Why can't I find Add custom MCP server?

Custom MCP availability depends on your ChatGPT account and workspace settings. Check on the web and ask your workspace admin if the option is missing.

Can I find Winskel in the public directory?

Use custom setup until Winskel has a public listing. Installed plugins are in Personal.

How to connect ChatGPT to Winskel

Open an installed Winskel plugin

Open Personal in ChatGPT Plugins. Select Winskel and choose Try in chat. If it is missing from Personal, use the first-time setup below.

Add Winskel for the first time

Open ChatGPT Plugins in your browser.
Click + (Add), then Add custom MCP server.
Enter Winskel in Name. Copy https://space.winskel.com/api/mcp and paste it into Server URL.
Choose OAuth. Under Advanced OAuth settings, select Dynamic Client Registration. Leave Client ID and secret blank.
Review the access prompt. If you agree, check the confirmation box. Click Create as a plugin and install Winskel.
Open a new chat, type @, and select Winskel.
If ChatGPT asks you to connect, sign in to Winskel. Choose All my Spaces if ChatGPT should create Spaces, or One Space only for one existing Space. Click Approve connection.
Ask “Use Winskel to find my Space.” Compare the result with the Space you see in your browser.

Reconnect or change accounts

Open Winskel from Personal and choose Manage. Use Connect another account to start a new approval. To let ChatGPT create Spaces, sign in with your usual Winskel email and approve All my Spaces. Return to ChatGPT and select @Winskel again.

Pick up a teammate's handoff

Ask “Use Winskel to find the handoff for me in My project. Read the attached file versions and tell me what's next.” Replace My project with your Space name.

When the app opens but Winskel is missing

Opening ChatGPT Plugins is the start of the process. For a returning user, check Personal in the same ChatGPT workspace where you originally installed Winskel. A different ChatGPT profile or workspace can show a different list. For first-time setup, use the custom server option only if that workspace offers it. If it is missing, ask the workspace admin to confirm your account can add custom MCP apps.

After installation, open a new chat in the eligible workspace and select Winskel for that chat. If ChatGPT asks you to sign in again, look at the account on the Winskel approval screen before continuing. A plugin can be present in Personal while the active Winskel authorization belongs to another account or covers another Space.

Verify the connection before sharing work

Open the Space in your browser first. Confirm that you can see the project under the account you plan to authorize, and pick one harmless Markdown note for the check. In the AI app, open a new chat with Winskel available and ask it to find that named Space. Then ask it to read the note and tell you which version it used. Compare the answer with the Files panel.

Treat a successful sign-in and a successful read as separate checks. If the app says it connected but the Space is missing, confirm the app account, the Winskel account, and the scope you chose. Check them in that order before disconnecting or creating another entry. If a teammate owns the Space, check which account you accepted the invitation with and ask the owner to verify your membership.

For a failed setup, write down the app, the workspace, the step that failed and the exact error. Use the Space connection playbook to match the step. Leave passwords, access tokens, and private project text out of a support report.

Questions

Why can't I find Add custom MCP server?: Custom MCP availability depends on your ChatGPT account and workspace settings. Check on the web and ask your workspace admin if the option is missing.
Can I find Winskel in the public directory?: Use custom setup until Winskel has a public listing. Installed plugins are in Personal.