Notion

Notion is where many people keep years of work: recipes, client notes, team decisions, links, project plans, internal handbooks. The official connector — maintained by Notion Labs — implements an "MCP server for the Notion API" and exposes 22 tools covering data sources (databases), pages, comments, search, and content-to-Markdown conversion.

With this connector, the agent reads your workspace directly (with your permission) and answers from your knowledge. Ask "what did we decide with client X last month?" and it goes to the right doc. Ask "add a comment on the Getting Started page" and it writes it.

What you can ask

• "Read my '2026 Meetings' database and summarize the 3 most important decisions from March."
• "Create a new page inside 'Recipes' titled 'Lemon Pasta' with this ingredient list and steps."
• "Search my workspace for any mention of 'pricing' and bring me the relevant paragraphs."

Official note from the repo: "While we limit the scope of Notion API's exposed (for example, you will not be able to delete databases via MCP), there is a non-zero risk to workspace data by exposing it to LLMs." Share only what you need the agent to see.

What token you need

You need a Notion Internal Integration, which generates a secret_xxx-style token.

1. Go to notion.so/profile/integrations.
2. Click "+ New integration". Name it something like "Terminal Sync — Claude". Capabilities: leave the defaults (Read content, Update content, Insert content) or adjust to taste.
3. Save and copy the "Internal Integration Secret".
4. Important — Notion requires you to explicitly share each page or database with the integration. Two ways: (a) in your integration's Access tab pick pages/databases; (b) per page, open the "..." menu → Connect to integration → pick yours. What you don't share, it can't see.
5. Paste the token when the Lab asks for NOTION_API_KEY. Encrypted in your Keychain.

If you share only one parent page, the agent gets all its children. If you want tighter scope, share only specific databases.