Platemark for ChatGPT

com.rowhousesoftware/platemark

Render API: chart images, invoice and receipt PDFs with the math done, social images and video.

client:ChatGPT transport:streamable-http tools:4

Install Platemark in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://platemark.rowhousesoftware.com/mcp

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