ctxs.ai is a community-curated registry of context windows.

• A centralized hub for discovering context windows
• An MCP server to integrate with your workflows (soon ✨)

• LLMs are trained with large datasets, constrained by a training cut off date
• Providing more precise context about a project, libraries used, available tools and frameworks improves model performance
• IDEs like Cursor are starting develop their own indexing system but this makes it hard to share what’s working
• Serve as an open-source “deterministic checkpoint” that can be used for evals
• Allow library / framework authors to publish LLM-targeted docs

• Website: https://ctxs.ai
• Main repo: https://github.com/ctxs-ai/ctxs.ai
• MCP server: soon ✨
• CLI Installer: soon ✨