Support

ChatGPT Setup

Connect Tempreon to ChatGPT for persistent intelligence across your conversations.

Overview

ChatGPT supports the Model Context Protocol (MCP) through its Developer Mode feature. Once enabled, you can connect Tempreon as a custom app — giving ChatGPT access to your Core Imprint, Knowledge Vault, and full intelligence layer.

Prerequisites

  • A paid ChatGPT plan — as of August 2026, custom MCP apps are available on Plus, Pro, Business, Enterprise, and Edu (not Free). OpenAI documents full MCP (tools that can save and update) for Business, Enterprise, and Edu workspaces, and describes Pro as connecting MCP servers with read and fetch permissions in developer mode; on Plus and Pro, expect lookups to work and treat write tools (saves) as limited. Custom apps are web only — they don't run in the ChatGPT mobile apps.
  • A Tempreon account with at least one available Bridge slot
  • Your Tempreon MCP server URL (found in your Bridges dashboard)

Step-by-Step Setup

1. Enable Developer Mode

Developer Mode is required before you can connect custom MCP apps. It's a one-time toggle:

  1. Log in to ChatGPT on the web
  2. Click your profile name/icon in the lower-left corner
  3. Click Settings
  4. Go to Apps (older versions label this "Apps & Connectors" or "Connectors" — OpenAI renamed connectors to apps in December 2025)
  5. Click Advanced Settings
  6. Toggle Developer Mode on

Don't see it there? OpenAI's developer documentation describes the toggle under Settings → Security and login → Developer mode, and custom apps created from chatgpt.com/plugins. The two paths have both been documented during 2026 and the labels vary by account and build — if one doesn't match what you see, try the other.

On Business workspaces, an admin first enables custom MCP under Workspace Settings → Permissions & Roles → Connected Data, and each admin toggles Developer Mode for themselves. On Enterprise/Edu, admins grant access the same way.

Note: Developer Mode is a beta feature for building and connecting custom MCP tools. It's designed for development integrations like Tempreon — it's not a "jailbreak." The orange border you'll see around ChatGPT while in Developer Mode is normal and expected.

2. Create the Tempreon App

Once Developer Mode is enabled:

  1. Go to Settings > Apps > Advanced Settings
  2. Click Create App
ChatGPT Advanced Settings showing the Create App button

3. Configure the App

In the new app dialog, fill in:

  1. Icon — Upload the Tempreon icon (download here) to make it easy to spot
  2. Name — Enter Tempreon (or whatever you'd like to call it)
  3. Description — Optional (e.g., "My intelligence layer")
  4. MCP Server URL — Paste the URL from your Tempreon Bridges dashboard
  5. Authentication — Leave the default set to OAuth
  6. Check the "I understand" acknowledgment for custom MCP server risk
  7. Click Scan Tools — current versions scan the server's tool list before creation. With OAuth, complete the authorization prompt first, then let the scan finish
  8. Click Create — the app appears with a "Dev" label in your settings (workspace admins see it under a Drafts tab until published)
New app dialog with fields for icon, name, MCP Server URL, and OAuth authentication

4. Authorize the Connection

After creating the app:

  1. ChatGPT will prompt you to authenticate
  2. A browser window opens with the Tempreon authorization page
  3. Log in to your Tempreon account if prompted
  4. Review the permissions and click Approve
  5. You'll be redirected back to ChatGPT — the connection is now active

5. Enable in Your Chats

To use Tempreon in a conversation:

  1. Open a new chat
  2. Click the + button in the chat input area
  3. Click More
  4. Find your Tempreon app and select it
ChatGPT chat menu showing the option to add your Tempreon app

Tempreon will show as active in the chat. The orange Developer Mode border around the interface is normal.

ChatGPT conversation with Tempreon connected and active

6. Verify It's Working

Try saying:

  • "What do you know about me from Tempreon?"
  • "Search my knowledge base"
  • "What Tempreon tools do you have access to?"

If ChatGPT responds with information from your Core Imprint or lists Tempreon tools, the Bridge is working.

Multi-Model Intelligence

One of the key advantages of using Tempreon with ChatGPT alongside Claude is true multi-LLM intelligence. Knowledge you store in a Claude session is immediately available in ChatGPT, and vice versa. Your intelligence layer follows you across providers — no manual syncing.

ChatGPT-Specific Notes

  • Developer Mode border: The orange border around the ChatGPT interface while using custom MCP apps is normal and expected. It indicates Developer Mode is active.
  • Session behavior: ChatGPT loads your Tempreon context when you add the app to a conversation. To refresh context, start a new chat. You can also @-mention the app by name in a prompt to bring it in.
  • Atlas is going away: OpenAI announced on July 9, 2026 that its Atlas browser is being retired and stops working on August 9, 2026. If you had been reaching Tempreon through the Atlas sidebar, move to ChatGPT on the web — the app you created here works there with no changes.
  • Feature parity: Tempreon's tools are all exposed through the ChatGPT Bridge — Core Imprint, Knowledge Vault, tasks, file storage, network intelligence, and learning. Write actions (saves) depend on your plan's MCP permissions, and ChatGPT may ask for per-action confirmation on writes.

Try Saying...

  • "Remember that I prefer conservative financial projections in board presentations" — Stores a preference
  • "What decisions have I made about the product roadmap?" — Searches your Knowledge Vault
  • "Create a task to review the partnership proposal by Thursday" — Adds to your task queue
  • "Start my session focused on the consulting project" — Loads domain-specific context

Common Issues

ProblemSolution
Developer Mode toggle not visibleRequires a paid plan (Plus and up); on Business/Enterprise/Edu an admin may need to enable custom MCP first. Make sure you're on ChatGPT web — custom apps aren't available on mobile
Saves don't run, lookups workThat's the plan-level write gate — full MCP write support is documented for Business, Enterprise, and Edu workspaces
"Create App" not availableEnsure Developer Mode is toggled on in Advanced Settings
Authorization doesn't completeTry clearing browser cache and re-attempting
App not showing in chat menuClick + > More to find it
Context doesn't loadStart a new conversation with the app enabled

For more help, see Troubleshooting Connections.

Frequently asked questions

Why can't I find Developer Mode in ChatGPT?
Developer Mode lives under Settings → Apps → Advanced Settings, and it needs a paid plan — Plus, Pro, Business, Enterprise, or Edu (not Free). It's also web only, so you won't see it in the ChatGPT mobile apps. On Business, Enterprise, or Edu, an admin first has to enable custom MCP in Workspace Settings before the toggle appears for you.
Tempreon's lookups work in ChatGPT but saves don't. Why?
That's ChatGPT's plan-level write gate. OpenAI documents full MCP support, including tools that save and update, for Business, Enterprise, and Edu workspaces. On Plus and Pro, expect lookups to work and treat write tools as limited. ChatGPT may also ask you to confirm a write the first time it runs.
Is the orange border around ChatGPT a problem?
No. The orange border just means Developer Mode is active, which is required for custom MCP apps like Tempreon. It isn't a jailbreak or a warning, and it's expected while you have a custom app connected.