Nessie

People and teams now produce AI work across many different tools (ChatGPT, Claude, Claude Code, Codex, Cursor, Gemini, and others) as well as meeting and note apps. Each session's history, decisions, and remaining work stays siloed in that tool, so a teammate or agent picking up related work has to rediscover what was already figured out. Today the workaround is manual copy-pasting of context between tools or a Chrome extension, which is tedious and error-prone. This means context scatters instead of compounding, and work gets repeated or restarted from scratch.

Nessie connects to AI tools and local sources (ChatGPT, Claude, Claude Code, Gemini, Cursor, Codex, Obsidian, Granola, Read AI, Gmail, Outlook, Teams, SharePoint, and more) once, backfills all available AI sessions from that source, and keeps new sessions and meetings syncing automatically without copy-pasting. Agents access this history through CLI and MCP to search past conversations, read full transcripts, resume prior sessions, run check-ins, and generate shareable contexts from source conversations. Users can share a single session, an entire repository's sessions, or a whole integration with specific people, teams, or admins, while keeping everything else private. The product is local-first by default, storing data on a user's Mac, with optional Cloud Sync for MCP, teams, multiple devices, and remote agent access, plus a Privacy Mode that prevents Nessie staff from viewing content, and support for on-prem deployment.