Setup
ChatGPT
There are two ways in. If a plugin is in the app directory, open Apps, search for its name, connect, and sign in. Then type @ and pick it. Right now that's Continuity. The other nine are in review, so use developer mode for them until they're listed.
Developer mode, until a plugin is in the directory
This is an early-access route. It is for trying a plugin before ChatGPT lists it. Developer mode is meant for people who are comfortable connecting a server they chose. Follow OpenAI's developer mode guide.
- In ChatGPT on the web, open Settings, then Security and login, and turn on Developer mode. OpenAI lists this for Pro, Plus, Business, Enterprise, and Education.
- Go to ChatGPT Plugins.
- Select the plus button and create a developer-mode app. The plus button only does that after Developer mode is on. If the label says Add custom MCP server, that's the same step.
- Paste the plugin's server URL, including
/mcp. Choose sign-in (OAuth). Leave the client id empty so ChatGPT can register itself. Confirm the risk warning if ChatGPT shows one, then create it. - In a chat, open the plus menu and turn that app on.
On Business, Enterprise, and Edu, a workspace admin may have to allow developer mode first, under Workspace settings, then Permissions and roles. Regular ChatGPT users won't see these plugins in the directory until review finishes.