Discover Awesome MCP Servers

LinkedIn Profile Analyzer MCP

Enables users to fetch, analyze, and manage LinkedIn posts data through tools that retrieve profiles, search posts by keywords, filter by date, and identify top-performing content based on engagement metrics.

Salesforce DX MCP Server

Enables secure interaction with Salesforce orgs through LLMs, providing tools for managing orgs, querying data, deploying metadata, running tests, and performing code analysis with granular access control and encrypted authentication.

MetaMCP MCP Server

镜子 (jìng zi)

ClickUp MCP Server

Enables interaction with ClickUp project management platform through the Model Context Protocol, providing tools for task management, team collaboration, and workspace operations with flexible authentication support.

MCP Boilerplate

A minimal, production-ready MCP server with a simple addition calculator tool that demonstrates integration with the Model Context Protocol.

Mcp Todo App

一个结合了 MCP 服务器和客户端，并为简单的待办事项应用添加了一点 AI 功能的组合。

crypto-pegmon-mcp

crypto-pegmon-mcp

Weather MCP Server

This is a tutorial repo about MCP server and client

whistle-mcp

Whistle MCP Server 是一个基于模型上下文协议 (MCP) 协议的 Whistle 代理管理工具，它使 AI 助手能够直接操作和控制本地 Whistle 代理服务器。 通过此工具，AI 可以帮助用户管理规则、群组、值，监控网络请求以及重放请求。

Dropbox MCP Server by CData

This read-only MCP Server allows you to connect to Dropbox data from Claude Desktop through CData JDBC Drivers. Free (beta) read/write servers available at https://www.cdata.com/solutions/mcp

SQL Server Express MCP Server

通过自然语言 MCP 命令，促进与 Microsoft SQL Server Express 的交互，支持数据库操作，例如查询、表管理和模式检查。

VLC MCP Server

一个 MCP (模型上下文协议) 服务器，用于使用 VLC 播放和控制电影。

MCP Middleware Adapter for Express Servers

Okay, here's a breakdown of how to run multiple Minecraft Protocol (MCP) clients on a NodeJS Express server, acting as an adapter or middleware. This is a complex topic, so I'll break it down into key concepts and provide code snippets to illustrate the ideas. **Core Concepts** 1. **Minecraft Protocol (MCP) Clients:** These are libraries (like `minecraft-protocol` or `prismarine-proxy`) that handle the low-level communication with Minecraft servers. You'll need to choose one and understand its API. 2. **NodeJS Express Server:** This provides the HTTP endpoint(s) that your users/applications will interact with. It acts as the intermediary between the outside world and your Minecraft clients. 3. **Client Management:** You need a way to keep track of each MCP client instance. A simple object or array can work, but for more complex scenarios, consider a more robust data structure. 4. **Proxying/Adapting:** The Express server will receive requests, determine which MCP client should handle the request, and then forward the request (or a modified version of it) to the appropriate Minecraft server. The response from the Minecraft server is then sent back to the original requester. 5. **Authentication/Authorization:** Crucially important. You need to ensure that only authorized users can control specific Minecraft clients. This might involve API keys, user accounts, or other authentication mechanisms. 6. **Error Handling:** Robust error handling is essential. Minecraft servers can be unreliable, and network issues can occur. Your Express server needs to gracefully handle these errors and provide informative feedback to the user. **Example Structure (Conceptual)** ``` / ├── server.js // Main Express server file ├── mcp_manager.js // Manages MCP client instances ├── routes/ │ └── minecraft.js // Routes for interacting with Minecraft clients └── config.js // Configuration settings ``` **1. Project Setup** ```bash mkdir minecraft-proxy cd minecraft-proxy npm init -y npm install express minecraft-protocol // Or prismarine-proxy, etc. ``` **2. `config.js` (Configuration)** ```javascript module.exports = { minecraftServers: [ { id: 'server1', host: 'minecraft.example.com', port: 25565 }, { id: 'server2', host: 'another.minecraft.net', port: 25565 } ], apiKeys: { 'user1': 'some-secret-key', 'user2': 'another-secret-key' } }; ``` **3. `mcp_manager.js` (MCP Client Management)** ```javascript const mc = require('minecraft-protocol'); const config = require('./config'); class MCPManager { constructor() { this.clients = {}; // Store MCP client instances } createClient(serverId, username, password) { const serverConfig = config.minecraftServers.find(s => s.id === serverId); if (!serverConfig) { throw new Error(`Server with ID ${serverId} not found.`); } const client = mc.createClient({ host: serverConfig.host, port: serverConfig.port, username: username, password: password // Handle authentication appropriately }); this.clients[serverId] = client; client.on('connect', () => { console.log(`Connected to ${serverId}`); }); client.on('disconnect', (packet) => { console.log(`Disconnected from ${serverId}: ${packet.reason}`); delete this.clients[serverId]; // Remove client on disconnect }); client.on('error', (err) => { console.error(`Error on ${serverId}: ${err}`); delete this.clients[serverId]; // Remove client on error }); return client; } getClient(serverId) { return this.clients[serverId]; } removeClient(serverId) { if (this.clients[serverId]) { this.clients[serverId].end(); // Disconnect the client delete this.clients[serverId]; } } } module.exports = new MCPManager(); ``` **4. `routes/minecraft.js` (Express Routes)** ```javascript const express = require('express'); const router = express.Router(); const mcpManager = require('../mcp_manager'); const config = require('../config'); // Middleware to authenticate API key const authenticate = (req, res, next) => { const apiKey = req.headers['x-api-key']; const userId = req.query.userId; // Or get from body, params, etc. if (!apiKey || !userId || config.apiKeys[userId] !== apiKey) { return res.status(401).json({ error: 'Unauthorized' }); } req.userId = userId; // Store user ID for later use next(); }; // Route to create a Minecraft client router.post('/client/:serverId', authenticate, (req, res) => { const serverId = req.params.serverId; const username = req.body.username; const password = req.body.password; try { const client = mcpManager.createClient(serverId, username, password); res.status(201).json({ message: `Client created for ${serverId}` }); } catch (error) { console.error(error); res.status(500).json({ error: error.message }); } }); // Route to send a chat message router.post('/client/:serverId/chat', authenticate, (req, res) => { const serverId = req.params.serverId; const message = req.body.message; const client = mcpManager.getClient(serverId); if (!client) { return res.status(404).json({ error: `Client for ${serverId} not found` }); } client.write('chat', { message: message }); res.json({ message: 'Chat message sent' }); }); // Route to disconnect a client router.delete('/client/:serverId', authenticate, (req, res) => { const serverId = req.params.serverId; mcpManager.removeClient(serverId); res.json({ message: `Client for ${serverId} disconnected` }); }); module.exports = router; ``` **5. `server.js` (Main Express Server)** ```javascript const express = require('express'); const app = express(); const minecraftRoutes = require('./routes/minecraft'); const port = 3000; app.use(express.json()); // Parse JSON request bodies app.use('/minecraft', minecraftRoutes); app.listen(port, () => { console.log(`Server listening on port ${port}`); }); ``` **Explanation and Key Points** * **`config.js`:** Stores configuration data like Minecraft server details and API keys. **Never hardcode sensitive information directly into your code.** * **`mcp_manager.js`:** * Manages the creation, retrieval, and removal of MCP client instances. * Uses a `clients` object to store the clients, keyed by `serverId`. * Handles connection, disconnection, and error events for each client. This is crucial for maintaining a stable system. * **`routes/minecraft.js`:** * Defines the Express routes for interacting with the Minecraft clients. * **`authenticate` middleware:** This is a *critical* security measure. It checks for a valid API key before allowing access to the routes. Adapt this to your authentication needs. * `/client/:serverId`: Creates a new MCP client for the specified server. * `/client/:serverId/chat`: Sends a chat message to the specified server. * `/client/:serverId`: Disconnects the client for the specified server. * **`server.js`:** * Sets up the Express server and mounts the `minecraftRoutes`. * Includes `express.json()` middleware to parse JSON request bodies. **How to Run** 1. Save all the files. 2. Open a terminal in the project directory. 3. Run `node server.js`. **Example API Usage (using `curl`)** * **Create a client:** ```bash curl -X POST -H "Content-Type: application/json" -H "X-API-Key: some-secret-key" -d '{"username": "MyBot", "password": "MyPassword"}' "http://localhost:3000/minecraft/client/server1?userId=user1" ``` * **Send a chat message:** ```bash curl -X POST -H "Content-Type: application/json" -H "X-API-Key: some-secret-key" -d '{"message": "Hello, world!"}' "http://localhost:3000/minecraft/client/server1/chat?userId=user1" ``` * **Disconnect a client:** ```bash curl -X DELETE -H "X-API-Key: some-secret-key" "http://localhost:3000/minecraft/client/server1?userId=user1" ``` **Important Considerations and Enhancements** * **Error Handling:** The example includes basic error handling, but you should add more robust error handling throughout the code. Use `try...catch` blocks, log errors, and provide informative error messages to the user. * **Authentication:** The API key authentication is a simple example. For production environments, use a more secure authentication method like JWT (JSON Web Tokens) or OAuth 2.0. * **Rate Limiting:** Implement rate limiting to prevent abuse of your API. This can be done using middleware like `express-rate-limit`. * **Logging:** Use a logging library (like `winston` or `morgan`) to log requests, errors, and other important events. This will help you debug and monitor your application. * **Scalability:** For high-traffic applications, consider using a message queue (like RabbitMQ or Kafka) to handle requests asynchronously. This will prevent your Express server from becoming overloaded. You could also use a load balancer to distribute traffic across multiple instances of your Express server. * **Minecraft Protocol Library:** The example uses `minecraft-protocol`. You can also use `prismarine-proxy` or other libraries. Choose the library that best suits your needs. `prismarine-proxy` is often used for more advanced proxying scenarios. * **Data Validation:** Validate the data that you receive from the user (e.g., username, password, message). This will help prevent errors and security vulnerabilities. Use a library like `joi` or `express-validator`. * **Minecraft Server Version Compatibility:** Minecraft protocols change with each version. Make sure your chosen library supports the Minecraft server versions you want to connect to. You might need to handle different protocol versions. * **Proxying vs. Adapting:** * **Proxying:** Simply forwards the raw Minecraft protocol packets between the client and the server. This is more efficient but requires more knowledge of the Minecraft protocol. `prismarine-proxy` is well-suited for this. * **Adapting:** Translates the requests into a different format (e.g., HTTP) and then converts them back into Minecraft protocol packets. This is easier to implement but can be less efficient. The example above is more of an adapter. * **Command Handling:** Instead of just sending chat messages, you can implement a more sophisticated command handling system. This would allow users to execute commands on the Minecraft server through your API. * **WebSockets:** Consider using WebSockets for real-time communication between the client and the Minecraft server. This would allow you to send updates to the client as they happen (e.g., player positions, chat messages). **Example using `prismarine-proxy` (Conceptual)** ```javascript const prismarineProxy = require('prismarine-proxy'); const express = require('express'); const app = express(); app.get('/proxy/:host/:port', (req, res) => { const host = req.params.host; const port = parseInt(req.params.port); prismarineProxy.createProxy({ host: host, port: port, // Options for the proxy (e.g., custom login handling) }); res.send(`Proxy created for ${host}:${port}`); }); app.listen(3000, () => { console.log('Proxy server listening on port 3000'); }); ``` This `prismarine-proxy` example is *very* basic. You'd need to add authentication, client management, and more sophisticated handling of the proxy events. `prismarine-proxy` gives you more control over the raw Minecraft protocol packets. **In summary, building a robust Minecraft proxy/adapter requires careful planning, security considerations, and a good understanding of the Minecraft protocol. Start with a simple example and gradually add features as needed.**

