Ferritin
Indexes rustdoc JSON to provide instant, type-aware search and navigation across crate boundaries.
A documentation search tool for Rust crates that indexes rustdoc JSON to provide instant, type-aware search and navigation across crate boundaries. It serves software developers and engineering teams who need to quickly find and understand Rust APIs. It is delivered as a web application, an MCP server for coding agents, and a local CLI/TUI, differentiating itself by following re-exports and external crate definitions.
Key features
- Search as you type
- Results rank documentation, intra-doc links, signatures
- Hover preview of types
- Follow definitions across crate boundaries
- Crate tree navigation on left
- Live outline on right
- MCP server for coding agents
- Local CLI and TUI
- Agent Skill for workspace docs
Social posts
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GTM channels
- API
- Docs
ICP
- Software developers
- Engineering teams
- Startups