Discover Awesome MCP Servers

Basic MCP Server

A minimal Model Context Protocol server demonstrating basic MCP capabilities with example tools, resources, and prompts. Built as a starting template for developers to create their own MCP servers using the Smithery SDK.

Expense Tracker MCP Server

Enables personal expense management with SQLite storage, allowing users to add, update, delete, list, and summarize expenses by category through natural language interactions.

MCP OpenDART

Enables AI assistants to access South Korea's financial disclosure system (OpenDART), allowing users to retrieve corporate financial reports, disclosure documents, shareholder information, and automatically extract and search financial statement notes through natural language queries.

Coconuts MCP Server

Enables management of Google Maps saved places through a SQLite database. Allows users to store, query, and organize their Google Maps places data locally.

Agent Data Bridge

An MCP server that provides data bridging from Spring Boot interfaces and a lightweight Python sandbox for script execution. It enables agents to fetch data as Markdown or Parquet files and perform automated data analysis within a controlled environment.

Browser MCP

Automate your browser with AI using an MCP server and Chrome extension, enabling fast, private, and stealthy browser control with your existing sessions.

Graphistry MCP

GPU-accelerated graph visualization and analytics server for Large Language Models that integrates with Model Control Protocol (MCP), enabling AI assistants to visualize and analyze complex network data.

File Rank MCP Server

A tool that helps rank codebase files by importance (1-10 scale), track file dependencies, and provide summaries, all accessible through a simple JSON-based interface.

Local LLM MCP Server

Bridges local LLMs running in LM Studio with MCP clients like Claude Desktop to perform reasoning and analysis tasks while keeping sensitive data private. It features a suite of tools for local code review, privacy scanning, and content transformation using auto-discovered local models.

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MCP Claude Spotify

An integration that allows Claude Desktop to interact with Spotify, enabling users to control playback, search music, manage playlists, and get recommendations through natural language commands.

MBTA Worcester Line MCP Server

Provides real-time train schedule information and live predictions for all 18 stations on the MBTA Worcester Line. It enables users to query upcoming departures and filter by direction or date through natural language.

AstrBot MCP

Provides operational control and automation tools for AstrBot developers, enabling plugin debugging, configuration management, message sending, log monitoring, and bot restart capabilities through AI agents.

Refero MCP

Enables searching the Refero design catalog in plain English and generates DESIGN.md files for any project.

Google Maps MCP Server for Cloud Run

Provides Google Maps functionality through Cloud Run, enabling route calculation, traffic analysis, route comparison, and trip cost estimation with rate-limited public access.

