# DoppelBrain DoppelBrain is a personal memory built from your browsing and AI chats. A lightweight browser extension remembers what you read, and your AI assistants connect via the Model Context Protocol (MCP) so every model already has your context. > DoppelBrain is a personal AI memory that remembers your browsing and AI chats, then connects to ChatGPT, Claude, Cursor, and any MCP client. ## Key pages - [Home](https://www.doppelbrain.ai/): Product overview, how it works, features, personas, and FAQ. - [Connect](https://www.doppelbrain.ai/connect): Step-by-step MCP setup for every supported AI client. - [About](https://www.doppelbrain.ai/about): Mission, privacy posture, and contact. - [Privacy Policy](https://www.doppelbrain.ai/privacy-policy): How DoppelBrain collects, stores, protects, and lets you delete your data. - [Terms and Conditions](https://www.doppelbrain.ai/terms): Terms governing use of the DoppelBrain service. - [Full inlined documentation](https://www.doppelbrain.ai/llms-full.txt): Canonical hero, features, personas, trust points, and all FAQ answers in one file. ## Supported AI clients (via Model Context Protocol) - Claude - ChatGPT / Codex - Cursor - VS Code - Windsurf - Cline - OpenClaw - n8n - Notion - Any other client that speaks MCP ## Data posture - Your data is never used to train any AI model, ours or anyone else's. - DoppelBrain is GDPR compliant. You can export or permanently delete all of your data at any time from the dashboard. - All data is encrypted in transit and at rest. Connections are HTTPS only. - We are pursuing SOC 2 Type II certification. Enterprise-grade security controls are already in place. ## Pricing - DoppelBrain is free during the public Beta. No credit card required. - Paid tiers will be announced before the Beta ends. Beta users will receive a significant discount. ## Contact - Email: hello@doppelbrain.ai - Website: https://www.doppelbrain.ai --- Last updated: 2026-10-29