AI Chatbot SaaS (Multi-Tenant)
Build a multi-tenant AI chatbot SaaS — auth, billing, knowledge bases, RAG, the works. The 2026 portfolio archetype.
About this project
Every full-stack candidate in 2026 should have shipped one AI SaaS. This project teaches the canonical stack: Next.js + Postgres + pgvector + Anthropic SDK + Stripe. Multi-tenant data isolation, per-tenant knowledge base uploads, RAG, and Stripe subscriptions with usage-based billing on tokens. The hardest parts are not the AI — they are the boring parts: data isolation, billing, admin tools, abuse prevention.
Why build this in 2026?
AI SaaS is the 2026 portfolio bar — shipping one of these closes the loop on "can this person actually build a product".
What you'll ship
- Live deployment with real customers (even 1 paying counts)
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