mcpo
★ 4.4k
vs
mcp-proxy
★ 2.8k
mcpo vs mcp-proxy
mcpo: mcpo is a simple proxy that transforms any Model Context Protocol (MCP) server command into a standard RESTful OpenAPI server. This allows LLM agents and other applications to seamlessly interact with MCP tools without custom protocols or glue code.; mcp-proxy: mcp-proxy is a versatile tool designed to switch between various server transport protocols, primarily facilitating communication between stdio and SSE/Streamable HTTP. It operates in two main modes: proxying stdio to a remote SSE server, or exposing a local stdio server via an SSE endpoint.
Editorial Head-to-Head Analysis
mcpo turns an MCP server into an OpenAPI HTTP server and is MIT licensed. mcp-proxy keeps the MCP protocol and only changes the transport.
01
TL;DR
mcpoMCP Servers · ★ 4.4k
When to choose:
- Your tool expects an OpenAPI server (as Open WebUI does) and you want to use an MCP server without speaking the MCP protocol.
- You want one command to get an HTTP endpoint with generated interactive docs and an optional API key.
- You want a config file in Claude Desktop format with per-server routes, hot reload and disabledTools.
When to skip:
- You need MCP features beyond tool calls: OpenAPI maps request and response calls only.
- You want to aggregate many servers behind namespaces and team authentication; an aggregator such as MetaMCP does that.
- You need a very actively developed project: the maintenance check below shows its last commit on 2026-02-27.
mcp-proxyMCP Servers · ★ 2.8k
When to choose:
- Your client only speaks stdio (such as Claude Desktop) and the MCP server you need is remote over SSE or Streamable HTTP.
- You want to expose a local stdio server over SSE or Streamable HTTP so remote clients can reach it.
- You want a small single-purpose tool that can host several named stdio servers from an mcpServers-style JSON file.
When to skip:
- You need authentication, tool filtering or an admin UI: the README is about transport, not access control.
- Your client already supports remote transports natively, so a proxy adds a process for no gain.
- You need clear licence terms: our data shows no licence for the repository, so confirm them first.
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Side-by-Side Comparison
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Features
mcpo01Instant OpenAPI compatibility for MCP tools.
02Enhances security, stability, and scalability with trusted web standards.
03Automatically generates interactive OpenAPI documentation for every tool.
04Eliminates custom protocols and glue code through pure HTTP.
05Supports OAuth 2.1 authentication for secure access.
mcp-proxy01Proxy stdio clients to remote SSE/Streamable HTTP servers.
02Expose local stdio servers as remote SSE endpoints.
03Manage multiple stdio-based MCP servers via named server configurations.
04Integrated OAuth2 authentication for client connections.
05Configurable transport types, headers, host/port, and CORS settings.
04
Use Cases
mcpo↳Integrating existing MCP tools with LLM agents expecting OpenAPI.
↳Exposing custom or legacy MCP functionalities as standard web services.
↳Developing interoperable AI applications with standardized tool access.
mcp-proxy↳Enable stdio-only clients (e.g., Claude Desktop) to connect to remote SSE/Streamable HTTP servers.
↳Allow remote LLM clients to access local stdio-based MCP servers via an SSE interface.
↳Consolidate and manage multiple distinct stdio MCP servers via named proxy endpoints under a single instance.
05
Best For
mcpoEssential
mcp-proxyEssentialTrending
FAQ
FAQ
What is the difference between mcpo and mcp-proxy?
mcpo turns an MCP server into an OpenAPI HTTP server and is MIT licensed. mcp-proxy keeps the MCP protocol and only changes the transport.
Which is better, mcpo or mcp-proxy?
The best choice depends on your use case. Choose mcpo if Integrating existing MCP tools with LLM agents expecting OpenAPI., and mcp-proxy if Enable stdio-only clients (e.g., Claude Desktop) to connect to remote SSE/Streamable HTTP servers..
Is mcpo free or open source?
Yes, mcpo is open source on GitHub (MIT).
Is mcp-proxy free or open source?
Yes, mcp-proxy is open source on GitHub (MIT).
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