Show HN: FastApps – zero-boilerplate framework for building ChatGPT apps

2 pointsposted 2 days ago
by zachpark
(fastapps.org)

8 Comments

donebydone

2 days ago

Oh nice. I actually thought about building something similar. Did you benchmadk the one Vercel made for nextjs?

dohyun1m

a day ago

Hi I'm David, Co-founder of FastApps! Yes we did benchmark Next.js support for ChatGPT apps. We figured out there was nothing like it for python.

Apps in ChatGPT is based on MCP servers, and as you know many people develop mcp servers in python. So we believe that FastApps would be the best choice for people who are building ChatGPT apps in python.

rosaaie

2 days ago

looks promising. So is this basically just a codegen tool or scaffolding to save some boilerplate or is it an actual runtime framework that keeps running alongside the chatgpt?

zachpark

2 days ago

It’s an actual runtime, not just scaffolding. FastApps runs as an MCP server and it handles widget registration, protocol messages, static assets, and the data flow between backend and frontend.

When you run fastapps create, you get a running service that ChatGPT talks to over MCP, not just a code template. You can extend or deploy it like any other web app.

freakynit

2 days ago

This is really well done.

Any scope for backend-only part? Also, couldn't find examples for nodejs.. is it supported?

Thanks..

zachpark

10 minutes ago

Right now FastApps mainly focuses on Python-based backends.

Could you share a bit more on what you mean by “backend-only"? Are you thinking of running logic without any UI part?

Node.js isn’t supported yet, but I’d love to hear your use case!

rosaaie

2 days ago

Makes sense. How opinionated is it about the frontend? I saw React in the docs or can I use something else?

zachpark

2 days ago

Right now it's React-first because the Apps SDK UI layer is React-based. But the frontend is bundled automatically, so if OpenAI expands support for other frameworks later, swapping it out would be straightforward.