The first AI pair programmer for backend developers

Line0

The first AI pair programmer for backend developers

Line0 is the first AI pair programmer designed and built specifically for backend developers. You can build a production-ready backend API services in minutes with just a few prompts. Backend has been largely ignored by the latest vibe coding tools, and we are trying to change this by building something that is fine-tuned and optimized to build robust, scalable and secure standalone backend services. Currently you can build Express.js APIs but we are working hard to add support for more frameworks and languages like FastAPI, Go Lang, Java, Ruby on Rails and others. Features: * Generate APIs with AI * 2-way GitHub synchronization * Prompt enhancement * Team collaboration Coming soon: * In-browser API Client and Preview Sandboxes * Documentation generation * Project dependency graph

Classified in

  • Line0
  • Line0
  • Line0

Comments, support and feedback

  • Ivan Ivanov
    24 days ago

    Hey everyone! I'm Ivan, Founder of Vratix, and I am building AI-native dev tools to simplify backend development. Started with an open source library of reusable API modules and now I am introducing Line0 - the first AI pair programmer for backend development. Vibe coding has become super popular in recent months, but for some reason backend has been largely ignored in all of this. Most tools are either generic coding co-pilots or fullstack tools for non-tech users to build web apps. This is why I wanted to build a tool that is built and designed specifically for backend developers and technical users. With Line0 you can get a fully working backend API service in just a few prompts. We also have a 2-way synchronization with GitHub which means you can start in Line0, continue building in your favorite code edditor and then come back in Line0 to generate more features. At Vratix, we are on a mission to build the most advanced backend development platform - from infrastructure design and code generation to cloud provisioning with AI. In the next couple of weeks and months we will be adding: - An in-browser preview sandboxes to test your newly generated APIs - Documentation generation - Generate from Swagger definitions - Project dependency graph - Live collaboration Excited to see what you guys build and what you think of Line0!

About this launch

Line0 by Ivan Ivanov Will be launched January 6th 2026.

Trending launches