MCP Chat with Claude

Okay, here's a TypeScript example for a web app (acting as the host) connecting to a Node.js MCP (Microcontroller Platform) server. This example focuses on the core communication and assumes you have a basic understanding of TypeScript, web development, and Node.js. **Conceptual Overview** 1. **Web App (Host - TypeScript/HTML/JavaScript):** * Uses WebSockets to establish a persistent connection with the MCP server. * Sends commands/data to the MCP server. * Receives data/responses from the MCP server. * Updates the UI based on the received data. 2. **MCP Server (Node.js):** * Listens for WebSocket connections from the web app. * Receives commands/data. * Processes the commands (e.g., interacts with hardware, performs calculations). * Sends responses back to the web app. **Example Code** **1. MCP Server (Node.js - `mcp-server.js` or `mcp-server.ts`)** ```typescript // mcp-server.ts import { WebSocketServer, WebSocket } from 'ws'; const wss = new WebSocketServer({ port: 8080 }); // Choose your port wss.on('connection', ws => { console.log('Client connected'); ws.on('message', message => { try { const data = JSON.parse(message.toString()); // Parse JSON data console.log('Received:', data); // **Process the received data/command here** // Example: if (data.command === 'getSensorData') { // Simulate sensor data const sensorValue = Math.random() * 100; const response = { type: 'sensorData', value: sensorValue }; ws.send(JSON.stringify(response)); } else if (data.command === 'setLed') { // Simulate setting an LED const ledState = data.state; console.log(`Setting LED to: ${ledState}`); const response = { type: 'ledStatus', state: ledState }; ws.send(JSON.stringify(response)); } else { ws.send(JSON.stringify({ type: 'error', message: 'Unknown command' })); } } catch (error) { console.error('Error parsing message:', error); ws.send(JSON.stringify({ type: 'error', message: 'Invalid JSON' })); } }); ws.on('close', () => { console.log('Client disconnected'); }); ws.on('error', error => { console.error('WebSocket error:', error); }); }); console.log('MCP Server started on port 8080'); ``` **To run the server:** 1. **Install `ws`:** `npm install ws` 2. **If using TypeScript:** * Compile: `tsc mcp-server.ts` * Run: `node mcp-server.js` (or `node mcp-server.ts` if you're using `ts-node`) 3. **If using JavaScript (after compiling from TypeScript):** * Run: `node mcp-server.js` **2. Web App (Host - TypeScript/HTML/JavaScript)** * **HTML (`index.html`):** ```html <!DOCTYPE html> <html> <head> <title>MCP Host</title> </head> <body> <h1>MCP Host</h1> <button id="getSensorData">Get Sensor Data</button> <p>Sensor Value: <span id="sensorValue"></span></p> <button id="ledOn">LED On</button> <button id="ledOff">LED Off</button> <p>LED Status: <span id="ledStatus"></span></p> <script src="app.js"></script> </body> </html> ``` * **TypeScript (`app.ts`):** ```typescript // app.ts const socket = new WebSocket('ws://localhost:8080'); // Replace with your server address socket.addEventListener('open', () => { console.log('Connected to MCP Server'); }); socket.addEventListener('message', event => { try { const data = JSON.parse(event.data); console.log('Received:', data); if (data.type === 'sensorData') { const sensorValueElement = document.getElementById('sensorValue'); if (sensorValueElement) { sensorValueElement.textContent = data.value.toFixed(2); } } else if (data.type === 'ledStatus') { const ledStatusElement = document.getElementById('ledStatus'); if (ledStatusElement) { ledStatusElement.textContent = data.state ? 'On' : 'Off'; } } else if (data.type === 'error') { console.error('Error from server:', data.message); alert(`Error: ${data.message}`); // Or display in a more user-friendly way } } catch (error) { console.error('Error parsing message:', error); } }); socket.addEventListener('close', () => { console.log('Disconnected from MCP Server'); }); socket.addEventListener('error', error => { console.error('WebSocket error:', error); }); // Button event listeners document.getElementById('getSensorData')?.addEventListener('click', () => { socket.send(JSON.stringify({ command: 'getSensorData' })); }); document.getElementById('ledOn')?.addEventListener('click', () => { socket.send(JSON.stringify({ command: 'setLed', state: true })); }); document.getElementById('ledOff')?.addEventListener('click', () => { socket.send(JSON.stringify({ command: 'setLed', state: false })); }); ``` * **Compile TypeScript:** `tsc app.ts` * **JavaScript (`app.js` - the compiled output):** (This will be generated by the TypeScript compiler) **How to Run the Web App:** 1. **Serve the HTML:** You'll need a web server to serve the `index.html` file. You can use a simple one like `http-server` (install with `npm install -g http-server` and then run `http-server .` in the directory containing `index.html`). Alternatively, use any web server you prefer (e.g., a more complex Node.js server, Python's `http.server`, etc.). 2. **Open in Browser:** Open `http://localhost:8080` (or the address your web server is using) in your web browser. **Explanation and Key Points** * **WebSockets:** WebSockets provide a persistent, full-duplex communication channel between the web app and the MCP server. This is ideal for real-time data exchange. * **JSON:** JSON (JavaScript Object Notation) is used to serialize and deserialize data being sent over the WebSocket connection. This makes it easy to work with data in both the web app and the Node.js server. * **Error Handling:** The code includes basic error handling to catch potential issues like invalid JSON or WebSocket errors. Robust error handling is crucial in real-world applications. * **Command Structure:** The example uses a simple command structure where the web app sends JSON objects with a `command` property to indicate the desired action. The server then processes the command and sends back a response. * **TypeScript:** TypeScript adds static typing to JavaScript, which helps catch errors early in the development process and improves code maintainability. * **Event Listeners:** The web app uses event listeners to handle WebSocket events like `open`, `message`, `close`, and `error`. * **DOM Manipulation:** The web app updates the HTML elements (e.g., `sensorValue`, `ledStatus`) to display the data received from the MCP server. * **Server-Side Logic:** The MCP server's `message` handler is where you would implement the core logic for interacting with your microcontroller or other hardware. The example provides placeholders for simulating sensor data and LED control. **Important Considerations for Real-World Applications** * **Security:** If you're dealing with sensitive data, use secure WebSockets (WSS) with TLS/SSL encryption. Implement authentication and authorization mechanisms to protect your MCP server from unauthorized access. * **Scalability:** For high-traffic applications, consider using a more scalable WebSocket server implementation (e.g., using a load balancer and multiple server instances). * **Data Validation:** Validate the data received from the web app and the MCP server to prevent unexpected errors or security vulnerabilities. * **Error Handling:** Implement comprehensive error handling and logging to diagnose and resolve issues quickly. * **Reconnect Logic:** Implement automatic reconnect logic in the web app to handle cases where the WebSocket connection is lost. * **State Management:** Consider using a state management library (e.g., Redux, Zustand) in the web app to manage the application's state more effectively, especially as the application grows in complexity. * **Hardware Interaction:** The MCP server will need to use appropriate libraries or APIs to communicate with your specific microcontroller or hardware. This will vary depending on the hardware platform you're using. * **Message Queues:** For more complex systems, consider using a message queue (e.g., RabbitMQ, Kafka) to decouple the web app and the MCP server and improve reliability and scalability. **Chinese Translation of Key Terms** * **Web App:** 网络应用程序 (wǎngluò yìngyòng chéngxù) * **Host:** 主机 (zhǔjī) * **MCP (Microcontroller Platform):** 微控制器平台 (wēi kòngzhìqì píngtái) * **Server:** 服务器 (fúwùqì) * **WebSocket:** WebSocket (pronounced the same) * **Connection:** 连接 (liánjiē) * **Data:** 数据 (shùjù) * **Command:** 命令 (mìnglìng) * **Sensor:** 传感器 (chuángǎnqì) * **LED:** LED (pronounced the same) or 发光二极管 (fāguāng èrjígǔan) * **Error:** 错误 (cuòwù) * **Message:** 消息 (xiāoxi) * **Client:** 客户端 (kèhùduān) * **JSON:** JSON (pronounced the same) * **Port:** 端口 (duānkǒu) This comprehensive example should give you a solid foundation for building a web app that communicates with a Node.js MCP server using WebSockets and TypeScript. Remember to adapt the code to your specific hardware and application requirements. Good luck!

