You can connect Kolleno to ChatGPT, Claude, or any other MCP client. Each Kolleno server has its own MCP URL, so start by finding yours.
Find your MCP URL
In Kolleno, go to Personal settings > MCP Connections (click your name at the bottom left). Copy the MCP URL.
Most accounts use https://server.kolleno.com/mcp. Accounts hosted in another region, such as the US, or on a dedicated server have a different URL. Always use the URL in your own settings. It sends requests to the server that holds your company's data.
Connect ChatGPT
If your URL is https://server.kolleno.com/mcp
Use the Kolleno plugin from the ChatGPT plugin directory:
Open Kolleno in ChatGPT, or open Plugins in ChatGPT and search for "Kolleno".
Add the plugin, then sign in to Kolleno when ChatGPT asks.
If your URL is different
The Kolleno plugin in the ChatGPT directory connects only to https://server.kolleno.com. It cannot find accounts on other servers. Add your own URL as a custom MCP server instead:
In ChatGPT, open Plugins and click the + button.
Select Add custom MCP server.
Enter "Kolleno" as the name.
Under Connection, paste your MCP URL.
Under Authentication, select OAuth. You do not need a client ID or a client secret.
Read the risk warning, select I understand and want to continue, then select Create as a plugin.
Your ChatGPT workspace settings can block plugins and custom MCP servers. If you cannot add Kolleno, ask your ChatGPT workspace admin.
Connect Claude or another MCP client
For Claude, follow Connect Kolleno MCP to Claude. For any other MCP client, paste your MCP URL into the client during setup.
Authorize access
When the client opens the authorization page, log in to Kolleno (if needed), review the permissions, and choose which access levels to grant. Read access is always included; write and delete are optional. Then click Authorize. After this, the client can access your allowed Kolleno data with the MCP tools you approved.
Where your data goes
Your Kolleno data stays on the server that hosts your account. When a tool runs, Kolleno sends the result to the AI client you connected, such as ChatGPT or Claude. The AI provider's own terms and data settings apply to that result.
If setup fails
If the authorization page cannot find your account, or shows no companies, your account is probably on a different server. Use the MCP URL from your own settings.
Also check that you used the full URL, that your browser is logged in to the correct Kolleno account, and that your company access is active.