You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.
ray-mcp-server was reported malicious
OSV:MAL-2026-5325 - Malicious code in ray-mcp-server (PyPI)

ray-mcp-server
0.2.0

This version was deleted from PyPI around 2026-06-08. Installing fails with:
$ pip3 install ray-mcp-server==0.2.0 ERROR: Could not find a version that satisfies the requirement ray-mcp-server==0.2.0

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2026-06-07/ \ ray-mcp-server==0.2.0
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip: