# Catalogue

> Public catalogue components.

JSON: https://leyline.ahensya.com/api/v1/components

- [Context.dev](https://leyline.ahensya.com/components/context-dev.md): Context.dev (also @getcontextdev; YC S26 per founder/company bios) markets itself as a unified web-context API for software and agents: scrape, crawl, search, brand/people enrichment, monitors, MCP, and SDKs — one API key.
- [MCP / AI Gateway](https://leyline.ahensya.com/components/mcp-ai-gateway.md): Gateway layer that routes model calls, discovers MCP tools, and applies identity, policy, and spend controls before invocations.
- [Ditto](https://leyline.ahensya.com/components/ditto.md): Ditto is an open-source deterministic website cloner from ion.design. Point it at a public URL and it returns a cloned implementation as componentized Next.js or Vite code (Tailwind styling), with marketing copy citing ~5 minutes end-to-end.
- [MarkItDown](https://leyline.ahensya.com/components/markitdown.md): MarkItDown (microsoft/markitdown) is a lightweight Python utility that converts many file types to Markdown for LLMs and text-analysis pipelines. README positions it near textract, but focused on preserving structure (headings, lists, tables, links) as Markdown for models rather than high-fidelity human publishing.
- [Railcode](https://leyline.ahensya.com/components/railcode.md): Railcode is Yakko Majuri’s secure / governed cloud for internal software — apps and agents (“internal Vercel” framing on the launch post). Build with your own tools; deploy into a company-governed sandbox with auth, permissions, data, and connectors centralized.
- [REA](https://leyline.ahensya.com/components/rea.md): README tagline: "One MCP for reverse engineering across binaries, applications, and runtime behavior." The agent calls REA through MCP to inspect a local target and trace relevant code; REA returns findings with their evidence, and the agent uses them to explain the behavior or write and test an implementation.
- [Rikyū](https://leyline.ahensya.com/components/rikyu.md): Rikyū (named for the tea master) is an AI design SaaS: describe what you need in a sentence and it generates a coherent brand/asset set — logo, web, social, print — carried across one visual identity. Positioning: "skip the design work" — no design skills, no asset hunting, one design language across everything that follows.