# Rillet MCP: Use Rillet in Slack and Email

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

Connect the Rillet MCP server to Maito with one sign-in, and your whole team can use it from Slack or email: “What was our gross margin last month?”

Rillet is an accounting system with your live general ledger and financials. Connect the Rillet MCP server to Maito once, and everyone on your team can use Rillet 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 Rillet
-   One connection for the whole team
-   Server by [Rillet](https://www.rillet.com/)

Updated October 21, 2026

## What you can ask with Rillet

Requests to Maito

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

Dana in Slack

What was our gross margin last month?

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

Sam by email

Show the general ledger entries for the AWS account in October.

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

## How to connect Rillet

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

## Questions

### What is the Rillet MCP server URL?

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

### Can I use the Rillet 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 Rillet?

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

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

No. If a request needs Rillet 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 Rillet?

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

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-   [Zoho Books Zoho Books is accounting software for invoices, bills, expenses, and bank reconciliation.](https://maito.app/integrations/zoho-books)
-   [Brex Brex runs corporate cards, expenses, and business spend.](https://maito.app/integrations/brex)
-   [Navan Navan handles business travel and expenses: trips, bookings, and spend.](https://maito.app/integrations/navan)
-   [freee freee is Japanese accounting and back-office software for bookkeeping, expenses and HR data.](https://maito.app/integrations/freee)
-   [Spendesk Spendesk holds company spend: cards, expenses and who spent what.](https://maito.app/integrations/spendesk)

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

## Put your AI employee to work.

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

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