rust-docs-mcp MCP server

MCP server for agents to explore rust docs, analyze source code, and build with confidence

What rust-docs-mcp does

Summarised from the project README; check the repository for the latest details.

Features

• [x] Multi-source caching — crates.io, GitHub repositories, local
• [x] Workspace support — Individual member analysis and caching for cargo
• [x] Documentation search — Pattern matching with kind/path filtering and
• [x] Item inspection — Detailed signatures, fields, methods, and
• [x] Source code access — Line-level precision with parameterized
• [x] Dependency analysis — Direct and transitive dependency trees with

Tools exposed (17)

• cache_crate – Download and cache a crate from various sources. Set
• remove_crate – Remove cached crate versions to free disk space
• list_cached_crates – View all cached crates with versions and sizes
• list_crate_versions – List cached versions for a specific crate
• get_crates_metadata – Batch metadata queries for multiple crates
• cache_operations – Manage and monitor background caching operations (list, status, cancel, clear)
• list_crate_items – Browse all items in a crate with optional filtering
• search_items – Full search with complete documentation (may hit token
• search_items_preview – Lightweight search returning only IDs, names, and
• get_item_details – Detailed information about specific items (signatures,
• get_item_docs – Extract just the documentation string for an item
• get_item_source – View source code with configurable context lines
• get_dependencies – Analyze direct and transitive dependencies with filtering
• structure – Generate hierarchical module tree using integrated cargo-modules
• Search
• search_items_fuzzy – Fuzzy search with typo tolerance and semantic
• Request – Build behavior

Requirements

• Rust nightly toolchain (for Rustdoc JSON generation)
• Network access to download crates from crates.io

How to install rust-docs-mcp

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