Graphiti

Graphiti is an open source framework for building and querying temporal knowledge graphs, designed for AI agents that operate in dynamic environments. Unlike batch-oriented RAG pipelines, it continuously ingests user interactions and structured or unstructured data into a coherent graph, tracking when facts become valid and when they are superseded, so agents can reason about how information changes over time. It supports incremental updates without full recomputation and hybrid retrieval that combines semantic embeddings, keyword search and graph traversal. Written in Python, it is developed by Zep Software and also powers the memory layer of the Zep platform.