Show HN: Open-source UI components for apps that run inside ChatGPT

800M people use ChatGPT and Claude weekly. Right now they get text responses. Soon they'll get real interfaces: product cards, blog posts, booking flows, payment screens rendered directly in the conversation.

We built an open-source component library for this. Install any block with one command and customize it to your brand.

If you're building MCP servers or experimenting with AI-native apps, this might save you time.

Are you building apps for AI assistants? Would love to hear what's missing in your workflow.