WebBuilder

AI builder that turns natural language into React/Next.js apps via a multi-agent LangGraph workflow.

Completed Nov 6, 2025

About this project

FastAPI orchestrates agents and runs code in isolated E2B sandboxes with real-time WebSocket updates. Supports JWT auth, token limits, PostgreSQL, and multiple LLMs (OpenAI, Gemini, Anthropic, HuggingFace). The Next.js frontend provides chat, file viewer, preview, and downloads.

Key features

• Multi-agent LangGraph pipeline
• E2B sandboxed execution with lifecycle management and validation
• Real-time WebSocket streaming
• Chat-driven iterative development with token-based rate limits

Technologies