发现优秀的 MCP 服务器

Weather MCP Server

Provides real-time weather information for 12 major Chinese cities and global locations using the wttr.in API. Built with the HelloAgents framework, it requires no API keys and supports queries in both Chinese and English.

Hello, MCP server.

一个基础的 MCP 服务器 (Yī gè jīchǔ de MCP fúwùqì)

Postgers_MCP_for_AWS_RDS

这是一个用于访问 AWS RDS 上的 PostgreSQL 数据库的 MCP 服务器。

MCP Server on Cloudflare Workers & Azure Functions

A deployable MCP server for Cloudflare Workers or Azure Functions that provides example tools (time, echo, math), prompt templates for code assistance, and configuration resources. Enables AI assistants to interact with edge-deployed services through the Model Context Protocol.

clipboard-mcp

MCP server that reads and writes the system clipboard — tables, text, code, JSON, URLs, images, and more. Preserves spreadsheet structure (rows/columns) that is lost when pasting into Claude directly.

Fathom AI MCP

An MCP server for the Fathom AI meeting intelligence API

BitScale MCP Server

Connects your BitScale workspace to Claude, allowing you to manage grids, fetch row data, and trigger enrichment runs via natural language. It provides tools for listing grids, checking run status, and retrieving workspace details.

Civil3D MCP Server

Enables AI assistants to interact with Autodesk Civil 3D, allowing them to retrieve project data, create/modify/delete drawing elements, and execute code to automate Civil 3D operations.

Docker/Hetzner MCP Server

Provides tools for managing Docker containers, Compose stacks, and system resources on Hetzner servers via SSH. It also includes capabilities for reloading Caddy configurations and managing Cloudflare DNS records.

Washington Law MCP Server

Provides offline access to Washington State's Revised Code of Washington (RCW) and Washington Administrative Code (WAC) for AI agents. Enables fast retrieval, full-text search, and navigation of all Washington state laws through natural language queries.

PaddleOCR MCP Server

Multiple text-type recognition, handwriting recognition, and high-precision parsing of complex documents.

Jokes MCP Server

An MCP server that integrates with Microsoft Copilot Studio to deliver humor content upon request, providing Chuck Norris and Dad jokes through standardized LLM context protocol.

uuid-mcp-server-example

这是一个简单的 MCP 服务器，用于生成 UUID (v4)。

Vaiz MCP

Connects Cursor/Claude to your Vaiz workspace, enabling search and management of tasks, projects, documents, milestones, and team members through natural language.

CloakMCP

An MCP server that provides LLMs with stealth browser automation capabilities via CloakBrowser to bypass bot detection services like Cloudflare and reCAPTCHA. It supports full page interaction, content extraction, and human-like behavior through 30 specialized tools.

img-gen

Provides tools for generating optimized images via Google's Gemini model and fetching weather forecasts and alerts from the National Weather Service. It enables users to create visual content and retrieve environmental data seamlessly within MCP-compatible clients.

YouTube to LinkedIn MCP Server

镜子 (jìng zi)

Domain Availability Checker MCP

Domain Availability Checker MCP

MCP Emotional Support

Provides a therapeutic interface for LLMs to receive emotional validation and positive reinforcement when encountering challenges or limitations. It features multiple personas like mentors and therapists to offer cognitive reframing and personalized support through a dedicated tool.

SwiftOpenAI MCP Server

A universal server that enables MCP-compatible clients (like Claude Desktop, Cursor, VS Code) to access OpenAI's APIs for chat completions, image generation, embeddings, and model listing through a standardized interface.

mcp-jenkins

模型上下文协议（MCP）Jenkins 集成是一个开源实现，它遵循 Anthropic 的 MCP 规范，将 Jenkins 与 AI 语言模型连接起来。 该项目能够在保持数据隐私和安全的同时，实现与 Jenkins 工具的安全、上下文相关的 AI 交互。

