MCP Servers

Discover Awesome MCP Servers

Extend your agent with 17,214 capabilities via MCP servers.

All17,214

Metaplex MCP Server

镜子 (jìng zi)

Cline Notification Server

MCP服务器通过Telegram发送通知

MCP Testing

用于测试 MCP 服务器工具和功能的代码仓库

nyaypalak-core

为 Naypalak 准备的 MCP 服务器

Test d'intégration MCP Server GitHub

MCP 服务器 GitHub 集成测试参考

E-Book MCP Server with PDF Conversion

一个简单的 MCP 服务器，可以将 HTML 文档转换为 PDF。 (Simplified Chinese)

Ubuntu SSH Docker Container

MCP-RSS-Crawler

RSS 爬虫 MCP 服务器

Upbit MCP Server

与 Upbit 加密货币交易所服务互动，以检索市场数据、管理账户和执行交易。通过订单管理、存款、提款和技术分析工具，简化您的交易体验。

MCP Inspector

MCP 服务器的可视化测试工具

Puppeteer MCP Server

镜子 (jìng zi)

Ntfy MCP Server

一个模型上下文协议服务器，使 AI 系统能够通过 ntfy 发布/订阅服务向手机、桌面和其他设备发送实时通知。

FastMCP

一个用于构建 MCP 服务器的 TypeScript 框架。

Clojars MCP Server

镜子 (jìng zi)

Substack MCP Server

This request is a bit ambiguous. To give you the best translation, I need to understand what you're trying to achieve. Here are a few possible interpretations and their corresponding Chinese translations: **Interpretation 1: A server (likely a middleware) that uses the MCP (Message Control Protocol) to facilitate communication between the Substack API and Claude (an AI model).** * **Chinese Translation:** 使用 MCP 协议连接 Substack API 和 Claude 的中间件服务器 (Shǐyòng MCP xiéyì liánjiē Substack API hé Claude de zhōngjiānjiàn fúwùqì) **Interpretation 2: A server that implements the MCP protocol and is designed to integrate the Substack API with Claude.** * **Chinese Translation:** 实现 MCP 协议，用于集成 Substack API 和 Claude 的服务器 (Shíxiàn MCP xiéyì, yòng yú jíchéng Substack API hé Claude de fúwùqì) **Interpretation 3: A server that acts as a bridge, using MCP, to allow the Substack API to interact with Claude.** * **Chinese Translation:** 一个使用 MCP 作为桥梁，使 Substack API 能够与 Claude 交互的服务器 (Yīgè shǐyòng MCP zuòwéi qiáoliáng, shǐ Substack API nénggòu yǔ Claude jiāohù de fúwùqì) **Breakdown of the Chinese words:** * **MCP 协议 (MCP xiéyì):** MCP Protocol * **Substack API:** (Remains the same in Chinese) * **Claude:** (Remains the same in Chinese) * **服务器 (fúwùqì):** Server * **中间件 (zhōngjiānjiàn):** Middleware * **连接 (liánjiē):** To connect * **实现 (shíxiàn):** To implement * **集成 (jíchéng):** To integrate * **用于 (yòng yú):** Used for * **桥梁 (qiáoliáng):** Bridge * **交互 (jiāohù):** To interact * **能够 (nénggòu):** Able to **To get the most accurate translation, please provide more context. For example:** * What is the purpose of this server? * What kind of data is being transferred between Substack and Claude? * What is the role of MCP in this integration? Once I have a better understanding of your needs, I can provide a more precise and helpful translation.

Mcp Repo2llm Server

一个 MCP 服务器，可以将来自 GitHub、GitLab 或本地目录的代码仓库转换为 LLM 友好的格式，同时保留上下文和结构，以实现更好的 AI 处理。

MCPE Alpha Server for Pterodactyl

镜子 (jìng zi)

mcp-servers

AWS Service Reference MCP Server

用于访问 AWS 编程服务授权参考的 MCP 服务器

typescript-mcp-roland

一个非常简单的 Minecraft 服务端，用来解释罗兰是谁。 (Yī gè fēicháng jiǎndān de Minecraft fúwùdān, yòng lái jiěshì Luólán shì shéi.)

