Ferritin — Rust documentation for Gemini CLI

rs.ferritin/rustdoc

Search and read Rust documentation for the standard library and any crate on crates.io

client:Gemini CLI transport:streamable-http tools:2

Install Ferritin — Rust documentation in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "rustdoc": {
      "httpUrl": "https://ferritin.rs/mcp"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs