Scribble — Real Handwritten Cards for ChatGPT

com.scribblecards/handwritten-cards

Send real handwritten cards in the US. A machine writes each one in ink, then we mail it.

client:ChatGPT transport:streamable-http

Install Scribble — Real Handwritten Cards in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://scribblecards.com/api/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs