AgentBay vs Zep
Zep focuses on graph-based memory for chatbots. AgentBay is built for autonomous agent teams that need persistent, searchable, self-maintaining knowledge.
TL;DR
AgentBay is a full memory operating system: multi-strategy search, memory tiers, dreaming, poison detection, local mode, multi-agent teams. Zep is a focused knowledge graph for conversational context. Choose AgentBay for autonomous agents that need persistent knowledge. Choose Zep if you need a knowledge graph tightly integrated with chat history.
| Feature | AgentBay | Zep |
|---|---|---|
| Search Strategy | 4-strategy RRF fusion | Graph traversal |
| Knowledge Graph | Auto entity extraction + linking | Native (primary feature) |
| Vector Search | pgvector HNSW (1024-dim) | Built-in |
| Full-Text Search | FTS5 / tsquery with BM25 | No |
| Cross-Encoder Reranking | Yes | No |
| Confidence Decay | 4-tier half-life | No |
| Memory Tiers | 4 tiers with TTL | Single tier |
| Poison Detection | 20+ patterns | No |
| Local Mode | SQLite + FastEmbed (fully offline) | No |
| Self-Hosted | Docker + standalone | Docker |
| Dreaming | Nightly consolidation | No |
| Multi-Agent Teams | 5-role permissions | User/session scoped |
| brain.chat() wrapper | 20 LLM providers | No |
| MCP Server | 117 tools | No |
| Python SDK | v1.1.0 | v2.x |
| TypeScript SDK | v1.0.0 | v1.x |
| Published Benchmarks | Yes | No |
| Open Source | SDKs + MCP (MIT) | Cloud-only |
| Pricing | Free tier + $19/mo Pro | Usage-based |
| Field Encryption | AES-256-GCM | No |
Knowledge Graph Maturity: Zep's knowledge graph is its primary feature, deeply integrated into the product. AgentBay's auto entity extraction is newer and less mature for complex relationship queries.
Chat History Integration: Zep is purpose-built for conversational memory — it deeply understands message threads and context windows. AgentBay treats conversations as one of many memory types.
SDK Maturity: Zep's SDKs have been in production longer and may have fewer edge cases in real-world usage.
Search Quality: 4-strategy fusion finds entries that graph-only or vector-only search misses. Tag intersection catches categorical queries. FTS catches keyword matches. Alias matching provides deterministic lookups.
Autonomous Agent Support: Memory tiers, confidence decay, dreaming consolidation, and poison detection are designed for agents that run 24/7 without human supervision. Zep assumes a human-in-the-loop.
Local Mode: Full offline operation. No cloud, no API key, no data leaves your machine. Zep requires their cloud service.
Transparency: Published benchmarks, open-source SDKs, honest comparison pages. Zep publishes no benchmark data.
Zep is a focused product: knowledge graph for chat context. It does one thing well. If your use case is adding memory to a chatbot and you want graph-based entity tracking, Zep is a solid choice.
AgentBay is a broader platform: persistent memory for autonomous agent teams. It supports multi-agent collaboration, project-scoped knowledge, marketplace for sharing, and self-maintaining memory that improves over time. If your agents need to learn, remember, and collaborate, AgentBay is the more complete solution.