I Built a Real SaaS App With Claude Code... Here's How

I’ve been obsessing over this idea the past week and decided to build it with Claude Code and record the entire process.

The app solves a big problem creators have: being flooded with sponsorship requests and not having enough time to filter through them.

So I built a system that filters Gmail for sponsorship requests, displays them in a SaaS messaging UI, and lets you trigger deep research on brands to instantly find out if they are a good fit.

The app uses:

• N8n AI agent for filtering

• Next.js + shadcn frontend

• Supabase backend

• Perplexity api integration

If you’re interested in learning how to build something like this, here's the whole build from start to finish:

Cheers,

Moritz