LeaseOS by Leasecake
Getting Started

Connect Claude, ChatGPT, Gemini, or Grok to LeaseOS

Connect Claude, ChatGPT, Gemini, or Grok to your LeaseOS portfolio and ask about your leases in plain English. The connection uses the LeaseOS Portfolio MCP server. Every provider connects the same way: paste your organization's connection address into the assistant, then approve access by signing in to LeaseOS.

If you connected before the rename, your existing entry named Leasecake keeps working. New setup registers the connector as LeaseOS, or leaseos where a registration name is asked for.

Before you start

You need the connection turned on for your organization and AI assistant access on your LeaseOS role. A LeaseOS admin sets up both. If you do not see Connect Your AI Assistant in the top bar, ask your admin first.

Get your connection address

Each organization has its own connection address, so copy it from inside LeaseOS.

  1. In LeaseOS, click Connect Your AI Assistant beside global search in the top bar.

  2. Copy your organization's connection address. It is your LeaseOS address followed by /mcp/portfolio.

Connect Claude

  1. In Claude, click Add to Claude, or open Customize, go to Connectors, and click Add custom connector.

  2. Paste the connection address. Check the name reads LeaseOS and the address matches yours, then click Add.

  3. Click Connect, sign in to LeaseOS, and click Approve.

  4. In a new chat, turn LeaseOS on under + → Connectors.

On Claude Team or Enterprise, an organization owner can install the connector once with Add for My Claude Team, so members only need to click Connect.

Connect ChatGPT

  1. In ChatGPT, open Plugins, click +, choose Create app, then Create MCP App.

  2. Name it LeaseOS, paste the connection address as the MCP server URL, and choose OAuth.

  3. Click Create, sign in to LeaseOS, and click Approve.

  4. In a new chat, choose LeaseOS from +.

ChatGPT Business, Enterprise, and Edu workspaces need a workspace admin to allow Developer mode and custom connectors first, under Workspace settings → Permissions & roles.

Connect Gemini

  1. In Gemini, go to Settings, then Connected apps, then Custom apps, and click Add a custom app.

  2. Paste the connection address and click Next.

  3. Sign in to LeaseOS and click Approve.

  4. Ask Gemini about your leases, and mention LeaseOS in your first question.

Connect Grok

  1. Go to grok.com/connectors and click New Connector.

  2. Choose Custom and paste the connection address.

  3. Sign in to LeaseOS and click Approve.

  4. Start a chat.

When the connection does not work

LeaseOS says "You are not a member of this organization"

Open LeaseOS in your browser once, then reconnect the assistant.

LeaseOS says "You do not have permission"

Ask a LeaseOS admin to give your role AI assistant access.

The assistant does not use LeaseOS

Check that the LeaseOS connector is turned on for that chat, and mention LeaseOS in your question.

What the assistant can do

The assistant looks up your portfolio and works with reports. It never creates or changes a lease or an accounting record, it acts as you and sees only what you see, and you can disconnect it at any time. The full list of what it can look up is in Connect Your AI Assistant to LeaseOS.

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