Connect Flowgear MCP to ChatGPT

This document describes the steps to connect a Flowgear MCP Server to ChatGPT.

Requirements

  • ChatGPT plan with Custom MCP Connectors (MCP) - Custom connectors are available to Pro users and to Business, Enterprise, Edu workspaces. ChatGPT Plus only supports custom connectors on ChatGPT Web. Some connectors are unavailable in the EEA, Switzerland, and the UK. See more information here: Connectors in ChatGPT
  • ChatGPT plan with Developer Mode - Available in beta to Pro and Plus accounts on the web.

Steps

  1. Copy and verify the MCP Server URL - In the Flowgear Console, open MCP from the main navigation. In the Workflow MCP section, choose the Environment first, then copy the Server URL and Recommended name together. Both belong to the selected Environment. Open the Server URL, https://<environment-hostname>/mcp, in a browser and confirm that Flowgear displays its Workflow MCP server guidance. If it does not, see how to Verify the MCP Endpoint before you continue.

  2. Sign in to ChatGPT.

  3. Enable Developer Mode - Navigate to the settings page by clicking on your profile icon and selecting Settings from the dropdown menu. Once there, click on the Apps section in the sidebar. Then, click on Advanced settings. Ensure that Developer mode is enabled.

  4. Download the Flowgear icon to be used when creating the connector: Open Flowgear Icon (Optional)

  5. Create the Flowgear MCP Connector - Navigate to the settings page by clicking on your profile icon and selecting Settings from the dropdown menu. Once there, click on the Apps section in the sidebar. Then, click the Create app button. Enter the Recommended name you copied in Step 1 as the name, and optionally add an icon and description. The name is a recommendation, and you can choose a different one, but the recommended name keeps each Flowgear connector distinguishable. For the MCP Server URL, enter the Server URL you copied in Step 1. It has the following structure: https://<environment-hostname>/mcp. Ensure that OAuth is selected for the Authentication. Then, tick that you trust this application, and click Create.

  6. Connect the MCP server (Complete Authentication) - Follow the authentication prompts provided by the server.

  7. Open a new chat. Connect the MCP server in this chat by clicking the + button, then More, and clicking the newly connected MCP server (based on the name provided in Step 5). This is only possible if Developer Mode is enabled.

Now, you should have successfully connected ChatGPT to your remote Flowgear MCP Server, and can explore its capabilities in your conversations. For ChatGPT, you may need to explore different prompting techniques to call the correct tools. You can choose to remember the approval or denial choice for a given tool for a conversation, which means it will apply that choice for the rest of that conversation. Any new conversations will prompt for that confirmation again. Refreshing the same conversation will also prompt for confirmation again on subsequent turns.

You can connect several Flowgear MCP servers at the same time. To connect another Tenant, Site, or Environment, repeat these steps with that Environment's Server URL and Recommended name, creating one connector for each Environment.

See also

Flowgear MCP Server
Enable a v1 Runtime Workflow as a MCP Tool
Connect Flowgear MCP to Claude
Connect Flowgear MCP to Claude Code

Model Context Protocol
ChatGPT Developer Mode - Full MCP client access for connectors and tools.