Build a Local LLM API with Node.js, MongoDB & Ollama Elsner Technologies

Elsner Technologies26 Aug, 2025Web Development

This technical tutorial will guide you through creating a Local LLM API with a Node.js backend that connects to a MongoDB database (including combining dependent collections), exposes a REST API for real-time inference, and uses the open-source Ollama platform to run the deepseek-r1 LLM. This approach helps you build AI API locally with proper database and model integration.