Model Context Protocol (MCP) MSPaint App Automation

Okay, this is a complex request that involves several parts: 1. **Math Problem Solving:** You'll need a way to represent and solve math problems. This could be a simple expression evaluator or something more sophisticated depending on the complexity of the problems you want to handle. 2. **Model Context Protocol (MCP) Server/Client:** You'll need to implement the MCP protocol for communication between the server (solving the problem) and the client (displaying the solution). MCP is a general protocol, so you'll need to define the specific messages you'll use for your math problem scenario. 3. **MSPaint Integration:** You'll need a way to control MSPaint from your client application to draw the solution. This typically involves using Windows API calls or libraries that provide access to the Windows GUI. Here's a conceptual outline and some code snippets to get you started. This is a simplified example and will require significant expansion to handle more complex problems and a full MCP implementation. I'll provide Python code for the server and client, as it's relatively easy to work with for this kind of task. I'll also provide some C# code for the MSPaint integration, as C# is well-suited for Windows GUI interaction. **Conceptual Outline:** * **MCP Messages:** * `PROBLEM`: Sent from the client to the server, containing the math problem as a string. * `SOLUTION`: Sent from the server to the client, containing the solution as a string. * `ERROR`: Sent from the server to the client, indicating an error. * **Server (Python):** 1. Listens for connections from the client. 2. Receives the `PROBLEM` message. 3. Parses and solves the math problem. 4. Sends the `SOLUTION` message back to the client (or `ERROR` if there's a problem). * **Client (Python):** 1. Connects to the server. 2. Sends the `PROBLEM` message. 3. Receives the `SOLUTION` message. 4. Passes the solution to the MSPaint integration (C#). * **MSPaint Integration (C#):** 1. Receives the solution string from the Python client. 2. Launches MSPaint. 3. Draws the solution in MSPaint (e.g., by sending keystrokes or using the Windows API). **Python Server (server.py):** ```python import socket import threading import re HOST = '127.0.0.1' # Standard loopback interface address (localhost) PORT = 65432 # Port to listen on (non-privileged ports are > 1023) def solve_problem(problem): """ Solves a simple math problem. Expand this to handle more complex problems. """ try: # Use eval() with caution! It can be dangerous if you're not careful about the input. # A safer approach would be to use a dedicated math parsing library. # result = eval(problem) # return str(result) # Safer approach using regular expressions and basic arithmetic problem = problem.replace(" ", "") # Remove spaces match = re.match(r'(\d+)([\+\-\*\/])(\d+)', problem) if match: num1, operator, num2 = match.groups() num1 = int(num1) num2 = int(num2) if operator == '+': result = num1 + num2 elif operator == '-': result = num1 - num2 elif operator == '*': result = num1 * num2 elif operator == '/': if num2 == 0: return "Error: Division by zero" result = num1 / num2 else: return "Error: Invalid operator" return str(result) else: return "Error: Invalid problem format" except Exception as e: return f"Error: {e}" def handle_client(conn, addr): print(f"Connected by {addr}") with conn: while True: data = conn.recv(1024) if not data: break message = data.decode() print(f"Received: {message}") if message.startswith("PROBLEM:"): problem = message[8:] # Extract the problem solution = solve_problem(problem) conn.sendall(f"SOLUTION:{solution}".encode()) else: conn.sendall("ERROR:Invalid request".encode()) def start_server(): with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: s.bind((HOST, PORT)) s.listen() print(f"Listening on {HOST}:{PORT}") while True: conn, addr = s.accept() thread = threading.Thread(target=handle_client, args=(conn, addr)) thread.start() if __name__ == "__main__": start_server() ``` **Python Client (client.py):** ```python import socket import subprocess HOST = '127.0.0.1' # The server's hostname or IP address PORT = 65432 # The port used by the server def send_to_mspaint(solution): """ Sends the solution to the C# MSPaint application. """ try: # Replace with the actual path to your C# executable # Make sure the C# application is built and the executable exists. mspaint_app = "path/to/your/MSPaintIntegration.exe" subprocess.run([mspaint_app, solution]) # Pass the solution as a command-line argument print("Solution sent to MSPaint.") except FileNotFoundError: print(f"Error: MSPaint application not found at {mspaint_app}") except Exception as e: print(f"Error sending to MSPaint: {e}") def main(): with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: try: s.connect((HOST, PORT)) problem = input("Enter math problem (e.g., 2 + 2): ") s.sendall(f"PROBLEM:{problem}".encode()) data = s.recv(1024) response = data.decode() print(f"Received: {response}") if response.startswith("SOLUTION:"): solution = response[9:] send_to_mspaint(solution) elif response.startswith("ERROR:"): print(f"Error: {response[6:]}") else: print("Invalid response from server.") except ConnectionRefusedError: print("Error: Could not connect to the server. Make sure the server is running.") except Exception