Audience
Solo developers building AI-powered products
About Gemmein
Gemmein is the backend for AI-powered products. One SDK covers sign-in with one-time email codes, data in collections, Stripe payments, credits, AI tools, relays and email. Each collection has one of seven plain-English safety rules, enforced on Gemmein's servers, instead of row-level-security policies you write.
AI tools are named operations defined on the server. The app sends a name and inputs; Gemmein spends the credits, adds your provider key and streams the answer. Payments run through your own Stripe via Payment Links Gemmein makes, so you never build a webhook.
Building is local and free with npx -y gemmein dev. Live apps pay $50-$150 a month, banded by the previous month's active people. Gemmein is in beta.