# Resend MCP: Use Resend in Slack and Email

Source: https://maito.app/integrations/resend

Connect the Resend MCP server to Maito with one sign-in, and your whole team can use it from Slack or email: “How many password reset emails bounced this week?”

Resend sends transactional and marketing email for developers. Connect the Resend MCP server to Maito once, and everyone on your team can use Resend from Slack, by email, or from Claude, ChatGPT, Cursor, Codex, Grok or Muse. Nobody else has to sign in.

-   Connects in one click
-   Sign in with Resend
-   One connection for the whole team
-   Server by [Resend](https://resend.com/)

Updated October 21, 2026

## What you can ask with Resend

Requests to Maito

![Dana](https://maito.app/marketing-avatars/dana.webp)

Dana in Slack

How many password reset emails bounced this week?

![Sam](https://maito.app/marketing-avatars/sam.webp)

Sam by email

Send a test of the new welcome email to me.

Maito uses Resend to do the work and replies where you asked.

## How to connect Resend

Open Connections in your workspace and choose Connect next to Resend. You sign in to Resend in a new tab, and that's the whole setup. Name the account and choose Workspace under who can use it. That's the only time anyone signs in: your whole team, shared chats and Loops can use Resend from then on. Or skip ahead and ask for the work: Maito sends you a link if Resend isn't connected yet.

## Questions

### What is the Resend MCP server URL?

Resend publishes it at https://mcp.resend.com/, and it signs in with OAuth, so there's no key to copy.

### Can I use the Resend MCP server from Slack?

Yes. Connect it to Maito once, then mention Maito in any Slack channel or send it a direct message. The same connection works by email and from Claude, ChatGPT, Cursor, Codex, Grok or Muse.

### Does everyone on my team have to connect Resend?

No. One person connects it once and chooses Workspace. Then everyone in the workspace, shared chats and Loops can use Resend, without signing in themselves. Choose Only me instead to keep it to your own chats.

### Do I have to connect Resend before I ask?

No. If a request needs Resend and it isn't connected yet, your agent sends you a link. Connect it, and the work picks up where it stopped.

### Can I limit what Maito does in Resend?

Yes. After you connect, turn off any Resend tools you don't want Maito to use, such as the ones that change data. Tools Resend adds later stay off until you turn them on.

## Also in Developer tools

-   [Supabase Supabase is a Postgres database with authentication and storage.](https://maito.app/integrations/supabase)
-   [GitHub GitHub hosts your code: repositories, pull requests, issues and Actions.](https://maito.app/integrations/github)
-   [GitLab GitLab hosts your code: projects, issues, merge requests and CI/CD.](https://maito.app/integrations/gitlab)
-   [Lovable Lovable builds web apps from prompts, then lets you inspect and deploy them.](https://maito.app/integrations/lovable)
-   [Postman Postman holds your API collections, environments and docs.](https://maito.app/integrations/postman)
-   [Context7 Context7 has current documentation for popular code libraries.](https://maito.app/integrations/context7)

[See all integrations](https://maito.app/integrations)

## Put your AI employee to work.

Set it up in minutes. Connect Resend, then hand Maito the first job.

[Put Maito to work](https://maito.app/login?returnTo=%2Fintegrations%2Fresend)[Book a demo](https://cal.com/ddubovetzky/chat-with-the-founder)