Connect ChatGPT Desktop

You only need:

• The Celoxis MCP URL
• Your access token

You do not need Developer mode, Node.js, or environment variables.

1. Add the Celoxis MCP server
   1. Open ChatGPT Desktop.
   2. Open Settings.
   3. Navigate to Integrations → Plugins.
   4. Open the MCPs tab.
   5. Click Add → Add MCP Server.

   The form title should be Connect to a Custom MCP.

   

   The form opens with Type set to STDIO. That is not the Celoxis path. Do not keep STDIO selected. Celoxis MCP is a remote HTTPS server.

2. Configure the connection

   Field	Value
   Name	Celoxis MCP
   Type	Streamable HTTP
   URL	Your Celoxis MCP URL
   Header Key	Authorization
   Header Value	<access-token>

   

   Important:

   • Do not keep STDIO selected
   • Leave Bearer token env var empty
   • Leave Headers from environment variables empty
   • Ensure there is exactly one space after Bearer

   Click Save.

3. Verify the connection
   1. Completely close ChatGPT Desktop.
   2. Reopen the application.
   3. Start a new conversation.
   4. Ask: Who am I in Celoxis?

   The returned user should match the owner of the access token. If it doesn't, you are probably using the wrong token.

See also Test the Integration and Troubleshooting.