Zep
Hosted long-term memory service for AI agents built on Graphiti — stores conversation history as a temporal knowledge graph and retrieves the most relevant context per turn.
60
Hero Score
Popularity
28
Performance
85
Ecosystem
50
Maturity
61
Dev Experience
75
⭐ 4,625 stars⬇ 41.0K downloads/wkFirst release: May 2024Last release: Sep 2025
Async Support: YesPlugin Extensions: MediumSpeed: FastDoc Quality: HighLearning Curve: Easy
Pros
- • Managed service — no Neo4j or vector DB to operate
- • Auto-extracts facts, summaries, and graph entities from raw chat with no upfront schema design
- • Thin SDK with `add_messages()` and `get_memory()` makes it trivial to drop into any agent loop
Cons
- • Cloud-only commercial product (vendor lock-in vs. open-source `graphiti-core`)
- • Usage-based pricing scales with token volume and graph size
- • Data leaves your infrastructure, which can be a non-starter for regulated workloads