Nessie is the system of record for AI-native knowledge workers.
Nessie ingests all available history from ChatGPT, Claude, Claude Code, Claude Cowork, Codex, OpenCode, Cursor, Antigravity, Gemini, Grok, Grok Bot, Hermes, Manus, Perplexity, and OpenClaw, plus notes from Obsidian and Apple Notes, documents from local folders and SharePoint, email from Gmail and Outlook, messages from Microsoft Teams, meeting notes from Granola, and meeting reports from Read AI, into one place. Then it keeps new conversations synced, lets you chat with your history, and generates structured contexts from your past thinking.
The core idea: your thinking should compound, not evaporate. Nessie turns your AI conversations into structured context you can use and share.
What you can do:
- Ingest all available history from all major AI platforms and keep new conversations synced
- Chat with your entire conversation history across all platforms
- Generate structured contexts (briefs, summaries, project context) from your past conversations
- Browse your conversation history with search and filtering
- Share sessions and contexts directly with another Nessie user on Plus or higher — no team required — or share with team audiences on Team
- Collaborate on shared contexts with Viewer or Editor access, live presence, and synchronized edits
- Create, share, and install reusable agent skills so every agent and teammate stays on the same instructions. See Why manage skills on Nessie?
- Use Cloud Sync to make your library available to MCP clients, teammates, and your other devices