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Notion agents can use the Langmail MCP server as a custom MCP connection.

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Prerequisites

  • A Langmail account — sign up at app.langmail.me.
  • A Notion workspace with Notion AI. Custom MCP servers must be enabled by a workspace owner or admin.

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Connect

1

Enable custom MCP servers (admin, once)

A workspace owner or admin goes to Settings → Connections, opens the Manage tab, and toggles on Enable custom MCP servers.
2

Add the Langmail connection

In your agent’s configuration, open Tools & Access and choose Add connection → Custom MCP server. Enter the URL:
3

Authorize access

Notion starts the authorization flow: sign in to your Langmail account and approve the consent screen.
Once connected, the Langmail tools are available to the agent like any pre-configured connection.

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Test it

Ask the agent:
Prompt
It calls search_emails with { "mailbox": "Inbox", "limit": 5 } and answers from the result.

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Ending access

Remove the connection from the agent’s Tools & Access settings. Removing it discards its tokens; without the refresh token, access lapses when the current access token expires.

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Next steps

Search and triage email

Real prompts and the tool calls they produce.

How authorization works

What happens between “add connection” and “connected”.