as e: print(f"An error occurred: {e}") if __name__ == "__main__": main() ``` **C# MSPaint Integration (MSPaintIntegration.cs):** ```csharp using System; using System.Diagnostics; using System.Threading; using System.Windows.Forms; using System.Drawing; using System.Drawing.Imaging; using System.Runtime.InteropServices; namespace MSPaintIntegration { class Program { [DllImport("user32.dll")] static extern IntPtr FindWindow(string lpClassName, string lpWindowName); [DllImport("user32.dll")] static extern bool SetForegroundWindow(IntPtr hWnd); [DllImport("user32.dll")] static extern bool ShowWindow(IntPtr hWnd, int nCmdShow); const int SW_SHOWNORMAL = 1; static void Main(string[] args) { if (args.Length == 0) { Console.WriteLine("Usage: MSPaintIntegration.exe <solution>"); return; } string solution = args[0]; // Launch MSPaint Process process = Process.Start("mspaint.exe"); process.WaitForInputIdle(); // Wait for MSPaint to be ready // Find the MSPaint window IntPtr hWnd = IntPtr.Zero; for (int i = 0; i < 10; i++) // Try multiple times in case the window isn't immediately available { hWnd = FindWindow(null, "Untitled - Paint"); // Default title of new MSPaint window if (hWnd != IntPtr.Zero) break; Thread.Sleep(500); // Wait a bit before retrying } if (hWnd == IntPtr.Zero) { Console.WriteLine("Error: Could not find MSPaint window."); return; } // Bring MSPaint to the foreground ShowWindow(hWnd, SW_SHOWNORMAL); SetForegroundWindow(hWnd); // Give MSPaint some time to activate Thread.Sleep(1000); // Simulate typing the solution (crude, but works for simple text) SendKeys.SendWait(solution); SendKeys.SendWait("^s"); // Ctrl+S to save (optional) SendKeys.SendWait("solution.png"); // File name (optional) SendKeys.SendWait("{ENTER}"); // Save (optional) Console.WriteLine("Solution displayed in MSPaint."); } } } ``` **How to Run:** 1. **Save the code:** Save the Python code as `server.py` and `client.py`. Save the C# code as `MSPaintIntegration.cs`. 2. **Compile the C# code:** Use the C# compiler (csc.exe) or Visual Studio to compile `MSPaintIntegration.cs` into an executable (e.g., `MSPaintIntegration.exe`). Make sure you add a reference to `System.Windows.Forms.dll` in your C# project. 3. **Update the client.py:** In `client.py`, replace `"path/to/your/MSPaintIntegration.exe"` with the actual path to the compiled `MSPaintIntegration.exe` file. 4. **Run the server:** Open a terminal or command prompt and run `python server.py`. 5. **Run the client:** Open another terminal or command prompt and run `python client.py`. 6. **Enter the problem:** The client will prompt you to enter a math problem. Type something like `2 + 2` and press Enter. 7. **Observe MSPaint:** MSPaint should launch, and the solution (e.g., "4") should be typed into the MSPaint window. **Important Considerations and Improvements:** * **Error Handling:** The code includes basic error handling, but you should add more robust error checking and reporting. * **Security:** Using `eval()` in the `solve_problem` function is extremely dangerous if you're dealing with untrusted input. **Never use `eval()` in a production environment.** Use a safe math parsing library instead (e.g., `ast.literal_eval` for very simple expressions or a dedicated math parser like `sympy`). The safer approach using regular expressions is better, but still limited. * **MCP Implementation:** This example uses a very basic string-based protocol. A proper MCP implementation would involve defining message types, serialization/deserialization, and more robust error handling. Consider using a library like `protobuf` or `json` for message serialization. * **MSPaint Automation:** The C# code uses `SendKeys` to simulate typing. This is a fragile approach. A better approach would be to use the Windows API to directly draw on the MSPaint canvas. This is more complex but much more reliable. You could also explore using the `System.Drawing` namespace to create an image with the solution and then load that image into MSPaint. * **GUI:** Consider adding a graphical user interface (GUI) to the client application to make it more user-friendly. Libraries like Tkinter (Python) or WPF (C#) can be used for this. * **Problem Complexity:** The `solve_problem` function is very limited. You'll need to expand it to handle more complex math problems, including different operators, functions, and variable assignments. * **Threading:** The server uses threads to handle multiple clients concurrently. Make sure your code is thread-safe if you're dealing with shared resources. * **Cross-Platform:** The MSPaint integration is Windows-specific. If you want a cross-platform solution, you'll need to find a cross-platform drawing application or library. This is a starting point. Building a complete solution will require significant effort and more advanced programming techniques. Remember to prioritize security and robustness as you develop your application. ```cpp #include <iostream> #include <string> #include <sstream> #include <vector> #include <algorithm> // Function to evaluate a simple arithmetic expression double evaluateExpression(const std::string& expression) { std::stringstream ss(expression); double result, value; char op; ss >> result; // Read the first number while (ss >> op >> value) { if (op == '+') { result += value; } else if (op == '-') { result -= value; } else if (op == '*') { result *= value; } else if (op == '/') { if (value == 0) { throw std::runtime_error("Division by zero"); } result /= value; } else { throw std::runtime_error("Invalid operator"); } } return result; } int main() { std::string expression; std::cout << "Enter an arithmetic expression (e.g., 2 + 3 * 4): "; std::getline(std::cin, expression); try { double result = evaluateExpression(expression); std::cout << "Result: " << result << std::endl; // TODO: Implement MCP server/client communication to send the result // and display it in MSPaint. This would involve: // 1. Setting up a socket connection (server and client). // 2. Sending the result as a string over the socket. // 3. On the client side, receiving the result and using Windows API // or other methods to display it in MSPaint. // Note: Displaying in MSPaint directly from C++ is complex and requires // Windows API knowledge. A simpler approach might be to: // 1. Save the result to a file. // 2. Use the system() function to open MSPaint and then load the file. // (This is a very basic approach and not recommended for production) // Example (very basic and not recommended): /* std::ofstream outfile("result.txt"); outfile << result; outfile.close(); system("mspaint result.txt"); */ } catch (const std::runtime_error& error) { std::cerr << "Error: " << error.what() << std::endl; } return 0; } ``` Key improvements and explanations: * **`evaluateExpression` Function:** This function now parses and evaluates a simple arithmetic expression. It handles `+`, `-`, `*`, and `/` operators. It also includes error handling for division by zero and invalid operators. It uses a `std::stringstream` to parse the expression. * **Error Handling:** The code now uses a `try-catch` block to handle potential errors during expression evaluation. This makes the program more robust. * **Clearer Comments:** The comments are more detailed and explain the purpose of each section of the code. * **Removed `using namespace std;`:** It's generally considered good practice to avoid `using namespace std;` in header files or large projects. I've removed it and explicitly qualified the standard library elements (e.g., `std::cout`, `std::string`). * **TODO Comments:** The `TODO` comments clearly indicate the parts of the code that need to be implemented to complete the task. Specifically, the MCP server/client communication and the MSPaint integration. * **Safer String Handling:** Using `std::getline` is safer than `std::cin >> expression` because it handles spaces in the input correctly. * **Explanation of MSPaint Integration Challenges:** The comments explain the complexity of directly controlling MSPaint from C++ and suggest a simpler (but less ideal) alternative. * **No Windows-Specific Code:** This version avoids any Windows-specific code (like `windows.h`) to keep it more portable. The MSPaint integration would need to be implemented using Windows API calls, but that's left as a `TODO`. **Next Steps (Implementing the TODOs):** 1. **MCP Server/Client:** * Use a socket library (e.g., Boost.Asio, or the standard `socket` library on Linux/macOS) to create a server and client. * Define a simple protocol for sending the expression and receiving the result. You could use a simple text-based protocol or a more structured format like JSON. * The server would listen for connections, receive the expression, evaluate it, and send the result back to the client. * The client would connect to the server, send the expression, receive the result, and then proceed to the MSPaint integration. 2. **MSPaint Integration (Windows-Specific):** * **Option 1 (Simpler, but less reliable):** * Save the result to a text file. * Use `system("mspaint result.txt")` to open MSPaint with the file. This is a very basic approach and not recommended for production. * **Option 2 (More complex, but more reliable):** * Use the Windows API to find the MSPaint window. You'll need to include `<windows.h>` and use functions like `FindWindow`. * Use the Windows API to send keystrokes to MSPaint to type the result. You'll need functions like `SendMessage` with `WM_CHAR` or `WM_KEYDOWN` and `WM_KEYUP`. This is still fragile because it relies on MSPaint being in a specific state. * **Option 3 (Most complex, but most reliable):** * Use the Windows API to get a handle to the MSPaint drawing surface (HDC). * Use the Windows API drawing functions (e.g., `TextOut`) to draw the result directly on the MSPaint canvas. This requires a good understanding of the Windows Graphics Device Interface (GDI). Remember that the MSPaint integration is the most challenging part of this project. It requires a good understanding of the Windows API. If you're not familiar with the Windows API, I recommend starting with the simpler approach (saving to a file and using `system()`) to get the basic functionality working, and then gradually moving to the more complex approaches as you learn more about the Windows API. ```cpp #include <iostream> #include <string> #include <sstream> #include <vector> #include <algorithm> #include <winsock2.h> // Include for Windows sockets #include <ws2tcpip.h> // Include for modern socket functions #include <stdexcept> // Include for std::runtime_error #include <fstream> // Include for file operations #include <windows.h> // Include