Superhuman

About

This is an MCP connector that gives the Sazabi agent tools from Superhuman's hosted MCP server at https://mcp.mail.superhuman.com/mcp. Superhuman authenticates via OAuth with dynamic client registration — you authorize once in the browser and Sazabi refreshes the token thereafter. Write operations (drafting and sending) are governed by the per-connection read-only toggle.

What the agent can do:

• Search and browse email threads and contacts
• Read full email conversations
• Draft and send email replies
• Triage and organize inbox items

Prerequisites

• An active Superhuman Mail account
• Permission to authorize third-party OAuth applications

Set up in the dashboard

Configure connectors in the dashboard under Settings > MCP connectors.

Set up with the CLI

You can also connect Superhuman with the Sazabi CLI (installed and authenticated — see sazabi mcp-connectors reference).

Superhuman authenticates over OAuth, so the CLI opens a browser to complete authorization:

sazabi mcp-connectors connect superhuman

Add --read-only to restrict the connector to read-only tools, or --project-id <project> to target a specific project. In --json mode the command prints an authorization URL to open, then polls until the connection completes. Confirm the result with sazabi mcp-connectors list.

Verify

Open the connector's connection page under Settings > MCP connectors and confirm Sazabi lists the tools it discovered. Then, in a thread, ask the agent to use one of those tools and confirm it runs. If no tools appear, confirm the connection is authorized.

Troubleshooting

No tools discovered — Disconnect and reconnect from Settings > MCP connectors to restart the OAuth flow.

Connection shows needs attention — The authorization may have expired or been revoked; reconnect from Settings > MCP connectors.

Further reading