Nessie
A YC-backed memory-portability layer that ingests your history from every AI tool (ChatGPT, Claude, Gemini, Perplexity, Claude Code, Codex, Cursor, OpenClaw, Obsidian) and exposes it to any agent over MCP — so your context follows you across tools instead of dying in each session.
What it does
Nessie's pitch is "make your thinking legible to AI." The most important thinking at a company increasingly happens inside AI conversations — strategy in Claude, research in ChatGPT, building in Claude Code — but that thinking is siloed: you re-explain yourself to every new session, teammates' breakthroughs are invisible, and agents rediscover the same patterns only to forget them between runs. Nessie backfills all available history from each connected source, keeps new conversations synced, and structures them into reusable contexts for you, your team, and your agents. It reports 1,000,000+ AI conversations synced. Source: nessielabs.com, https://nessielabs.com/, 2026-06-12
| Layer | What it provides |
|---|---|
| Ingestion | One-time connect → backfills history; local sessions/workspaces ingested; new conversations sync automatically. Local sources stay on your Mac. |
| Synthesis | Groups conversations into structured "contexts" (e.g. a "Pricing decisions" context synthesized from 11 threads across 3 tools). |
| Agent access | MCP server + OpenClaw plugin + a CLI skill (/nessie …) so agents search transcripts, read full conversations, and generate contexts from the command line. |
Sources and surfaces
Connectors span ChatGPT, Claude, Gemini, Perplexity, Claude Code, Codex, Cursor, Claude Cowork, OpenClaw, and Obsidian. Access is over an MCP server (works in Claude, ChatGPT, or any MCP-compatible client) and an OpenClaw plugin. Source: nessielabs.com, https://nessielabs.com/, 2026-06-12
# OpenClaw plugin (paste into OpenClaw; requires Cloud Sync enabled)
openclaw plugins install @nessielabs/nessie-openclaw
Source: nessielabs.com/docs/openclaw-plugin-setup, 2026-06-12
The public OpenClaw plugin repo confirms the implementation shape: it installs a native OpenClaw plugin, runs an email-code or API-key setup flow, and writes mcp.servers.nessie into OpenClaw config so the hosted Nessie MCP server at https://mcp.nessielabs.com/mcp is discoverable by the OpenClaw MCP client. As of 2026-07-04 the repo has latest tag v0.1.13, 3 stars, 1 fork, no open issues, and no SPDX-identifiable license in the GitHub API. Source: GitHub nessielabs/nessie-openclaw README/API/tags, 2026-07-04
Where it fits Kevin's stack
Nessie is a hosted, cross-tool answer to the same problem Knowledge Brain System and Kevin's own kevin-wiki + QMD - Local Wiki Search Engine solve locally: agents that forget everything between runs. The wiki is a compiled, git-versioned brain searched on-device; Nessie is a sync layer that vacuums up raw transcripts from many vendors and re-serves them over MCP. The two are complementary — Nessie is strongest at capturing scattered conversation history, the wiki is strongest at compiled, cited truth. It sits alongside Agent Memory Patterns and Neo4j Agent Memory in the "memory is the moat" cluster.
Garry Tan endorsed it as "the best way to get all your existing context, memory and history from ChatGPT, Perplexity, and Gemini into all the other places you have memory, and also get it into OpenClaw / Hermes Agent," calling the OpenClaw and MCP servers "ace." Source: X/@garrytan, 2026-06-11
Timeline
- 2026-07-04 | Source-reviewed the OpenClaw plugin repo. Current tag is
v0.1.13; README confirms the plugin writes the hosted Nessie MCP server into OpenClaw config after OTP or API-key setup. Source: GitHubnessielabs/nessie-openclaw, 2026-07-04 - 2026-06-11 | Garry Tan endorsed Nessie for cross-tool memory/context portability into OpenClaw/Hermes, praising its OpenClaw + MCP servers. 1,140 likes, 1,795 bookmarks. Source: X/@garrytan, 2026-06-11
- 2026-06-12 | Page created from X-bookmark absorption (
2064947145652994510); product detail sourced from nessielabs.com and the OpenClaw plugin docs. Source: x-bookmark-absorb, 2026-06-12