Zep

Long-term memory service for AI assistants and agents.

Visit site GitHub
Open source Self-hostable freemium
Agent memoryLibrary
LicenseApache-2.0
PriceFree tier
UsageNo model cost
Model supportmulti
Languagespython, go
GitHub stars4.7k
Last activity2026-07-03
Verified2026-06-28
Verified byseed

A long-term memory service that ingests conversation history, extracts facts and summaries, and provides temporal knowledge graph retrieval so agents recall what was said, when, and how it relates to prior context.

Strengths

  • Temporal knowledge graph for time-aware recall
  • Summarizes and extracts facts from session history
  • Self-hostable or managed cloud

Tradeoffs

  • Smaller community than Mem0
  • Requires a running service (not just a library)

Covers

Context managementSelf-hosting

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