Oatpp
** - Anthropic's Model Context Protocol implementation for Oat++
What is Oatpp?
Oatpp is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to ** - anthropic's model context protocol implementation for oat++
** - Anthropic's Model Context Protocol implementation for Oat++
This server falls under the Developer Tools category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- ** - Anthropic's Model Context Protocol implementation for O
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx oatppConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Oatpp
oatpp-mcp is a C++ library that implements Anthropic's Model Context Protocol on top of the Oat++ (oatpp) web framework, enabling developers to build high-performance MCP servers in C++. It supports prompts, resources, and tools as first-class MCP primitives and can auto-generate MCP tools from existing Oat++ ApiController endpoints, making it straightforward to expose a C++ web service to AI agents. C++ developers building performance-sensitive or embedded applications who want to integrate with Claude and other MCP clients will find this the most natural starting point.
Prerequisites
- C++ compiler with C++17 support (GCC, Clang, or MSVC)
- CMake 3.16 or newer
- oatpp core library installed (https://github.com/oatpp/oatpp)
- Git for cloning the repository
Install the oatpp core library
oatpp-mcp depends on the main oatpp module. Clone and install it first using CMake.
git clone https://github.com/oatpp/oatpp.git
cd oatpp
mkdir build && cd build
cmake ..
make installClone oatpp-mcp
Clone the oatpp-mcp repository to your development machine.
git clone https://github.com/oatpp/oatpp-mcp.git
cd oatpp-mcpBuild and install oatpp-mcp
Build the library with CMake and install it to your system so it is available as a CMake package.
mkdir build && cd build
cmake ..
make installAdd oatpp-mcp to your project's CMakeLists.txt
In your C++ project, find and link against oatpp-mcp using CMake's find_package.
find_package(oatpp-mcp REQUIRED)
target_link_libraries(my-mcp-server
oatpp::oatpp
oatpp-mcp::oatpp-mcp
)Create an MCP server with STDIO transport
Instantiate oatpp::mcp::Server, register your prompts, resources, and tools, then call stdioListen() to start serving over standard input/output.
#include "oatpp-mcp/Server.hpp"
int main() {
oatpp::mcp::Server server;
server.addPrompt(std::make_shared<prompts::CodeReview>());
server.addResource(std::make_shared<resource::File>());
server.addTool(std::make_shared<tools::Logger>());
server.stdioListen();
return 0;
}Configure Claude Desktop to launch your binary
Register your compiled MCP server binary in claude_desktop_config.json. Important: redirect oatpp logging to a file rather than stdout to avoid interfering with the STDIO protocol.
{
"mcpServers": {
"my-cpp-server": {
"command": "/path/to/your/compiled/mcp-server",
"args": []
}
}
}Oatpp Examples
Client configuration
Register a compiled oatpp-mcp binary as an MCP server in Claude Desktop. Replace the command path with your actual binary location.
{
"mcpServers": {
"my-cpp-server": {
"command": "/usr/local/bin/my-mcp-server",
"args": []
}
}
}Prompts to try
Once your oatpp-mcp server exposes tools and prompts, interact with them through Claude Desktop.
- "Use the Logger tool to record a message to the server log"
- "Call the code review prompt with my C++ function"
- "Fetch the file resource for config.json from the server"
- "List all available tools exposed by the C++ MCP server"
- "Call the auto-generated API endpoint tool to query my service"Troubleshooting Oatpp
CMake cannot find oatpp or oatpp-mcp during configure
Ensure oatpp and oatpp-mcp were both installed with make install. On Linux, you may need to run ldconfig after installation. Pass -DCMAKE_PREFIX_PATH=/usr/local to cmake if headers are in a non-standard location.
MCP client receives malformed responses or protocol errors
oatpp logs to stdout by default, which corrupts the STDIO transport. Configure a custom logger that writes to a file: set up a file-based logger before creating the server object.
HTTP SSE transport does not connect from Claude Desktop
Claude Desktop currently uses STDIO transport. For SSE, use an MCP client that supports HTTP SSE. Ensure your server listens on the correct port and the URL is reachable from the client.
Frequently Asked Questions about Oatpp
What is Oatpp?
Oatpp is a Model Context Protocol (MCP) server that ** - anthropic's model context protocol implementation for oat++ It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Oatpp?
Follow the installation instructions on the Oatpp GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Oatpp?
Oatpp works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Oatpp free to use?
Yes, Oatpp is open source and available under the Apache-2.0 license. You can use it freely in both personal and commercial projects.
Oatpp Alternatives — Similar Developer Tools Servers
Looking for alternatives to Oatpp? Here are other popular developer tools servers you can use with Claude, Cursor, and VS Code.
Ecc
★ 188.2kThe agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Javaguide
★ 155.8kJava 面试 & 后端通用面试指南，覆盖计算机基础、数据库、分布式、高并发、系统设计与 AI 应用开发
Gemini CLI
★ 104.5kA secure MCP server that wraps the Google Gemini CLI, allowing clients to query Gemini models using local OAuth sessions without requiring an API key. It provides tools for model interaction and diagnostics with built-in protection against command in
Awesome MCP Servers
★ 87.3k⭐ Curated list of Model Context Protocol (MCP) servers - tools that extend Claude Desktop, Cursor, Windsurf, and other MCP clients with custom capabilities.
MCP Servers
★ 86.0kModel Context Protocol Servers
CC Switch
★ 77.5kA cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Gemini CLI & Hermes Agent. Only official website: ccswitch.io
Browse More Developer Tools MCP Servers
Explore all developer tools servers available in the MCPgee directory. Each server includes setup guides for Claude, Cursor, and VS Code.
Set Up Oatpp in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
Ready to use Oatpp?
Browse our complete directory of 33,000+ MCP servers, read setup guides for your editor, and start building with the Model Context Protocol.