# NestJS AI SaaS Starter

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

https://topboilerplates.com/nestjs-ai-saas-starter

Framework: NestJS | Pricing: Free | GitHub stars: 2

## Verdict

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.

## Description

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 and cons

+ 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

- 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

## Features

- ai-agents
- streaming-responses
- rag-vector-search
- byo-api-key
- model-agnostic
- background-jobs
- e2e-tests
- monorepo
- open-source
- mit-licensed
- free-tier

## Stack

- TypeScript
- OpenAI
- OpenRouter

## Links

- Website: https://topboilerplates.com/go/nestjs-ai-saas-starter
- GitHub: https://github.com/Hive-Academy/nestjs-ai-saas-starter

## Alternatives

- [SvelteKit AI Chatbot (jianyuan)](https://topboilerplates.com/sveltekit-ai-chatbot-jianyuan)
- [Laravel AI Chat](https://topboilerplates.com/laravel-ai-chat)
- [Cloudflare Agents Starter](https://topboilerplates.com/cloudflare-agents-starter)