api
The premium Open Source alternative to Firebase
🎯 Best for:Founders building NestJS SaaS.
What is api?
A self-hosted alternative to Firebase and Supabase backends. It uses a modular NestJS architecture to provide built-in multi-tenancy and automated API documentation.
Tech Stack
TypeScriptBackend & Auth
Why api?
- • Scalable architecture
- • Built-in multi-tenancy
- • TypeScript native
Limitations
- • Opinionated structure
- • NestJS learning curve
- • Heavyweight boilerplate
3/4/2026
Last Update
212
Forks
10
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to api instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Firebase)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%