Context7, I assume? I wanted to like context7 but I constantly need documentation that is either private or not in a format that context7 supports. Instead, I scrape the docs to Markdown, stick them into a "context" folder[1], and use Cursor's vector codebase indexing. This allows the agent to literally ask questions like "how do I do ABC with library XYZ?" and the vector database delivers a chunked answer from all available documentation. This is, IMO, much better than how context7 works: context7 just returns whole pages of documentation, polluting the context window with info that isn't relevant to what the agent wanted to know.

I have done this with entire textbooks. Find a PDF and get GPT-5 to transcribe it page by page to Markdown. Costs a couple bucks and turns the agent into a wizard on that subject.

Context7, too, could easily have been a command line tool that both you and the agent can use. Even now, I don't see what MCP--specifically--brings to the table.

[1] One trick for Cursor users: put "/context/" in .gitignore and "!/context/" in .cursorignore. This will keep it out of git but still index it.