# Graphiti

> Apache-2.0 temporal knowledge graphs for agent memory; Zep's OSS engine

**Category:** AI Agents  
**Pricing:** open-source  
**URL:** https://help.getzep.com/graphiti  
**GitHub:** https://github.com/getzep/graphiti  
**Added:** 2026-09-04

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## The Hook

Graphiti is bi-temporal agent memory as a graph when Mem0 is vector-first recall and Letta is self-editing agent state.

## What's Good

Apache-2.0. Episodes → entities/edges with validity windows; hybrid retrieve (embeddings + BM25 + graph). Neo4j/FalkorDB/Kuzu/Neptune. MCP server for agent IDEs. Powers Zep's managed context lake.

## The Catch

Framework only — you run a graph DB + ops. Zep Community Edition deprecated; full Zep SaaS is separate (Free credits then Flex ~$104/mo billed annually). Not a drop-in chat history store. Schema/ops cost vs Mem0 Docker.

## Verdict

Apache-2.0 temporal memory graphs. Free self-host; Zep Cloud is the paid path.