Sleek for ChatGPT
design.sleek/sleek
Design your mobile app UI with AI, then have your coding agent build the real app from it.
client:ChatGPT
transport:streamable-http
tools:11
Install Sleek in ChatGPT
Settings → Connectors → Advanced → Developer mode
https://sleek.design/api/mcpCustom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs