mcpo
Simple proxy that exposes MCP servers as OpenAPI endpoints.
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Use cases
About mcpo
mcpo is listed in our MCP servers category and is aimed at builders. Simple proxy that exposes MCP servers as OpenAPI endpoints. Pricing, as the maker states it: Open source. Maturity: Active. We last checked the official link on 2026-10-16.
What is mcpo?
mcpo, from Open WebUI, is a simple proxy that takes an MCP server command and exposes it as a standard RESTful OpenAPI server.
That way MCP tools work with LLM agents and apps that expect OpenAPI, and gain standard features such as docs that raw stdio MCP servers lack.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: github.com/open-webui/mcpo.
Who is mcpo for?
Developers who want to use MCP tools from OpenAPI-based apps such as Open WebUI.
mcpo at a glance
- Open source: Yes (MIT License)
- GitHub: open-webui/mcpo · 4,404 stars (as of Oct 21, 2026)
Key features
- Exposes MCP servers as OpenAPI
- Adds docs and standard HTTP
- Works with OpenAPI-based agents
mcpo FAQ
What is mcpo?
mcpo, from Open WebUI, is a simple proxy that takes an MCP server command and exposes it as a standard RESTful OpenAPI server.
Who is mcpo for?
Developers who want to use MCP tools from OpenAPI-based apps such as Open WebUI.
Is mcpo free?
mcpo's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is mcpo open source?
Yes. mcpo is released under the MIT License, according to its GitHub repository.
What are alternatives to mcpo?
Similar tools include MCP reference servers, agentgateway, AntV MCP Server Chart, Zomato MCP, Mural MCP and PayPal MCP.
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Related lists
🏆 See also: GitHub MCP Server alternatives · All best-of lists
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