Connect Claude, ChatGPT or Cursor to your kaddy

Your Kaddy address

Every tool uses this address. It is also in Kaddy settings, under AI tools.

https://connect.kaddy.diy/mcp

After you add it, the tool asks you to sign in. Use the email that owns your kaddy, and choose Allow.

Connect Claude

Fastest: add a custom connector in Customize → Connectors, and choose Register automatically if asked.

1. Open Customize → Connectors, and choose + Add → Add custom connector.
2. Name it Kaddy, paste your Kaddy address, and choose Continue.
3. When Claude asks how it identifies itself, choose Register automatically, then Add.
4. Choose Connect, sign in with the email that owns your kaddy, and choose Allow.
5. In a chat, turn Kaddy on under + → Connectors.

The Free plan allows one custom connector.

On a Team or Enterprise plan, an owner adds it for everyone under Organization settings → Connectors.

Connect Claude Code

Fastest: run this command in a terminal.

claude mcp add --transport http kaddy https://connect.kaddy.diy/mcp

1. Run the command in a terminal.
2. In Claude Code, type /mcp and choose kaddy.
3. In the browser that opens, sign in with the email that owns your kaddy, and choose Allow.

Add --scope user to the command to use Kaddy in every project, not just this one.

Connect ChatGPT

Fastest: in Plugins, choose + → Add custom MCP server, paste your Kaddy address, and choose OAuth.

1. On the web, open Plugins and choose + → Add custom MCP server.
2. Name it Kaddy, paste your Kaddy address, and choose OAuth.
3. Accept the warning and create it.
4. In a chat, type @, choose Kaddy, sign in with the email that owns your kaddy, and choose Allow.

You need a paid plan with Developer mode turned on in Settings.

Connect Codex

Fastest: run this command in a terminal. Codex then asks you to sign in.

codex mcp add kaddy --url https://connect.kaddy.diy/mcp

1. Run the command in a terminal.
2. In the browser that opens, sign in with the email that owns your kaddy, and choose Allow.

The IDE extension and desktop app share this setting. To add Kaddy there, open Settings → MCP servers → Add server.

To sign in again, run codex mcp login kaddy.

Connect Cursor

Fastest: choose Add to Cursor, then Install.

1. Choose Add to Cursor, then Install when Cursor asks.
2. Or add the entry to mcp.json, in your project's .cursor folder or in ~/.cursor for every project.
3. In Customize, find Kaddy under MCP servers, sign in with the email that owns your kaddy, and choose Allow.

{
  "mcpServers": {
    "kaddy": {
      "url": "https://connect.kaddy.diy/mcp"
    }
  }
}

Connect Grok

Fastest: on grok.com, open Connectors, choose New Connector → Custom, and paste your Kaddy address.

1. On grok.com, open Connectors and choose New Connector → Custom.
2. Paste your Kaddy address as the server URL, and continue.
3. Sign in with the email that owns your kaddy, and choose Allow.
4. Or run the command in the Grok Build command line, which asks you to sign in on first use.

grok mcp add --transport http kaddy https://connect.kaddy.diy/mcp

On Business and Enterprise plans, a team admin adds the connector first.

Connect Antigravity

Fastest: add this entry to mcp_config.json, then choose Authenticate.

{
  "mcpServers": {
    "kaddy": {
      "serverUrl": "https://connect.kaddy.diy/mcp"
    }
  }
}

1. Open mcp_config.json. In the IDE, use the … menu on the agent panel → MCP Servers → Manage MCP Servers → View raw config. In Antigravity 2.0, the file is in ~/.gemini/config.
2. Add the entry and save the file.
3. In Settings → Customizations, choose Authenticate next to Kaddy, sign in with the email that owns your kaddy, and choose Allow.
4. Copy the code that Antigravity's page shows, paste it into the settings panel, and choose Submit.

What a connected tool can do

A connected tool works in your kaddy as you. It can:

• See your apps, and read their files, records and memory.
• Create apps, and change their files, records and memory.
• Archive apps, and bring them back.
• Schedule unattended runs that use your allowance.

It cannot:

• Change your account, your plan, or who an app is shared with.
• Delete an app.
• Approve an action that is waiting for you.

Actions that need your approval still wait for you in Chat.

Disconnecting a tool

In Kaddy settings, open AI tools and choose Disconnect next to the tool. Signing out of Kaddy does not disconnect anything.

If a tool will not connect

• Sign in with the email that owns your kaddy. Another email reaches another kaddy, or none.
• Only the owner can connect a tool. Being an editor or viewer of someone's app is not enough.
• Remove the Kaddy connection in your tool and add it again.

Where these steps come from

Steps checked between October 5, 2026 and October 6, 2026 against each tool's own instructions: Claude, Claude Code, OpenAI, ChatGPT help, Codex, Cursor install links, Cursor, Grok connectors, Grok Build and Antigravity. If a menu has moved, the tool's own instructions are right.