kbrain
context for your AI prompts — curated by experts

Give your AI the right context.
Use expert brains or build one in minutes.

Kbrain.io delivers the context behind every prompt — connect it to Claude, ChatGPT, or any MCP-compatible assistant.

Build your own brain Explore the marketplace

📂 Google Drive folder sync

“Connect a folder, not a file”

Sync an entire Google Drive folder. Your brain updates automatically when your documents change. NotebookLM makes you upload files one by one. (Coming soon)

🔌 One brain, every AI

“Works with the assistant you already use”

Get a single MCP endpoint and plug it into Claude, ChatGPT, Cursor, or any MCP-compatible tool. Your knowledge travels with you across platforms.

🚀 Private today, marketplace tomorrow

“Build for yourself. Share when you're ready.”

Start with a private brain. When it's valuable enough, publish it to the KBrain marketplace and earn on every query.

Use cases

🏠 Real estate investor — Synced French rental regulations and tax PDFs to a private brain. Queries it from Claude for jurisdiction-specific answers.
🔐 Security researcher — Built a private brain with NIST PQC standards and internal specs. Forces Claude to answer only from verified sources.
🎙️ Content creator — Packaged 3 years of newsletters into a public brain. Earns passive income every time an AI agent queries their expertise.
💼 Consultant — Created a brain scoped to each client engagement. Shares the MCP endpoint with the client for the project duration.

Private by default

Brains start private and usable immediately through your MCP connector.

Works with any AI

One MCP endpoint for Claude, ChatGPT, and other MCP-compatible assistants.

Expert knowledge

Use curated brains from specialists, or build one from your own docs.

Build your first brain in 5 minutes. Free.

Get started