Popcorn Editor for ChatGPT

com.popcorneditor/popcorn

Create, edit and preview print-ready designs (CMYK, bleed, dielines) in Popcorn Editor.

client:ChatGPT transport:streamable-http

Install Popcorn Editor in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://popcorneditor.com/mcp/popcorn

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