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Ask your books from Claude and ChatGPT

Connect Reven to your AI assistant and ask about reports, invoices, bank transactions and sales tax in plain language. You choose what it can see, and it previews every change before anything is applied.

Connect an assistant Contact us

MCP serverhttps://mcp.reven.co/mcp

What you can ask

  • What was our revenue last month?
  • Which invoices are overdue, and who owes us the most?
  • Where do we have nexus but no registration?
  • Show uncategorized bank transactions from last week.
  • Is September ready to close?
  • Which integrations failed to sync?

You stay in control

Your role applies
The assistant has the same permissions you have in each organization. Tools your role cannot use are hidden or refused.
You choose the organizations
It sees only the organizations you select when you connect, and only ones you belong to. Each question is about one organization at a time.
Reading is the default
"Make changes" is not ticked when you connect. Without it, the connection can only read. The read-only address can never make a change.
Every change starts as a preview
A preview changes nothing. It shows the exact accounts, amounts and any warnings. It can be applied only with a single-use confirmation from that preview, valid for 10 minutes. The approval step is your AI app's tool prompt. Reven does not add a second confirmation of its own.
Changes have limits
Up to 50 rows per change, and up to 30 changes and 200 rows per hour for each connection. Closed periods stay closed.
Sensitive data stays back
Contact details and bank memos are returned only when asked for. Payroll appears as group totals only, and groups of fewer than 3 people are combined or withheld.

Your AI app may offer an "always allow" option for tools. Keep it off for Reven's change tools, so you review each preview yourself.

Connect an assistant

You need a Reven account with a verified email address that belongs to at least one organization. Custom connectors depend on your Claude or ChatGPT plan.

Claude

  1. Open Customize, then Connectors, and choose Add custom connector.
  2. Name it Reven and paste the server address below.
  3. Choose Connect, sign in to Reven, and pick the organizations and permissions.
https://mcp.reven.co/mcp

Claude Code

  1. Run the command below in your terminal.
  2. Start Claude Code, type /mcp, select reven and choose Authenticate.
  3. Sign in to Reven, and pick the organizations and permissions.
claude mcp add --transport http reven https://mcp.reven.co/mcp

ChatGPT

  1. In Settings, open Apps & Connectors, then Advanced settings, and turn on Developer mode.
  2. Choose Create, name it Reven, paste the address below and select OAuth.
  3. Choose Connect, sign in to Reven, and pick the organizations and permissions.
https://mcp.reven.co/mcp

Want an assistant that can never change anything? Connect this address instead: https://mcp.reven.co/mcp/readonly. In Claude Code, use it in the command above in place of the full address.

Good to know

Disconnecting
Open Account settings, then Connected apps, in Reven and choose Revoke access. Removing the connector inside Claude or ChatGPT is not a substitute. The same page shows each app's recent activity.
Undoing a change
Many changes can be undone, some only for a limited time. A few cannot, such as voiding a journal entry. The preview tells you before you approve.
What the AI provider sees
What the assistant reads travels to the AI service you connected, as it does for anything you ask it about. Connect only organizations you are comfortable sharing.
Supported assistants
Claude, Claude Code and ChatGPT. Consolidated views are not supported, so ask about a member organization instead.
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