# Square MCP: Use Square in Slack and Email

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

Connect the Square MCP server to Maito with one sign-in, and your whole team can use it from Slack or email: “What were total sales at the downtown location last weekend?”

Square handles payments and point of sale, with transaction and merchant data. Connect the Square MCP server to Maito once, and everyone on your team can use Square 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 Square
-   One connection for the whole team
-   Server by [Square, Inc.](https://squareup.com/)

Updated October 21, 2026

## What you can ask with Square

Requests to Maito

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

Dana in Slack

What were total sales at the downtown location last weekend?

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

Sam by email

Find the refund we issued to Jane Park on October 3.

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

## How to connect Square

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

## Questions

### What is the Square MCP server URL?

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

### Can I use the Square 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 Square?

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

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

No. If a request needs Square 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 Square?

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

## Also in Payments and finance

-   [Stripe Stripe handles payments, customers, subscriptions and invoices.](https://maito.app/integrations/stripe)
-   [Ramp Ramp is corporate cards and spend management.](https://maito.app/integrations/ramp)
-   [PayPal PayPal handles payments, invoices and transactions.](https://maito.app/integrations/paypal)
-   [Era Era helps you manage personal finances: accounts, spending, and budgets.](https://maito.app/integrations/era-context)
-   [Paddle Paddle handles billing for software companies: customers, subscriptions, transactions and revenue.](https://maito.app/integrations/paddle)
-   [Baremetrics Baremetrics tracks subscription revenue: MRR, churn and customer metrics.](https://maito.app/integrations/baremetrics)

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

## Put your AI employee to work.

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

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