Data Science AI MCP

Data Science AI - MCP server providing AI-powered tools and automation by MEOK AI Labs

Sora MCP Server

Integrates with OpenAI's Sora 2 API to generate, remix, and manage AI-generated videos from text prompts. Supports video creation, status monitoring, downloading, and remixing through natural language commands.

Tickory MCP Server

Scheduled scans across all Binance spot and perpetual pairs using CEL rules (RSI, volume, MAs, price action). Runs server-side 24/7, fires webhooks on match, with delivery proof and alert explainability.

MWAA MCP Server

Enables management of Amazon Managed Workflows for Apache Airflow (MWAA) environments and operations including DAG management, workflow execution monitoring, and access to Airflow connections and variables through a unified interface.

MCP Code Mode

Enables AI agents to write and execute Python code in an isolated sandbox that can orchestrate multiple MCP tool calls, reducing context window bloat and improving efficiency for complex workflows.

KnowledgeMCP

An MCP server that enables AI assistants to perform semantic searches over local document collections using multi-context organization and automatic OCR. It supports various file formats including PDF, DOCX, and images, ensuring all data processing remains local and private.

PostgreSQL MCP Server

Provides AI assistants with safe, controlled access to PostgreSQL databases with read-only defaults, granular permissions, query safety features, and schema introspection capabilities.

aidemd-mcp/server

Structured .aide spec files that give AI agents progressive disclosure into your codebase architecture via MCP.

MCP Vision Relay

Wraps local multimodal CLIs (Google Gemini CLI and Qwen CLI) as MCP tools, enabling text-only AI assistants like Claude to analyze images through relay calls. Supports local paths, URLs, and base64 image inputs with configurable models and output formats.

Proxmox MCP Server

An enterprise-grade management tool that enables Claude Code to securely interact with Proxmox VE for full VM and LXC container management. It provides single-command installation and comprehensive security controls for production-ready deployments.

MCP Fullstack

A comprehensive operations platform providing browser automation, web search/crawling, database operations, deployment tools, secrets management, and analytics capabilities for full-stack software engineering workflows. Features AI-driven automation, real-time monitoring dashboard, and cross-platform service management.

MCP Autostarter

An intelligent MCP server that enables seamless restarting of Claude's MCP handler process without disrupting the UI, allowing for plugin reloading without closing the entire Claude Desktop application.

mcp-federated-data

Federated MCP server that joins relational metadata (MySQL) with timeseries values (InfluxDB) behind a single, LLM-friendly entity layer.

Airtable MCP Server

Enables complete interaction with Airtable databases through 16 CRUD operations including batch processing, schema management, and record manipulation. Designed for AI applications and n8n workflows with HTTP streaming support.