Important Limitations
Developer Mode RequiredChatGPT requires “Developer mode” to add custom MCP servers. This has significant limitations:
- Not available on organization accounts in many cases
- May enable other experimental features beyond just MCP
- Limited support from OpenAI for custom MCP servers
Prerequisites
- ChatGPT account (developer mode often unavailable on org accounts)
- Logic MCP server created (Quick Start guide)
- Server URL from Logic organization settings
Configuration
Enabling Developer Mode
- Open ChatGPT Settings
- Navigate to “Apps”
- Select “Advanced settings”
- Enable “Developer mode”
Enabling developer mode may activate other experimental features beyond MCP
support. Review what this means for your account before proceeding.
Adding Your Logic MCP Server
Once developer mode is enabled:
- In the Apps section, select “Create app”
- Configure your Logic MCP integration:
- Name: Enter a descriptive name for your Logic integration
- MCP URL: Paste the server URL from your Logic organization settings
- Authentication: Select “No Auth”
Your Logic MCP server is now configured in ChatGPT.
Using Logic Documents
Enabling Your Logic Integration
To use Logic documents in a conversation:
- Start a new chat or open an existing conversation
- Click the ”+” button in the chat interface
- Under “More”, select your Logic MCP integration
- Verify the integration is active:
- The integration name should appear in the chat text box
- The text box will change to orange, indicating developer mode is active
Once enabled, ChatGPT can access and execute your Logic documents.
Testing Your Connection
Try asking ChatGPT to use one of your Logic documents:
- “What Logic documents are available?”
- “Run the [document name] Logic document”
ChatGPT will execute the document and return the results in the conversation.
Troubleshooting
Cannot find developer mode?
- Developer mode may not be available on your account type
- Organization/business accounts often have this feature restricted
- Try using a personal ChatGPT account if available
Integration not appearing after creation?
- Refresh the ChatGPT page
- Verify developer mode is still enabled
- Check that the MCP URL was copied correctly
Next Steps