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Home/Servers/The Margin

The Margin

by com.themarginapp

Notes, boards, habits, money and family life in one place your AI can read and act on.

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL
https://mcp.themarginapp.com/mcp
Provider
Add in Claude

Claude opens with the name and URL filled in. You still confirm it there.

Claude Code
claude mcp add --transport http com.themarginapp-the-margin https://mcp.themarginapp.com/mcp

Run in a terminal.

Claude Desktop
{
  "mcpServers": {
    "com.themarginapp-the-margin": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.themarginapp.com/mcp"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

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  • thoroughness-scoringScore every decision point with a Thoroughness Rating (1-10). AI makes the marginal cost of doing things properly near-zero — pick the higher-rated option every time. Includes scope checks to distingu

Notes, boards, habits, money and family life in one place your AI can read and act on.

The Margin keeps boards, notes, checklists, habits, money, meals, chores and chat in one app. A household or a team shares what it wants to share, and each person keeps a private side.

  • It works with no signal. A full copy of your data lives on the device and catches up when it is back online.
  • It has an assistant built in. Margin Intelligence can read across everything you keep there and act on it.
  • It works with the assistant you already use. Claude, ChatGPT, Grok, Cursor and any other MCP client can connect to your workspace, and each thing they add is marked with who added it.
  • Your data is yours. Export all of it whenever you like.

It runs in the browser and installs to a phone's home screen. Native apps for iPhone and Android are coming soon.

Connect your AI

The server is at https://mcp.themarginapp.com/mcp and speaks MCP over Streamable HTTP. Sign-in is OAuth 2.1, so most clients only need the URL.

ClientHow
ClaudeSettings → Connectors → Add custom connector, paste the URL
ChatGPTSettings → Apps & Connectors → Create, paste the URL
GrokSettings → Connectors → Add custom, paste the URL
Claude Codeclaude mcp add --transport http margin https://mcp.themarginapp.com/mcp
Cursor and other JSON-config clientsSee connector/examples

Menu names move around between releases of each client. If one of these is out of date, tell us.

Try it without an account

Point a client at https://mcp.themarginapp.com/sandbox/mcp with no credential. The server makes a demo household for that connection and deletes it about an hour after your last call.

claude mcp add --transport http margin-sandbox https://mcp.themarginapp.com/sandbox/mcp

What an assistant can do

271 tools. 112 only read, 82 add or change, 77 can remove or overwrite. Every one is scoped to the person who signed in and the workspaces they chose.

The full list is in connector/TOOLS.md, with input schemas in connector/tools.json. The guide is at themarginapp.com/docs/agents-and-mcp.

Report a problem or ask for something

  • Something is broken: open a bug report.
  • You want something added: open a feature request.
  • A question, or something to show: Discussions.
  • A security problem: please do not open an issue. See SECURITY.md.
  • Your account or billing: email [email protected]. Please keep personal details out of public issues.

What is in this repository

PathWhat
server.jsonThe MCP Registry entry
connector/The tool catalog, client configs and example prompts
ROADMAP.mdWhat we are working on next
Issues and DiscussionsWhere bugs, requests and questions go

The Margin's application code is not open source and is not in this repository. The files here are MIT licensed so you can copy the configs and examples freely.

How do I install The Margin?
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does The Margin need an API key?
No required environment variable is listed on this record.
What transport does The Margin use?
The Margin is reached over HTTP.
When was The Margin last checked?
Last checked 2026-10-16. Notes, boards, habits, money and family life in one place your AI can read and act on.

No tool list yet. Remote servers get one after the first health check.

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