zk-mcp

zk 的 MCP 服务器

Oura Ring MCP Server

Enables access to Oura Ring health data including sleep patterns, activity metrics, readiness scores, heart rate, workouts, and stress measurements with AI-powered analysis and personalized recommendations.

redshift-utils-mcp

redshift-utils-mcp

mcp4gql

GraphQL MCP Server that acts as a bridge allowing MCP clients (like Cursor or Claude Desktop) to interact with target GraphQL APIs through standard tools for schema introspection and operation execution.

AdsPower LocalAPI MCP Server

A Model Context Protocol server that enables LLMs to interact with AdsPower browser LocalAPI, allowing for operations like creating, opening, updating, and managing browser profiles with custom fingerprints.

Example Next.js MCP Server

A sample implementation of a Model Context Protocol server using Next.js and the Vercel MCP Adapter, allowing developers to create AI assistants with custom tools and resources.

Git PR MCP Server

An MCP server that enables Git repository operations and GitHub PR workflows, allowing users to manage repositories, create branches, commit changes, and create pull requests through natural language.

mcp-server

一个基于 Nasdanika (AI) 能力构建的 MCP 服务器

poem_mcp

一个 MCP 服务器提供关于中国古代的知识。

Rembg MCP Server

Enables AI-powered background removal from images using multiple specialized models including u2net, birefnet, and isnet. Supports both single image processing and batch folder operations with advanced options like alpha matting and mask-only output.

Power BI XMLA MCP Server by CData

Power BI XMLA MCP Server by CData

Manim MCP Server

Enables compilation and serving of Manim animations through natural language. Supports compiling Manim Python code into videos and downloading the generated animations with secure authentication.

Image Analyzer MCP Server

Enables local image analysis using Ollama AI models with complete privacy protection. Supports image content analysis, OCR text extraction, UI design analysis, and batch processing without requiring API keys or uploading data.

MCP Server for cli-kintone

这是一个实验性的代码仓库，其验证的初衷是：是否可以将 cli-kintone 改造成 MCP (模型上下文协议) 服务器。