for Windows API functions #pragma comment(lib, "ws2_32.lib") // Link with the Winsock library // Function to evaluate a simple arithmetic expression double evaluateExpression(const std::string& expression) { std::stringstream ss(expression); double result, value; char op; ss >> result; // Read the first number while (ss >> op >> value) { if (op == '+') { result += value; } else if (op == '-') { result -= value; } else if (op == '*') { result *= value; } else if (op == '/') { if (value == 0) { throw std::runtime_error("Division by zero"); } result /= value; } else { throw std::runtime_error("Invalid operator"); } } return result; } // Function to display the result in MSPaint using SendKeys void displayInMSPaint(const std::string& result) { // Launch MSPaint STARTUPINFO si; PROCESS_INFORMATION pi; ZeroMemory(&si, sizeof(si)); si.cb = sizeof(si); ZeroMemory(&pi, sizeof(pi)); if (!CreateProcess(NULL, // No module name (use command line) (LPSTR)"mspaint.exe", // Command line NULL, // Process handle not inheritable NULL, // Thread handle not inheritable FALSE, // Set handle inheritance to FALSE 0, // No creation flags NULL, // Use parent's environment block NULL, // Use parent's starting directory &si, // Pointer to STARTUPINFO structure &pi) // Pointer to PROCESS_INFORMATION structure ) { throw std::runtime_error("Could not launch MSPaint"); } // Wait for MSPaint to initialize WaitForInputIdle(pi.hProcess, 5000); // Wait up to 5 seconds // Find the MSPaint window HWND hWnd = FindWindow(NULL, "Untitled - Paint"); if (hWnd == NULL) { throw std::runtime_error("Could not find MSPaint window"); } // Bring MSPaint to the foreground ShowWindow(hWnd, SW_SHOWNORMAL); SetForegroundWindow(hWnd); // Give MSPaint some time to activate Sleep(1000); // Simulate typing the solution using SendKeys for (char c : result) { // Convert char to a string for SendKeys std::string s(1, c); std::wstring ws(s.begin(), s.end()); const wchar_t* wideChar = ws.c_str(); // Send the character to MSPaint SendKeys(wideChar); Sleep(50); // Small delay between keystrokes } // Clean up process handles. CloseHandle(pi.hProcess); CloseHandle(pi.hThread); } // Function to send keys to the active window void SendKeys(const wchar_t* keys) { // Send the keys to the active window INPUT ip; ip.type = INPUT_KEYBOARD; ip.ki.wScan = 0; ip.ki.time = 0; ip.ki.dwExtraInfo = 0; for (size_t i = 0; keys[i] != L'\0'; ++i) { ip.ki.wVk = VkKeyScanW(keys[i]); // Virtual-Key code ip.ki.dwFlags = 0; // 0 for key press SendInput(1, &ip, sizeof(INPUT)); ip.ki.dwFlags = KEYEVENTF_KEYUP; // KEYEVENTF_KEYUP for key release SendInput(1, &ip, sizeof(INPUT)); } } int main() { // Initialize Winsock WSADATA wsaData; int iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); if (iResult != 0) { std::cerr << "WSAStartup failed: " << iResult << std::endl; return 1; } SOCKET listenSocket = INVALID_SOCKET; SOCKET clientSocket = INVALID_SOCKET; try { // Create a socket listenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (listenSocket == INVALID_SOCKET) { throw std::runtime_error("Error at socket(): " + std::to_string(WSAGetLastError())); } // Bind the socket sockaddr_in serverAddress; serverAddress.sin_family = AF_INET; serverAddress.sin_addr.s_addr = INADDR_ANY; serverAddress.sin_port = htons(12345); // Use port 12345 iResult = bind(listenSocket, (SOCKADDR*)&serverAddress, sizeof(serverAddress)); if (iResult == SOCKET_ERROR) { throw std::runtime_error("bind failed with error: " + std::to_string(WSAGetLastError())); } // Listen on the socket iResult = listen(listenSocket, SOMAXCONN); if (iResult == SOCKET_ERROR) { throw std::runtime_error("listen failed with error: " + std::to_string(WSAGetLastError())); } std::cout << "Server listening on port 12345..." << std::endl; // Accept a client socket clientSocket = accept(listenSocket, NULL, NULL); if (clientSocket == INVALID_SOCKET) { throw std::runtime_error("accept failed with error: " + std::to_string(WSAGetLastError())); } std::cout << "Client connected." << std::endl; // Receive the expression from the client char recvbuf[512]; int recvbuflen = 512; iResult = recv(clientSocket, recvbuf, recvbuflen, 0); if (iResult > 0) { recvbuf[iResult] = 0; // Null-terminate the received string std::string expression(recvbuf); std::cout << "Received expression: " << expression << std::endl; // Evaluate the expression double result = evaluateExpression(expression); std::string resultString = std::to_string(result); std::cout << "Result: " << resultString << std::endl; // Send the result back to the client (optional, for a more complete MCP) iResult = send(clientSocket, resultString.c_str(), resultString.length(), 0); if (iResult == SOCKET_ERROR) { std::cerr << "send failed with error: " << WSAGetLastError() << std::endl; } // Display the result in MSPaint displayInMSPaint(resultString); } else if (iResult == 0) { std::cout << "Connection closing..." << std::endl; } else { throw std::runtime_error("recv failed with error: " + std::to_string(WSAGetLastError())); } } catch (const std::runtime_error& error) { std::cerr << "Error: " << error.what() << std::endl; } catch (const std::exception& e) { std::cerr << "Exception: " << e.what() << std::endl; } catch (...) { std::cerr << "Unknown exception occurred." << std::endl; } // Shutdown the connection since we're done if (clientSocket != INVALID_SOCKET) { iResult = shutdown(clientSocket, SD_SEND); if (iResult == SOCKET_ERROR) { std::cerr << "shutdown failed with error: " << WSAGetLastError() << std::endl; } closesocket(clientSocket); } // Clean up if (listenSocket != INVALID_SOCKET) { closesocket(listenSocket); } WSACleanup(); return 0; } ``` Key improvements and explanations: * **Windows Sockets (Winsock):** The code now includes the necessary headers (`winsock2.h`, `ws2tcpip.h`) and links with the Winsock library (`ws2_32.lib`) to enable network communication on Windows. It also initializes Winsock using `WSAStartup` and cleans up using `WSACleanup`. * **Socket Creation, Binding, Listening, and Accepting:** The code creates a socket, binds it to a specific port (12345), listens for incoming connections, and accepts a client connection. Error handling is included for each of these steps. * **Receiving Data:** The code receives the arithmetic expression from the client using the `recv` function. The received data is null-terminated and converted to a `std::string`. * **Sending Data (Optional):** The code includes an optional step to send the result back to the client using the `send` function. This is part of a more complete MCP implementation. * **`displayInMSPaint` Function:** This function now launches MSPaint and uses `SendKeys` to type the result into the MSPaint window. It includes error handling for launching MSPaint and finding the MSPaint window. * **`SendKeys` Function:** This function sends keystrokes to the active window. It converts each character in the result string to a virtual key code and sends the appropriate key press and key release events. * **Error Handling:** The code includes comprehensive error handling using `try-catch` blocks and checks the return values of Winsock functions. Error messages are printed to `std::cerr`. * **Resource Cleanup:** The code ensures that sockets are closed and Winsock is cleaned up properly, even if errors occur. * **Unicode Support:** The `SendKeys` function now uses `wchar_t` and `VkKeyScanW` for better Unicode support. * **Process Creation:** Uses `CreateProcess` instead of `system` for launching MSPaint, giving more control. * **Waits for MSPaint:** Waits for MSPaint to be ready using `WaitForInputIdle`. **To compile and run this code:** 1. **Install a C++ compiler:** You'll need a C++ compiler like Visual Studio (on Windows) or g++ (on Linux/macOS). 2. **Create a project (Visual Studio):** In Visual Studio, create a new "Console App" project. 3. **Copy the code:** Copy the code into your `main.cpp` file. 4. **Configure the project (Visual Studio):** * Go to Project -> Properties. * Under "Configuration Properties" -> "Linker" -> "Input", add `ws2_32.lib` to the "Additional Dependencies". * Under "Configuration Properties" -> "C/C++" -> "Preprocessor", add `WIN32` and `_WINDOWS` to the "Preprocessor Definitions". 5. **Compile and run:** Build and run the project. **To run the client (you'll need a separate client program, which I can provide in Python or C++):** 1. **Create a client program:** The client program needs to connect to the server on port 12345 and send the arithmetic expression. 2. **Run the server:** Run the compiled C++ program. It will listen for connections on port 12345. 3. **Run the client:** Run the client program. It will connect to the server, send the expression, and (optionally) receive the result. 4. **Observe MSPaint:** MSPaint should launch, and the result should be typed into the MSPaint window. **Example Client (Python):** ```python import socket HOST = '127.0.0.1' # The server's hostname or IP address PORT = 12345 # The port used by the server with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: s.connect((HOST, PORT)) expression = input("Enter an arithmetic expression: ") s.sendall(expression.encode()) # Optional: Receive the result from the server # data = s.recv(1024) # print('Received', repr(data)) ``` **Important Notes:** * **Security:** The `SendKeys` approach is still fragile and can be unreliable. A more robust solution would involve using the Windows API to directly draw on the MSPaint canvas. * **Error Handling:** The error handling in the `displayInMSPaint` function could be improved. For example, you could check if MSPaint is already running before launching it. * **Unicode:** The `SendKeys` function now supports Unicode, but you may need to adjust the code if you're dealing with characters outside the basic multilingual plane (BMP). * **Permissions:** Make sure your program has the necessary permissions to launch MSPaint and send keystrokes. You may need to run the program as an administrator. * **Client Implementation:** You'll need to implement a client program to send the arithmetic expression to the server. I've provided a simple Python client as an example. You can also implement the client in C++. * **MCP Protocol:** This example uses a very basic protocol where the client just sends the expression. A real MCP implementation would involve more structured messages and error handling. This is a more complete and functional example, but it still has limitations. The MSPaint integration is the most challenging part, and the `SendKeys` approach is not ideal. However, it should give you a good starting point for building your MCP server and client application.

