Claude + Notion MCP Demo

A small, offline MCP server over a synthetic two-client workspace (Acme / Beta). It shows the part of the job that is easy to get wrong: find the right page, patch one table cell, or refuse if the match is ambiguous.

This is not your live Notion workspace. There is no Anthropic API key and no Notion token in this repo. Connecting the official Notion connector still happens in your Claude Desktop app, on a screen share, with you signed in.

What it demonstrates

1. A mixed workspace: text briefs plus invoice tables for two clients

2. search_pages — “Acme invoices” does not return Beta

3. apply_client_edit — updates INV-104 on Acme only; a vague query like “invoices” is refused so the wrong client is not patched

4. Optional: point Claude Desktop at src.server using claude_desktop_config.example.json

Related MCP server: mcp-sandbox

Run it

py -3 -m pip install -r requirements.txt
py -3 -m pytest tests -q
py -3 -m src.run

src.run searches Acme invoices, sets INV-104 amount to 1500.00, leaves Beta unchanged, and shows the refused ambiguous edit.

Scope of this dummy

• Fixture JSON pages, not production Notion

• Local stdio MCP tools only

• Does not replace the Zoom/Meet walkthrough of Claude Desktop → Settings → Connectors → Notion OAuth

What the $30 call covers

The $30 milestone is: connect the official Notion MCP connector on screen share and confirm Claude can read one of your pages. You keep passwords. An NDA can be signed before the call.

It is not a promise that every client page in a mixed workspace will update correctly in 30 minutes. Reliable find-and-edit across several businesses is a follow-on milestone after we look at 2–3 example pages.