open-webui/mcpo is a Python-based proxy server that exposes MCP server commands as a standard RESTful OpenAPI HTTP server. The latest release shown on GitHub is v0.0.20, the license is MIT, and it has 4405 stars. MCP (Model Context Protocol) is a protocol for connecting external tools, and this project exposes stdio MCP servers over HTTP so that REST/OpenAPI consumers and agents can hook into them.
The README states that it automatically generates interactive documentation for each tool with no separate configuration required. The generated spec can be used as-is by OpenAPI tools, SDKs, and UIs, so it integrates smoothly, and MCP servers using SSE and Streamable HTTP are supported as well. A single configuration file can serve multiple MCP tools, and OAuth 2.1 authentication is supported for the streamable-http type.
That said, this source has no performance figures or compatibility testing. The blurb describes the project as a simple and safe proxy, but it does not include security requirements or verification details. The change list for v0.0.20 is not given either, so what this release fixed has to be checked directly in the release notes. The project was created on March 30, 2025, and there are no test results or adoption examples in the source. The basis for this judgment is limited to the feature descriptions in the README and the release listing.