a-stack

A template for web apps built on Claude.

Next.js and FastAPI on Vercel, Supabase for data and files, Clerk for auth, and Modal for long-running agents. Three demos exercise every part of the stack.

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Demos

01
Chat
Stream replies from Claude with PDFs, images, and text files attached.
02
Agents
Configure an agent with tools and run it in the background on Modal.
03
Structured output
Get JSON that is guaranteed to match a schema you write.