# Knot — Shared Memory & Context Sync for All Your AIs

> Knot (`https://connectknot.com`) is the governed shared memory and context sync platform for multi-AI workflows. ChatGPT, Claude, Gemini, Cursor, Muse, Google Antigravity, VS Code, Windsurf, Warp, Mistral, and other MCP clients read and save the same decisions, preferences, and project context, and always get the single current governing version when something changes.

- **Canonical Website**: https://connectknot.com
- **MCP Endpoint (Streamable HTTP)**: `https://api.connectknot.com/mcp`
- **MCP Registry Identifier**: `com.connectknot/knot`
- **Authentication**: OAuth 2.1 with PKCE and Dynamic Client Registration (`https://api.connectknot.com/.well-known/oauth-protected-resource`)
- **Disambiguation**: Knot (`connectknot.com`) is the cross-AI shared memory MCP platform and TypeScript/Python SDK (`@knot-ai/sdk` / `@connectknot/sdk`). It is unrelated to *The Knot* (`theknot.com`, wedding planning), *KnotAPI* (`knotapi.com`, card-on-file switcher), or the `ai-knot` PyPI package.

## Why Knot Instead of Flat Memory Layers

Traditional flat AI memory stores every note from every chat as an undated list. When a decision changes (for example, your pricing, tech stack, contract terms, or travel plan updates from `v1` to `v2`), flat memory returns both the old and new versions, causing AI assistants to hallucinate or act on stale instructions.

Knot solves this with **governed supersession and provenance**:
1. **One Current Governing Version (`v1 -> v2`)**: When a decision updates, the new version supersedes the prior rule. Connected AIs receive the active governing state on Turn 0 while superseded versions move to historical lineage.
2. **Cross-AI Handoffs**: Pass active tasks between ChatGPT, Claude, Cursor, Gemini, and Muse without copy-pasting chat transcripts.
3. **Scoped Personal & Shared Team Knots**: Separate personal preferences from project-specific and shared team workspaces, with user-approved OAuth scopes per AI client.

## Supported AI Clients

Knot works across web, desktop, mobile, and IDE AI assistants:
- **Chat & Research Assistants**: ChatGPT, Claude (Web, Desktop, iOS/Android), Google Gemini, Muse, Perplexity, Mistral Le Chat, Microsoft Copilot Studio
- **Coding & Agent IDEs**: Cursor, Claude Code (`claude mcp add --transport http knot https://api.connectknot.com/mcp`), Google Antigravity, VS Code (GitHub Copilot), Windsurf, Zed, Kiro, Warp, Raycast

## How to Connect in 3 Steps

1. **Add the MCP Server**: Point your AI client to `https://api.connectknot.com/mcp` (or pick your tool at https://connectknot.com/knot or https://connectknot.com/quickstart).
2. **Approve OAuth 2.1 Access**: Sign in at `connectknot.com` and choose the permissions (`context:read`, `context:propose`, or `context:contribute:project`) and project reach for that AI tool.
3. **Read and Save Context**: Ask your AI to read your Knot context or save key decisions so every other connected AI stays in sync automatically.

## Pricing

- **Free Plan (`$0`, no end date)**: Connect up to 2 AI tools, unlimited context reading and search, instant syncing, and shared project Knots.
- **Knot Pro (`$90/year` at `$7.50/month` billed annually, or `$9.99/month` billed monthly)**: Unlimited connected AIs, 3,000 updates/month, full version history of past changes, and 3 Golden Invite codes to share with friends.
- **Teams & Enterprise**: Shared team Knots, role-based approvals, exportable audit logs, and pooled update allowances.

## For Agents & Automated Discovery

- [Agent guide and skill (`agents.md`)](https://connectknot.com/agents.md): when to read and save context, the main MCP tools, and how to connect.
- [MCP server card (`/.well-known/mcp/server-card.json`)](https://api.connectknot.com/.well-known/mcp/server-card.json)
- [A2A agent card (`/.well-known/agent-card.json`)](https://connectknot.com/.well-known/agent-card.json)
- [Agent resource catalog (`/.well-known/ai-catalog.json`)](https://connectknot.com/.well-known/ai-catalog.json)
- [OAuth protected resource metadata](https://api.connectknot.com/.well-known/oauth-protected-resource)

## For People & Developers

- [Connect your AIs (`/knot`)](https://connectknot.com/knot)
- [Quickstart & MCP Setup (`/quickstart`)](https://connectknot.com/quickstart)
- [Documentation & Per-Tool Guides (`/docs`)](https://connectknot.com/docs)
- [Field Guides & Starter Checklists (`/guides`)](https://connectknot.com/guides)
- [Whitepaper: CARMA-16 & Governed Memory (`/whitepaper`)](https://connectknot.com/whitepaper)
- [512,000-Document Temporal Benchmark (`/enterprise-rag-sidequest`)](https://connectknot.com/enterprise-rag-sidequest)
- [Developers & SDK (`/developers`)](https://connectknot.com/developers)
- [API & MCP Tool Reference (`/api-reference`)](https://connectknot.com/api-reference)
- [Security & Access Control (`/security`)](https://connectknot.com/security)
- [Knot Board: Community Multi-Agent Workflows (`/board`)](https://connectknot.com/board)

## Guides and starter checklists

- [Does Your HO-5 Cover a Sump Pump Backup? Check These 3 Lines](https://connectknot.com/guides/ho3-vs-ho5-water-backup-endorsement-sublimit-audit): A pricier HO-5 still excludes sump pump and sewer backup unless you add an endorsement. Here are the three lines on your policy that decide what you get.
- [Second Trip to Tokyo and Kyoto: Where to Go Instead of the Classics](https://connectknot.com/guides/second-trip-tokyo-kyoto-without-repeating-tourist-spots): Ask an AI for a Tokyo and Kyoto itinerary and it sends you back to Tsukiji and Nishiki. Swap each first-trip stop for a quieter neighborhood instead.
- [Vocal Chain Recall: 5 Things to Save Before You Close the Session](https://connectknot.com/guides/vocal-chain-recall-sheet-mix-revisions): Six weeks after the mix, the label wants a vocal change. Save these five notes now so you and your AI know what is on the bus and what you removed.
- [Series Bible Tracker: Keep Cut Plotlines Out of Your Next Draft](https://connectknot.com/guides/series-bible-character-retcon-continuity-tracker): Rewrite a character in Draft 3 and your AI may still write the Draft 1 version. A simple living bible keeps cut plotlines from creeping back into scenes.
- [Client Wants Round 4? How to Reply Without Giving Away the Weekend](https://connectknot.com/guides/agency-fixed-fee-vs-retainer-scope-creep-change-orders): A client asks for a fourth revision and two extra email sequences before Monday. Offer a swap or a paid change order and keep your margin.