Personal Knowledge
Think clearly,
from anywhere.
OpenThink is a personal knowledge base built for AI. Capture thoughts, organise folders, and access everything through Claude — on any device.
Full-text search across all your notes and thoughts
Folder-level sharing — private by default, shareable when you want
MCP-native — Claude reads and writes your knowledge directly
Runs on Cloudflare — fast everywhere, zero cold starts
How it works
MCP, end to end.
01
Connect
Add the MCP server to Claude. Sign in once with your API key — any device, any time.
02
Capture
Tell Claude to save a thought, link an idea, or store a note. It organises it into your folders.
03
Retrieve
Ask Claude anything. Full-text search returns relevant thoughts in context, instantly.
04
Share
Grant a collaborator read or edit access to a specific folder. Everything else stays private.