# Plain MCP: Use Plain in Slack and Email

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

Connect the Plain MCP server to Maito with one sign-in, and your whole team can use it from Slack or email: “Which threads from enterprise customers are waiting on us?”

Plain is a support platform where your team handles customer threads. Connect the Plain MCP server to Maito once, and everyone on your team can use Plain 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 Plain
-   One connection for the whole team
-   Server by [Plain](https://www.plain.com/)

Updated October 21, 2026

## What you can ask with Plain

Requests to Maito

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

Dana in Slack

Which threads from enterprise customers are waiting on us?

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

Sam by email

Reply to the Bright Labs thread with the fix and mark it done.

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

## How to connect Plain

Open Connections in your workspace and choose Connect next to Plain. You sign in to Plain 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 Plain from then on. Or skip ahead and ask for the work: Maito sends you a link if Plain isn't connected yet.

## Questions

### What is the Plain MCP server URL?

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

### Can I use the Plain 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 Plain?

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

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

No. If a request needs Plain 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 Plain?

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

## Also in Customer support

-   [Intercom Intercom is customer messaging and support: conversations, contacts and help articles.](https://maito.app/integrations/intercom)
-   [Gleap Gleap collects bug reports, feedback and support tickets from your app.](https://maito.app/integrations/gleap)
-   [Gorgias Gorgias is a helpdesk for online stores, with customer tickets from email, chat and social.](https://maito.app/integrations/gorgias)
-   [Help Scout Help Scout holds your customer support conversations and reports.](https://maito.app/integrations/help-scout)
-   [WhatsApp Business WhatsApp Business is where you manage message templates, phone numbers and customer messages.](https://maito.app/integrations/whatsapp-business)
-   [Kustomer Kustomer is a customer service platform with conversations and customer history.](https://maito.app/integrations/kustomer)

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

## Put your AI employee to work.

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

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