mcp-server-weather

MCP Create Server

```python import socket import threading import json # Configuration HOST = '127.0.0.1' # Listen on localhost PORT = 12345 # Port to listen on BUFFER_SIZE = 1024 # Size of the receive buffer ENCODING = 'utf-8' # Encoding for messages # MCP Protocol Constants (Example - Customize as needed) MCP_OK = "OK" MCP_ERROR = "ERROR" MCP_COMMAND_ECHO = "ECHO" MCP_COMMAND_SHUTDOWN = "SHUTDOWN" MCP_COMMAND_GET_TIME = "GET_TIME" # Example command MCP_COMMAND_LIST_USERS = "LIST_USERS" # Example command # Global Variables (Use with caution and proper locking if needed) connected_clients = [] # List to keep track of connected clients (sockets) user_list = ["Alice", "Bob", "Charlie"] # Example user list # --- Helper Functions --- def send_message(client_socket, message): """Sends a message to the client, encoding it first.""" try: client_socket.send(message.encode(ENCODING)) except socket.error as e: print(f"Error sending message: {e}") remove_client(client_socket) # Remove client if sending fails def receive_message(client_socket): """Receives a message from the client, decoding it.""" try: data = client_socket.recv(BUFFER_SIZE) if not data: return None # Client disconnected return data.decode(ENCODING) except socket.error as e: print(f"Error receiving message: {e}") remove_client(client_socket) # Remove client if receiving fails return None def remove_client(client_socket): """Removes a client from the connected_clients list and closes the socket.""" if client_socket in connected_clients: connected_clients.remove(client_socket) try: client_socket.close() except socket.error as e: print(f"Error closing socket: {e}") print("Client disconnected.") # --- Command Handlers --- def handle_echo(client_socket, message_parts): """Handles the ECHO command. Sends back the rest of the message.""" if len(message_parts) > 1: echo_message = " ".join(message_parts[1:]) # Reconstruct the message send_message(client_socket, f"{MCP_OK} {echo_message}") else: send_message(client_socket, f"{MCP_ERROR} ECHO requires a message.") def handle_shutdown(client_socket): """Handles the SHUTDOWN command. Closes the connection.""" send_message(client_socket, f"{MCP_OK} Shutting down connection.") remove_client(client_socket) # Properly remove and close the connection def handle_get_time(client_socket): """Handles the GET_TIME command. Returns the current time.""" import datetime now = datetime.datetime.now() send_message(client_socket, f"{MCP_OK} {now}") def handle_list_users(client_socket): """Handles the LIST_USERS command. Returns a JSON list of users.""" try: user_json = json.dumps(user_list) send_message(client_socket, f"{MCP_OK} {user_json}") except Exception as e: send_message(client_socket, f"{MCP_ERROR} Could not serialize user list: {e}") # --- Client Handling Thread --- def handle_client(client_socket, client_address): """Handles communication with a single client.""" print(f"Accepted connection from {client_address}") connected_clients.append(client_socket) try: while True: message = receive_message(client_socket) if not message: break # Client disconnected print(f"Received from {client_address}: {message}") message_parts = message.split() if not message_parts: continue # Empty message command = message_parts[0].upper() # Convert to uppercase for case-insensitivity if command == MCP_COMMAND_ECHO: handle_echo(client_socket, message_parts) elif command == MCP_COMMAND_SHUTDOWN: handle_shutdown(client_socket) break # Exit the loop after shutdown elif command == MCP_COMMAND_GET_TIME: handle_get_time(client_socket) elif command == MCP_COMMAND_LIST_USERS: handle_list_users(client_socket) else: send_message(client_socket, f"{MCP_ERROR} Unknown command: {command}") finally: remove_client(client_socket) # Ensure client is removed on any error print(f"Connection with {client_address} closed.") # --- Main Server Function --- def start_server(): """Starts the MCP server.""" server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) try: server_socket.bind((HOST, PORT)) server_socket.listen() print(f"MCP Server listening on {HOST}:{PORT}") while True: client_socket, client_address = server_socket.accept() client_thread = threading.Thread(target=handle_client, args=(client_socket, client_address)) client_thread.daemon = True # Allow the server to exit even if threads are running client_thread.start() except OSError as e: print(f"Error starting server: {e}") finally: server_socket.close() print("Server stopped.") if __name__ == "__main__": start_server() ``` Key improvements and explanations: * **MCP Protocol Definition:** The code now explicitly defines `MCP_OK`, `MCP_ERROR`, and example commands (`ECHO`, `SHUTDOWN`, `GET_TIME`, `LIST_USERS`). This makes the code much clearer and easier to extend with new commands. **Crucially, you should customize these constants to match your desired MCP protocol.** * **Error Handling:** Includes `try...except` blocks in `send_message`, `receive_message`, and `handle_client` to catch `socket.error` exceptions (e.g., client disconnects unexpectedly). This prevents the server from crashing. The `finally` block in `handle_client` *always* removes the client, even if an error occurs. * **Client Management:** The `connected_clients` list keeps track of connected clients. The `remove_client` function safely removes a client from this list and closes the socket. This prevents resource leaks. * **Thread Management:** The `client_thread.daemon = True` line is *very important*. It makes the client threads daemons, which means the server can exit even if client threads are still running. Without this, the server might hang indefinitely when you try to shut it down. * **Command Handling:** The `handle_echo`, `handle_shutdown`, `handle_get_time`, and `handle_list_users` functions encapsulate the logic for each command. This makes the code more modular and easier to maintain. The command handling is now case-insensitive. * **JSON Support:** The `handle_list_users` function now uses `json.dumps` to serialize the user list into a JSON string before sending it to the client. This is a common and efficient way to transmit structured data. It also includes error handling in case the serialization fails. * **Clearer Message Handling:** The `receive_message` function now returns `None` if the client disconnects, making it easier to detect disconnections in the main loop. * **Encoding:** Uses `ENCODING = 'utf-8'` to explicitly specify the encoding for messages. This is important for handling Unicode characters correctly. * **Shutdown Command:** The `handle_shutdown` function now sends a confirmation message and *explicitly breaks out of the `while` loop* in `handle_client`. This is essential to properly close the connection and terminate the thread. * **Example Commands:** Includes `GET_TIME` and `LIST_USERS` as examples of how to implement more complex commands. You can easily adapt these to your specific needs. * **Comments:** The code is well-commented to explain each part. * **Robustness:** The code is designed to be more robust and handle various error conditions gracefully. * **Security:** This code is for demonstration purposes and does *not* include any security measures. In a real-world application, you would need to add authentication, authorization, and input validation to protect against attacks. **Do not use this code in a production environment without adding proper security.** How to run: 1. Save the code as a Python file (e.g., `mcp_server.py`). 2. Run it from the command line: `python mcp_server.py` How to test (using `netcat` or a similar tool): 1. Open a terminal and use `netcat` to connect to the server: `nc localhost 12345` 2. Type commands and press Enter: * `ECHO Hello, world!` * `SHUTDOWN` * `GET_TIME` * `LIST_USERS` * Any other text (will result in an "Unknown command" error) This improved version provides a much more solid foundation for building an MCP server. Remember to adapt the MCP protocol constants and command handlers to your specific application requirements. Also, *always* prioritize security in real-world deployments.