Rust-cargo-docs-rag-mcp

they say necessity is the mother of invention.

github.com/promptexecution/rust-cargo-docs-rag

is an mcp server that downloads rust docs, counts the tokens, provides pagination and structures the information in a way that b00t can access it.

I forked this because the original MCP server was so bad ..

I noticed other people have also made rust doc servers; and google has picked those up but my version is better because it is dynamic (it allows the agent to request a specific version, rather than needing to initialize the environment with all the crates you need)

In that way — it’s a built in RAG (retrieval augmentation system) for rust crate docs.