Self-Hosting Mem0: A Complete Docker Deployment Guide

You ship an AI assistant, users love it, and then legal asks where the conversation data lives. Nobody has a great answer when the memory layer runs on someone else's servers, priced at whatever the provider decides next quarter. Self-hosting removes the problem entirely. Mem0's open-source server packages the full self-hosting stack into three Docker containers: FastAPI for the REST API, PostgreSQL with pgvector for embeddings , and Neo4j for entity relationships. Everything stays on your network. You'll go from an empty directory to a running deployment, then work through the REST API, swap in local models for offline operation, harden things for production, and deploy to AWS. TLDR Mem0's self-hosted stack is three Docker containers: the API server, PostgreSQL with pgvector, and Neo4j. One docker compose up gets you running. The REST API handles full CRUD on memories without needing the Python SDK. Curl works fine. Default setup is OpenAI (gpt-5-nano for extraction, text-embedding-3-