CSS Crème for ChatGPT

com.csscreme/design-systems

Give your agent a real design system: tokens, measured WCAG contrast, and rules to follow.

client:ChatGPT transport:streamable-http tools:12

Install CSS Crème in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://csscreme.com/mcp

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