I didn’t start this project because of a business need.
I just wanted to see how far I could get if I tried to build a “real” SaaS using only ChatGPT and AI tools.
The result is Vatify: an EU VAT validation & calculation API.
It can:
– Validate VAT numbers (VIES lookup)
– Return VAT rates for EU countries
– Calculate invoices (net/gross, B2B/B2C, reduced rates, etc.)
I’m not sure if this is a real business yet (there are competitors, and SEO is slow), but I learned a lot:
– Most of the backend and endpoints came from ChatGPT
– Even the docs, landing page, and logo were AI-assisted
– The hardest part was not coding, but figuring out how to make it useful for others
Demo: [https://vatifytax.app](https://vatifytax.app)
I’d love feedback from HN:
– Is this interesting enough as a niche?
– Would you trust a small tool like this vs. bigger incumbents?
– Any ideas where to find the first real users?
Even if it doesn’t turn into a business, it was a fun experiment. Curious if anyone else here has tried building a SaaS “AI-first” like this?
Comments URL: https://news.ycombinator.com/item?id=45322186
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Source: news.ycombinator.com
