NestJS AI SaaS Starter

Modular NestJS + LangGraph AI platform with streaming, checkpointing and multi-agent orchestration

NestJS AI SaaS StarterCheck NestJS AI SaaS Starter

Best for: Teams building serious multi-agent AI workflows on NestJS who need durable execution, streaming, and vector+graph memory rather than a simple chat wrapper.
Skip if: You need a simple AI chat starter - this is a deep orchestration platform (14 libraries) with real architectural complexity to learn.

NestJS AI SaaS Starter is a free, MIT-licensed Nx monorepo built around 14 publishable NestJS libraries for AI workflow orchestration with LangGraph. It provides declarative and functional workflow APIs, token/event streaming via decorators, durable checkpoint-and-replay execution, human-in-the-loop approval gates, and a unified vector+graph memory layer (via included ChromaDB and Neo4j NestJS integrations), with OpenRouter, Ollama and HuggingFace as supported AI providers.

Pros

Genuinely deep feature set for AI orchestration - checkpoint/replay, human-in-the-loop gates, and vector+graph memory fusion are rare in boilerplates
Provider-agnostic - OpenRouter, Ollama, and HuggingFace all supported for LLMs/embeddings
Built as reusable, publishable Nx libraries rather than a single monolithic app

Cons

Very early-stage with only 2 GitHub stars - essentially unproven outside its origin (appears hackathon-born)
Significant architectural complexity (14 libraries, Neo4j + ChromaDB) versus a simple starter's learning curve
Documentation leans on internal hackathon docs rather than a polished public guide