mcpo is a simple and easy-to-use proxy tool that can quickly convert any MCP tool into an OpenAPI-compatible HTTP server, enabling access through standard RESTful interfaces and facilitating integration with LLM agents and applications.
5 points
20.9K

What is mcpo?

mcpo is a simple and efficient proxy tool that can convert any command-line tool based on the Model Context Protocol (MCP) into an HTTP service compliant with the OpenAPI standard. By exposing functions through RESTful APIs, traditional tools can seamlessly integrate with modern LLM applications and automation processes.

How to use mcpo?

Simply specify the MCP tool command to be proxied in the command line, and mcpo will automatically generate the corresponding HTTP endpoints, OpenAPI documentation, and an interactive test interface. It supports two modes: single-command proxy and batch proxy using a configuration file.

Use cases

When you need to integrate local tools into an AI workflow, build an automation pipeline, or add a standardized API interface to an existing tool, mcpo is the best choice. It is particularly suitable for scenarios that require integration with AI platforms such as Open WebUI.

Main Features

Automatic OpenAPI Conversion
Automatically convert MCP tools into HTTP services compliant with the OpenAPI 3.0 specification without writing any code
Parallel Proxy for Multiple Tools
Simultaneously proxy multiple MCP tools through a configuration file, with each tool having an independent API endpoint
SSE Streaming Support
Natively support MCP tools using the Server-Sent Events (SSE) protocol for real-time data push
Out-of-the-Box Security
Built-in API key authentication mechanism to protect service endpoints from unauthorized access
Advantages
๐Ÿš€ Zero-configuration conversion: Obtain a standardized API without modifying the original tool code
๐Ÿ”Œ Wide compatibility: Any tool following the MCP protocol can be immediately integrated
๐Ÿ“š Automatic documentation: Interactive Swagger UI is automatically generated
๐Ÿ›ก๏ธ Enhanced security: A more secure HTTP channel compared to native stdio communication
Limitations
Performance overhead: The HTTP protocol introduces additional latency compared to direct stdio communication
Functionality limitations: Some advanced MCP features may not be perfectly mapped to the RESTful model
Learning curve: Basic knowledge of OpenAPI ecosystem-related tools is required

How to Use

Install mcpo
Install mcpo via Python pip or the uv tool
Start the proxy service
Specify the MCP tool command to be proxied in the command line
Access the API documentation
Open the automatically generated interactive documentation interface in a browser

Usage Examples

Time service proxy
Convert a local time query tool into an API service
Multi-tool configuration
Simultaneously proxy multiple tools using a configuration file

Frequently Asked Questions

Will mcpo affect the functionality of the original tool?
How to ensure API access security?
Is Windows system supported?

Related Resources

Official Documentation
Detailed integration and usage guide
GitHub Repository
Source code and issue tracking
MCP Protocol Specification
Understand the working principle of the underlying protocol

Installation

Copy the following command to your Client for configuration
Note: Your key is sensitive information, do not share it with anyone.

Alternatives

V
Vestige
Vestige is an AI memory engine based on cognitive science. By implementing 29 neuroscience modules such as prediction error gating, FSRS - 6 spaced repetition, and memory dreaming, it provides long - term memory capabilities for AI. It includes a 3D visualization dashboard and 21 MCP tools, runs completely locally, and does not require the cloud.
Rust
4.5K
4.5 points
B
Better Icons
An MCP server and CLI tool that provides search and retrieval of over 200,000 icons, supports more than 150 icon libraries, and helps AI assistants and developers quickly obtain and use icons.
TypeScript
6.7K
4.5 points
A
Assistant Ui
assistant - ui is an open - source TypeScript/React library for quickly building production - grade AI chat interfaces, providing composable UI components, streaming responses, accessibility, etc., and supporting multiple AI backends and models.
TypeScript
7.3K
5 points
A
Apify MCP Server
The Apify MCP Server is a tool based on the Model Context Protocol (MCP) that allows AI assistants to extract data from websites such as social media, search engines, and e-commerce through thousands of ready-to-use crawlers, scrapers, and automation tools (Apify Actors). It supports OAuth and Skyfire proxy payment and can be integrated into MCP clients such as Claude and VS Code through HTTPS endpoints or local stdio.
TypeScript
6.5K
5 points
R
Rsdoctor
Rsdoctor is a build analysis tool specifically designed for the Rspack ecosystem, fully compatible with webpack. It provides visual build analysis, multi - dimensional performance diagnosis, and intelligent optimization suggestions to help developers improve build efficiency and engineering quality.
TypeScript
9.4K
5 points
N
Next Devtools MCP
The Next.js development tools MCP server provides Next.js development tools and utilities for AI programming assistants such as Claude and Cursor, including runtime diagnostics, development automation, and document access functions.
TypeScript
10.8K
5 points
T
Testkube
Testkube is a test orchestration and execution framework for cloud-native applications, providing a unified platform to define, run, and analyze tests. It supports existing testing tools and Kubernetes infrastructure.
Go
6.5K
5 points
M
MCP Windbg
An MCP server that integrates AI models with WinDbg/CDB for analyzing Windows crash dump files and remote debugging, supporting natural language interaction to execute debugging commands.
Python
11.5K
5 points
G
Gitlab MCP Server
Certified
The GitLab MCP server is a project based on the Model Context Protocol that provides a comprehensive toolset for interacting with GitLab accounts, including code review, merge request management, CI/CD configuration, and other functions.
TypeScript
24.4K
4.3 points
N
Notion Api MCP
Certified
A Python-based MCP Server that provides advanced to-do list management and content organization functions through the Notion API, enabling seamless integration between AI models and Notion.
Python
20.4K
4.5 points
M
Markdownify MCP
Markdownify is a multi-functional file conversion service that supports converting multiple formats such as PDFs, images, audio, and web page content into Markdown format.
TypeScript
34.3K
5 points
D
Duckduckgo MCP Server
Certified
The DuckDuckGo Search MCP Server provides web search and content scraping services for LLMs such as Claude.
Python
72.6K
4.3 points
U
Unity
Certified
UnityMCP is a Unity editor plugin that implements the Model Context Protocol (MCP), providing seamless integration between Unity and AI assistants, including real - time state monitoring, remote command execution, and log functions.
C#
31.1K
5 points
F
Figma Context MCP
Framelink Figma MCP Server is a server that provides access to Figma design data for AI programming tools (such as Cursor). By simplifying the Figma API response, it helps AI more accurately achieve one - click conversion from design to code.
TypeScript
65.4K
4.5 points
G
Gmail MCP Server
A Gmail automatic authentication MCP server designed for Claude Desktop, supporting Gmail management through natural language interaction, including complete functions such as sending emails, label management, and batch operations.
TypeScript
21.0K
4.5 points
C
Context7
Context7 MCP is a service that provides real-time, version-specific documentation and code examples for AI programming assistants. It is directly integrated into prompts through the Model Context Protocol to solve the problem of LLMs using outdated information.
TypeScript
96.8K
4.7 points