Pub.dev MCP Server

A Model Context Protocol (MCP) server for pub.dev, the official package repository for Dart and Flutter.
It allows AI assistants to search, analyze, and retrieve detailed information about Dart/Flutter packages.

✨ Features

• 🔍 Package Search – Advanced filtering & sorting
• 📦 Package Information – Metadata, dependencies, statistics
• 🔄 Version Management – Check updates, compare versions, track history
• 📚 Documentation Access – README, changelog, examples, API docs
• ⚡ Caching – Built-in 5-minute intelligent cache
• 🛠 Dependency Analysis – Compare dependencies between versions

📦 Installation

NPM (Recommended)

npm install -g @devqxi/pubdev-mcp-server

From Source

git clone https://github.com/devqxi/pubdev-mcp-server.git
cd pubdev-mcp-server
npm install
npm run build
npm run start

⚙️ Configuration

Claude Desktop

1. Locate your configuration file:

   • Windows: %APPDATA%\Claude\claude_desktop_config.json
   • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
   • Linux: ~/.config/Claude/claude_desktop_config.json

2. Add:

{
  "mcpServers": {
    "pubdev": {
      "command": "npx",
      "args": ["@devqxi/pubdev-mcp-server"]
    }
  }
}

3. Restart Claude Desktop.

Local Build Example:

{
  "mcpServers": {
    "pubdev": {
      "command": "node",
      "args": ["/path/to/pubdev-mcp-server/dist/pubdev-mcp.js"]
    }
  }
}

Other MCP Clients:

npx @devqxi/pubdev-mcp-server

🛠 Available Tools

| Tool | Description | Key Parameters | |------|-------------|----------------| | get_package_info | Retrieve package metadata, stats, dependencies, publishers | packageName | | search_packages | Search with filters and sorting | query, sort, page | | check_package_updates | Check if updates are available | packageName, currentVersion | | get_package_versions | Get version history | packageName, limit | | get_documentation_changes | Get README, changelog, examples, API docs | packageName, version, docType | | compare_package_versions | Compare dependencies & changes between versions | packageName, fromVersion, toVersion |

📖 Example Commands

• Search Packages
  "Search for state management packages sorted by popularity"

• Package Details
  "Get information about the flutter_bloc package"

• Check Updates
  "Check if provider has updates from version 6.0.0"

• Get Docs
  "Get the changelog for dio version 4.0.0"

• Compare Versions
  "Compare dependencies between http 2.0.0 and 3.0.0"

💻 Development

git clone https://github.com/devqxi/pubdev-mcp-server.git
cd pubdev-mcp-server
npm install
npm run build
npm run start

Test with MCP Inspector:

npx @modelcontextprotocol/inspector npx @devqxi/pubdev-mcp-server

🌐 API Reference

• https://pub.dev/api/packages/{package}
• https://pub.dev/api/search
• https://pub.dev/api/packages/{package}/versions
• https://pub.dev/packages/{package}/{version}/{doc-type}

🛡 Error Handling

• Graceful handling of network & API failures
• Clear errors for invalid/non-existent packages
• Built-in delays for respectful rate limiting
• Detailed validation messages for malformed requests

🤝 Contributing

1. Fork & branch (git checkout -b feature/amazing-feature)
2. Install deps (npm install)
3. Build & test (npm run build && npm test)
4. Commit & push (git commit -m 'Add feature' && git push)
5. Open a Pull Request

📜 License

MIT – See LICENSE

📢 Support

• GitHub Issues
• Wiki
• Discussions

🆕 Changelog

v1.0.0

• Initial release
• All major pub.dev API endpoints supported
• Caching & error handling implemented
• Full MCP protocol compliance