Launch Claude Desktop and sign in with your company email.
Claude requires you to sign in at least once with an email or enterprise SSO. This account will NOT be used after this process is complete. You will instead be using Sphinx’s private backend, which maintains stricter security standards.
2
Enable Developer Mode
From the application menu, select Help → Troubleshooting → Enable Developer Mode.
Windows users
On Windows, the Help menu is located in the top-left corner of the Claude Desktop window. Click the menu button, then select Help → Troubleshooting → Enable Developer Mode.
Enable Developer Mode from the Help menu in Claude Desktop for Windows
Confirm the warning when prompted. Claude Desktop restarts and adds a Developer menu to the application menu bar.
If the Developer menu is already visible, Developer Mode is enabled and you can continue to the next step.
Click Test Connection.Continue only after Claude Desktop confirms that the connection was successful.
7
Restart with the gateway
Restart Claude Desktop. When prompted to choose how to continue, select Continue with Gateway.
After you log in with the gateway, your Claude Desktop application will no longer send data directly to Anthropic. All AI usage will instead go through Sphinx’s secure API gateway.
Start a new chat and send a simple prompt, such as:
Reply with: Gateway connection successful.
If Claude responds, Claude Desktop can reach AI models through the gateway.
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