across any package list, or build developer lead lists from maintainer contact emails. Built on the official public npm API: no proxy, no authentication, no rate-limit keys. ### Who uses this - **Developer-tool and SaaS teams** doing competitive intel: who ships in your category, how fast they release, how much reach they have. - **Recruiters and dev-relations teams** sourcing maintainers of widely-installed packages (high-intent technical leads with public contact emails). - **Security and supply-chain analysts** mapping dependency footprints and watching for new releases. - **Investors and market researchers** sizing an ecosystem by download volume and release cadence. ### Modes #### 1. Search packages (discovery / intel) Find packages by free-text query or qualifiers (`keywords:`, `scope:`, `author:`, `maintainer:`). Each result carries the package name, version, description, keywords, license, maintainer names and emails, repository, homepage, and npm quality / popularity / maintenance scores. Enable enrichment to add weekly downloads, created date, latest release date, version count, and dependency count. Filter by minimum downloads to keep only packages with real traction. #### 2. Package deep-dive / release monitor Pass an explicit list of package names to pull full metadata and download counts for each. In delta mode this becomes a release monitor: only packages whose latest version changed since the previous run are emitted, with the previous version included. Pair with a schedule and a webhook to get alerts when a dependency or a competitor ships. #### 3. Maintainer leads Pass an npm username to list every package that maintainer publishes, always enriched with contact email, repository, and download reach. A maintainer of widely-installed packages is a strong technical lead for recruiting, dev-tool sales, or partnerships. ### Delta / monitor mode Every mode supports `deltaMode`. State is kept per account between runs: - **Search / maintainer**: only packages that newly appear are emitted. - **Package**: only packages whose latest version changed are emitted. This makes the actor a recurring monitor rather than a one-shot scrape, which is the recurring-usage pattern you want behind a schedule. ### Example input ```json { "mode": "search", "keywords": "payments", "minDownloads": 5000, "downloadsPeriod": "last-week", "maxItems": 50 } ```` ```json { "mode": "package", "packages": ["express", "fastify", "@aws-sdk/client-s3"], "deltaMode": true } ``` ```json { "mode": "maintainer", "maintainer": "sindresorhus", "maxItems": 100 } ``` ### Output fields `name`, `version`, `description`, `keywords`, `license`, `publisherEmail`, `publisherUsername`, `maintainers` (name + email), `author`, `authorEmail`, `homepage`, `repository`, `npmUrl`, `weeklyDownloads`, `createdAt`, `modifiedAt`, `latestPublishedAt`, `versionsCount`, `dependenciesCount`, and npm `scorePopularity` / `scoreQuality` / `scoreMaintenance`. ### Part of the B2B data suite Combine with our other no-proxy intel actors for a full founder / VC / sales / dev dataset: - **GitHub Intel**: repositories, developer leads, stargazers / contributors. - **Hacker News Intel**: Who is Hiring jobs, Show HN launches, keyword monitor. - **Y Combinator Companies Scraper**: startups by batch and industry. - **IndieHackers Product Scraper**: products, revenue, founders. - **BetaList Startup Scraper**: upcoming startup launches and makers. - **SEC EDGAR Intel**: filings, XBRL financials, full-text search. ### Notes - Data comes from the official public npm registry (`registry.npmjs.org`) and download API (`api.npmjs.org`). No login or API key is required. - Email addresses are those published by maintainers in public package metadata. Use them in line with applicable anti-spam and data-protection rules. # Actor input Schema ## `mode` (type: `string`): What to extract: discover packages by search, deep-monitor a list of packages, or list a maintainer's packages as developer leads. ## `query` (type: `string`): Raw npm search text (search mode). Supports qualifiers: keywords:, scope:, author:, maintainer:. Example: "keywords:scraper" or "react table". Overrides the structured filters below. ## `keywords` (type: `string`): Filter by package keyword, e.g. "scraper", "payments" (search mode). ## `scope` (type: `string`): Restrict to an npm scope / org, e.g. "angular" or "@aws-sdk" (search mode). ## `author` (type: `string`): Restrict to a publishing author username (search mode). ## `maintainer` (type: `string`): npm username whose packages to list (maintainer mode). Also usable as a filter in search mode. ## `packages` (type: `array`): Explicit list of package names to deep-dive or monitor, e.g. \["express", "@aws-sdk/client-s3"] (package mode). ## `enrich` (type: `boolean`): Fetch full metadata + download counts for each result (created date, latest version, dependency count, weekly downloads). Costs two extra requests per package but produces actionable intel (search mode; always on for maintainer mode). ## `minDownloads` (type: `integer`): Only emit packages with at least this many