How do I connect Scribble to ChatGPT?
In ChatGPT, turn on Settings → Connectors → Advanced → Developer mode, then add a connector pointing at https://scribblecards.com/api/mcp with OAuth authentication. Sign in to Scribble when prompted and choose what it may do.
On this page
#Add the connector
Turn on developer mode
Go to Settings → Connectors → Advanced and enable Developer mode. This is what lets you add a connector that is not in the directory yet.
Create the connector
Back in Connectors, choose Create. Name it Scribble, describe it as real handwritten cards, and use this MCP server URL:
Text https://scribblecards.com/api/mcpChoose OAuth authentication
Select OAuth rather than no authentication or an API key. There is nothing else to fill in — ChatGPT discovers the rest from the server.
Sign in and choose permissions
Complete the Scribble sign-in, untick anything you do not want, and confirm.
You’ll know it worked when Scribble appears in the connector list with its tools.
Use it in a chat
Start a new chat, enable Scribble from the tools menu, and ask it for your credit balance to check the connection.
#Approving an action
ChatGPT shows you the exact tool call before running anything that writes. On a send, that means you see the recipient, the address and the full message text before a card exists. Read it — that panel is the last point at which the card is still an idea.
#If it will not connect
| What you see | What it means |
|---|---|
| This MCP server does not implement our specification | Almost always a URL typo. It must be exactly https://scribblecards.com/api/mcp. |
| Authentication loops back to the sign-in screen | Your browser is blocking third-party cookies for scribblecards.com, or you cancelled the permission screen. Try again and approve at least one permission. |
| Connector unavailable in a chat | Developer-mode connectors have to be enabled per conversation. Turn Scribble on in the tools menu. |
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