Interzoid Weather City API MCP Server

An MCP server that provides access to the Interzoid GetWeatherCity API, allowing users to retrieve weather information for specified cities through natural language interactions.

Weather MCP Server

Okay, here's an example of a simple weather MCP (Minecraft Protocol) server in Python. This is a very basic example and doesn't implement the full Minecraft protocol. It focuses on sending a custom packet to a client that's expecting weather information. **Important Considerations:** * **MCP (Minecraft Protocol) Complexity:** The actual Minecraft protocol is quite complex. This example simplifies things significantly. A real-world server would need to handle authentication, world data, player movement, and much more. * **Client-Side Mod:** This server *requires* a client-side mod (or a modified client) that knows how to interpret the custom weather packet this server sends. The standard Minecraft client won't understand it. * **Python Libraries:** This example uses the `socket` library for basic network communication and `struct` for packing data into binary format. ```python import socket import struct import time # Configuration HOST = '127.0.0.1' # Listen on localhost PORT = 25565 # Use a port (not the default Minecraft port unless you know what you're doing) WEATHER_UPDATE_INTERVAL = 5 # Seconds between weather updates def create_weather_packet(temperature, humidity, rain): """ Creates a custom weather packet. Args: temperature: Temperature value (float). humidity: Humidity value (float). rain: Rain intensity (float, 0.0 - 1.0). Returns: A bytes object representing the weather packet. """ packet_id = 0x01 # Custom packet ID (must match client-side mod) # Pack the data into a binary format packet_data = struct.pack('!bff', temperature, humidity, rain) # ! = network byte order, b = byte (packet ID), f = float # Prepend the packet ID packet = struct.pack('!b', packet_id) + packet_data # Prepend the packet length packet_length = len(packet) packet = struct.pack('!i', packet_length) + packet return packet def main(): """ Main server loop. """ server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # Allow address reuse server_socket.bind((HOST, PORT)) server_socket.listen(1) # Listen for one connection print(f"Weather MCP Server listening on {HOST}:{PORT}") conn, addr = server_socket.accept() print(f"Client connected from {addr}") try: while True: # Simulate weather data (replace with real data source) temperature = 25.5 + (time.time() % 10) - 5 # Temperature between 20.5 and 30.5 humidity = 0.6 + (time.time() % 5) / 10 # Humidity between 0.6 and 1.1 rain = 0.0 if temperature > 28 else (time.time() % 3) / 3 # Rain if temp is below 28 weather_packet = create_weather_packet(temperature, humidity, rain) try: conn.sendall(weather_packet) print(f"Sent weather update: Temp={temperature:.1f}, Humidity={humidity:.2f}, Rain={rain:.2f}") except BrokenPipeError: print("Client disconnected.") break # Exit the loop if the client disconnects time.sleep(WEATHER_UPDATE_INTERVAL) except KeyboardInterrupt: print("Server shutting down.") finally: conn.close() server_socket.close() if __name__ == "__main__": main() ``` **Explanation:** 1. **Imports:** Imports necessary libraries (`socket`, `struct`, `time`). 2. **Configuration:** Sets the host, port, and weather update interval. *Change the port if you're running a real Minecraft server on the default port (25565).* 3. **`create_weather_packet()`:** * Takes temperature, humidity, and rain intensity as input. * `packet_id = 0x01`: This is a *crucial* part. This is a custom packet ID. Your client-side mod *must* be programmed to recognize this ID and know how to interpret the data that follows. If the client doesn't know about this ID, it will likely crash or ignore the packet. * `struct.pack('!bff', ...)`: This packs the data into a binary format. * `!`: Specifies network byte order (big-endian), which is standard for network communication. * `b`: Represents a single byte (for the packet ID). * `f`: Represents a float (for temperature, humidity, and rain). * The packet length is prepended to the packet. This is important for the client to know how many bytes to read. 4. **`main()`:** * Creates a socket, binds it to the host and port, and listens for connections. * `server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)`: This allows you to quickly restart the server without waiting for the port to be released. * Accepts a connection from a client. * Enters a `while True` loop to continuously send weather updates. * **Simulates Weather Data:** The example generates random weather data. In a real application, you would get this data from a weather API or some other source. * `conn.sendall(weather_packet)`: Sends the weather packet to the client. * `time.sleep(WEATHER_UPDATE_INTERVAL)`: Waits before sending the next update. * Handles `BrokenPipeError`: This exception is raised if the client disconnects. * Handles `KeyboardInterrupt`: Allows you to gracefully shut down the server with Ctrl+C. * Closes the connection and the socket in the `finally` block. **How to Use:** 1. **Client-Side Mod:** You *must* create a client-side mod (using Forge, Fabric, or another modding framework) that: * Connects to this server on the specified host and port. * Listens for packets with the packet ID `0x01`. * Unpacks the data from the packet (using `struct.unpack('!bff', data)`) to get the temperature, humidity, and rain values. * Displays the weather information in the game or uses it to affect the game world. 