MCP server for package version checking, quality rating, and llms.txt documentation across PyPI, npm, pub.dev, and crates.io
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"mcp-package-hero","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Attributed to the source that supplied each field. Treated as claims, not facts.
# 🦸 MCP Package Hero [](https://pypi.org/project/mcp-package-hero/) [](https://www.python.org/downloads/) [](https://github.com/jlowin/fastmcp) [](https://opensource.org/licenses/MIT) [](https://github.com/moinsen-dev/mcp-package-hero) [](https://github.com/moinsen-dev/mcp-package-hero) [](https://github.com/moinsen-dev/mcp-package-hero) > A comprehensive Model Context Protocol (MCP) server for checking package versions and rating package quality across Python (PyPI), JavaScript/TypeScript (npm), Dart (pub.dev), and Rust (crates.io). ## 🎯 Purpose MCP Package Hero helps you make informed decisions about packages by providing: - **Version Information**: Get the latest stable version of any package - **Quality Ratings**: Comprehensive quality analysis across multiple dimensions - **llms.txt Documentation**: Fetch and generate LLM-friendly documentation files Package Hero focuses on four major ecosystems: - ✅ Python packages on PyPI - ✅ JavaScript/TypeScript packages on npm - ✅ Dart/Flutter packages on pub.dev - ✅ Rust packages on crates.io ## 🚀 Features ### Version Checking - **Simple API**: Get latest version for one or multiple packages - **Fast**: Sub-second response times with async operations - **Batch Support**: Check up to 10 packages at once ### Quality Rating (v1.1.0+) - **Comprehensive Analysis**: Multi-dimensional package quality scoring - 🔧 **Maintenance Health** (35%): Release frequency, issue resolution, PR activity - 📊 **Popularity** (25%): Downloads, GitHub stars, community adoption…
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Every source is kept verbatim. Field changes are logged as events.