Superhuman MCP Server

Official Superhuman Mail MCP server. Lets Claude, ChatGPT, and other MCP clients search email, draft replies, manage calendar events, and triage your inbox.

Email & Outbound by Superhuman OAuth2 active

Connect (Remote Server) Docs

Overview

The Superhuman Mail MCP Server is the official remote MCP endpoint from Superhuman that connects AI assistants directly to your Superhuman inbox and calendar. Once authenticated, an AI client can search threads, draft replies in your personal voice, schedule and send messages, manage events, and use Superhuman-specific features like Split Inbox, Smart Send, Read Status, and Ask AI from inside Claude, ChatGPT, or any MCP-compatible client.

The server exposes tools for both structured email search (filters like From, To, Subject, Labels, date) and natural-language semantic queries across email plus calendar. Drafts created via the MCP appear in the user's Superhuman drafts folder and automatically apply personalization settings, so generated replies match the user's tone and style. Calendar tools let agents check availability, create events, and update existing meetings.

The server is provider-hosted at https://mcp.mail.superhuman.com/mcp and authenticates via OAuth. It requires a Superhuman Mail account on the Business or Enterprise plan with Ask AI enabled. It is listed in the Claude Connector Directory and the ChatGPT App Store, and can be added to any MCP client that supports remote HTTP servers.

Tools

Tool	Description
`list_threads`	Search email threads using structured filters (From, To, Subject, Labels, Split, date range).
`query_email_and_calendar`	Run a natural-language semantic query across email and calendar to answer questions about your inbox and meetings.
`send_draft`	Send an email with From, To, Cc, Bcc, Subject, and HTML body. Supports Smart Send, Scheduled Send, and Undo Send.
`update_personalization`	Update writing style, event creation preferences, and facts used by Superhuman to draft emails and calendar events.
`Thread actions`	Update labels, set reminders, star/unstar, trash, mark done, and mark read on email threads.
`Calendar tools`	Create or update calendar events, check availability, and manage scheduling.
`Read status and undo`	Get read statuses for sent emails, undo send, and unsubscribe from senders.

Setup Guide

Prerequisites

Active Superhuman Mail account with Ask AI enabled
Business or Enterprise plan (not available on Starter)
Superhuman web app running in Google Chrome
An MCP-compatible AI client (Claude Code, Claude Desktop, ChatGPT, Cursor, etc.)

Server URL

https://mcp.mail.superhuman.com/mcp

Authentication is via OAuth in the browser after first connection.

Claude Code (CLI)

claude mcp add --transport http superhuman-mail https://mcp.mail.superhuman.com/mcp

Then run /mcp, select superhuman-mail, and choose Authenticate to complete the OAuth flow.

Claude Desktop

{
  "mcpServers": {
    "Superhuman Mail": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.mail.superhuman.com/mcp"]
    }
  }
}

Or install directly from the Claude Connector Directory: search for "Superhuman Mail" under Settings, Connectors, Browse Connectors.

Cursor

{
  "mcpServers": {
    "superhuman-mail": {
      "url": "https://mcp.mail.superhuman.com/mcp",
      "headers": {}
    }
  }
}

ChatGPT

Open Settings, Personalization, Apps, Add More, then search for "Superhuman Mail" and click Connect. Requires Developer Mode access.

Other MCP Clients

{
  "superhuman-mail": {
    "type": "remote",
    "url": "https://mcp.mail.superhuman.com/mcp",
    "enabled": true
  }
}

Use Cases

Daily inbox triage: scan unread threads from the last 24 hours and flag what needs a response
Voice-matched reply drafting: generate replies that adopt the user's tone and personalization settings, saved straight to Superhuman drafts
Meeting prep: pull relevant email and calendar context for upcoming meetings into a single brief
Follow-up automation: after a meeting, draft and schedule follow-up emails referencing action items
Cross-mailbox search: ask natural-language questions across email and calendar (for example, "when did I last hear from this vendor and what did we agree on")

Example Prompts

"Scan unread emails in my inbox from the last 24 hours and flag what matters most."
"Draft a reply to the last email from Alex confirming Thursday at 2pm and propose a 30 minute Zoom."
"Summarize this week's newsletters from my Split Inbox into a single digest."
"Find every thread with Acme Corp in the last 60 days and tell me where the deal stands."
"Schedule a 45 minute meeting with priya@example.com next week, then send a confirmation email in my voice."

Pros

Official, provider-hosted server maintained by Superhuman with OAuth authentication
Exposes Superhuman-native features (Split Inbox, Smart Send, Read Status, Ask AI) not available in generic Gmail or IMAP MCP servers
Listed in both the Claude Connector Directory and ChatGPT App Store for one-click install
Combined email plus calendar tools, including semantic natural-language queries

Limitations

Requires Superhuman Business or Enterprise plan; not available on Starter
Single email account per connection (multi-account support not yet available)
No attachment support yet and no dedicated MCP audit logging

Alternatives

Gmail MCP server for direct Gmail access without Superhuman
Microsoft 365 / Outlook MCP for Outlook mail and calendar
Native Google Workspace MCP connectors for users not on Superhuman