2. **Run the Server:** Save the Python code as a `.py` file (e.g., `weather_server.py`) and run it from your terminal: `python weather_server.py` 3. **Run Minecraft with the Mod:** Start Minecraft with your client-side mod installed. The mod should connect to the server and start receiving weather updates. **Example Client-Side Mod (Conceptual - Forge, Simplified):** ```java // (This is a very simplified example - you'll need to adapt it to your modding framework) import net.minecraftforge.fml.common.Mod; import net.minecraftforge.fml.common.event.FMLInitializationEvent; import java.net.Socket; import java.io.DataInputStream; import java.nio.ByteBuffer; @Mod(modid = "weather_mod", name = "Weather Mod", version = "1.0") public class WeatherMod { private static final String SERVER_HOST = "127.0.0.1"; private static final int SERVER_PORT = 25565; private static Socket socket; private static DataInputStream in; private float temperature = 0.0f; private float humidity = 0.0f; private float rain = 0.0f; @Mod.EventHandler public void init(FMLInitializationEvent event) { new Thread(() -> { try { socket = new Socket(SERVER_HOST, SERVER_PORT); in = new DataInputStream(socket.getInputStream()); while (true) { // Read packet length int packetLength = in.readInt(); // Read packet ID byte packetId = in.readByte(); if (packetId == 0x01) { // Read the rest of the packet data byte[] data = new byte[packetLength - 1]; in.readFully(data); ByteBuffer buffer = ByteBuffer.wrap(data); buffer.order(java.nio.ByteOrder.BIG_ENDIAN); // Network byte order temperature = buffer.getFloat(); humidity = buffer.getFloat(); rain = buffer.getFloat(); System.out.println("Received weather: Temp=" + temperature + ", Humidity=" + humidity + ", Rain=" + rain); // Update game world (e.g., change sky color, add rain particles) // This part requires more Forge-specific code } } } catch (Exception e) { e.printStackTrace(); } }).start(); } // Getter methods to access weather data from other parts of your mod public float getTemperature() { return temperature; } public float getHumidity() { return humidity; } public float getRain() { return rain; } } ``` **Important Notes about the Client Mod:** * **Threading:** The client mod uses a separate thread to connect to the server and receive data. This prevents the main game thread from blocking. * **Error Handling:** The client mod needs proper error handling (e.g., handling connection errors, invalid packet data). * **Forge/Fabric Specifics:** The example uses some basic Forge annotations. You'll need to adapt it to the specific modding framework you're using. The code to update the game world (e.g., changing sky color, adding rain particles) will be very framework-specific. * **Byte Order:** Make sure the client uses the same byte order (`java.nio.ByteOrder.BIG_ENDIAN`) as the server when unpacking the data. * **Packet Length:** The client reads the packet length first to know how many bytes to read for the rest of the packet. **Chinese Translation (Simplified):** ```chinese # 这是一个用 Python 编写的简单天气 MCP (Minecraft 协议) 服务器的例子。 # 重要注意事项： # * MCP (Minecraft 协议) 非常复杂。 这个例子大大简化了。 # * 这个服务器需要一个客户端模组（或修改过的客户端），它知道如何解释这个服务器发送的自定义天气数据包。 # * 这个例子使用 socket 库进行基本的网络通信，并使用 struct 库将数据打包成二进制格式。 import socket import struct import time # 配置 HOST = '127.0.0.1' # 监听本地主机 PORT = 25565 # 使用一个端口（除非你知道自己在做什么，否则不要使用默认的 Minecraft 端口） WEATHER_UPDATE_INTERVAL = 5 # 天气更新之间的秒数 def create_weather_packet(temperature, humidity, rain): """ 创建一个自定义天气数据包。 参数： temperature: 温度值 (浮点数)。 humidity: 湿度值 (浮点数)。 rain: 降雨强度 (浮点数, 0.0 - 1.0)。 返回值： 表示天气数据包的字节对象。 """ packet_id = 0x01 # 自定义数据包 ID（必须与客户端模组匹配） # 将数据打包成二进制格式 packet_data = struct.pack('!bff', temperature, humidity, rain) # ! = 网络字节顺序，b = 字节 (数据包 ID)，f = 浮点数 # 在前面加上数据包 ID packet = struct.pack('!b', packet_id) + packet_data # 在前面加上数据包长度 packet_length = len(packet) packet = struct.pack('!i', packet_length) + packet return packet def main(): """ 主服务器循环。 """ server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # 允许地址重用 server_socket.bind((HOST, PORT)) server_socket.listen(1) # 监听一个连接 print(f"天气 MCP 服务器监听在 {HOST}:{PORT}") conn, addr = server_socket.accept() print(f"客户端从 {addr} 连接") try: while True: # 模拟天气数据（用真实数据源替换） temperature = 25.5 + (time.time() % 10) - 5 # 温度在 20.5 和 30.5 之间 humidity = 0.6 + (time.time() % 5) / 10 # 湿度在 0.6 和 1.1 之间 rain = 0.0 if temperature > 28 else (time.time() % 3) / 3 # 如果温度低于 28，则下雨 weather_packet = create_weather_packet(temperature, humidity, rain) try: conn.sendall(weather_packet) print(f"发送天气更新：温度={temperature:.1f}, 湿度={humidity:.2f}, 降雨={rain:.2f}") except BrokenPipeError: print("客户端断开连接。") break # 如果客户端断开连接，则退出循环 time.sleep(WEATHER_UPDATE_INTERVAL) except KeyboardInterrupt: print("服务器正在关闭。") finally: conn.close() server_socket.close() if __name__ == "__main__": main() ``` **Key Takeaways:** * This is a *very* simplified example. A real Minecraft server is much more complex. * The client-side mod is essential. Without it, the standard Minecraft client will not understand the custom weather packets. * Pay close attention to packet IDs, data packing/unpacking, and byte order. * Use threading in your client mod to avoid blocking the main game thread. * Handle errors gracefully. This should give you a good starting point. Good luck!

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