downloads in the selected period (search mode; enables enrichment). ## `downloadsPeriod` (type: `string`): Window for the download count. ## `deltaMode` (type: `boolean`): Only emit changes since the previous run (per-account state). Search / maintainer: only packages that newly appear. Package: only packages whose latest version changed (release monitor). Pair with a schedule + webhook for recurring alerts. ## `maxItems` (type: `integer`): Cap on records to return (search / maintainer modes). ## Actor input object example ```json { "mode": "search", "query": "", "keywords": "", "scope": "", "author": "", "maintainer": "", "packages": [], "enrich": true, "minDownloads": 0, "downloadsPeriod": "last-week", "deltaMode": false, "maxItems": 50 } ``` # 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 '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = {}; // Run the Actor and wait for it to finish const run = await client.actor("obsidian937/npm-registry-intel").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 '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = {} # Run the Actor and wait for it to finish run = client.actor("obsidian937/npm-registry-intel").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{}' | apify call obsidian937/npm-registry-intel --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=obsidian937/npm-registry-intel", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "npm Registry Intel: Packages, Releases & Maintainer Leads", "description": "Turn the npm registry into structured B2B data. Discover packages by keyword or scope, monitor releases of any package list, or build developer lead lists from maintainer emails. Official public npm API, no proxy, no auth. Delta mode for recurring monitoring.", "version": "1.0", "x-build-id": "JmhSapS1LlbiGahi7" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/obsidian937~npm-registry-intel/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-obsidian937-npm-registry-intel", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/obsidian937~npm-registry-intel/runs": { "post": { "operationId": "runs-sync-obsidian937-npm-registry-intel", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/obsidian937~npm-registry-intel/run-sync": { "post": { "operationId": "run-sync-obsidian937-npm-registry-intel", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "properties": { "mode": { "title": "Mode", "enum": [ "search", "package", "maintainer" ], "type": "string", "description": "What to extract: discover packages by search, deep-monitor a list of packages, or list a maintainer's packages as developer leads.", "default": "search" }, "query": { "title": "Search query (raw)", "type": "string", "description": "Raw npm search text (search mode). Supports qualifiers: keywords:, scope:, author:, maintainer:. Example: \"keywords:scraper\" or \"react table\". Overrides the structured filters below.", "default": "" }, "keywords": { "title": "Keywords", "type": "string", "description": "Filter by package keyword, e.g. \"scraper\", \"payments\" (search mode).", "default": "" }, "scope": { "title": "Scope", "type": "string", "description": "Restrict to an npm scope / org, e.g. \"angular\" or \"@aws-sdk\" (search mode).", "default": "" }, "author": { "title": "Author", "type": "string", "description": "Restrict to a publishing author username (search mode).", "default": "" }, "maintainer": { "title": "Maintainer (npm username)", "type": "string", "description": "npm username whose packages to list (maintainer mode). Also usable as a filter in search mode.", "default": "" }, "packages": { "title": "Packages", "type": "array", "description": "Explicit list of package names to deep-dive or monitor, e.g. [\"express\", \"@aws-sdk/client-s3\"] (package mode).", "default": [], "items": { "type": "string" } }, "enrich": { "title": "Enrich packages", "type": "boolean", "description": "Fetch full metadata + download counts for each result (created date, latest version, dependency count, weekly downloads). Costs two extra requests per package but produces actionable intel (search mode; always on for maintainer mode).", "default": true }, "minDownloads": { "title": "Minimum weekly downloads", "type": "integer", "description": "Only emit packages with at least this many downloads in the selected period (search mode; enables enrichment).", "default": 0 }, "downloadsPeriod": { "title": "Downloads period", "enum": [ "last-day", "last-week", "last-month" ], "type": "string", "description": "Window for the download count.", "default": "last-week" }, "deltaMode": { "title": "Delta / monitor mode", "type": "boolean", "description": "Only emit changes since the previous run (per-account state). Search / maintainer: only packages that newly appear. Package: only packages whose latest version changed (release monitor). Pair with a schedule + webhook for recurring alerts.", "default": false }, "maxItems": { "title": "Max items", "type": "integer", "description": "Cap on records to return (search / maintainer modes).", "default": 50 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```