Best Alternatives to Zep

Explore 4 top-rated alternatives to Zep in the agent memory category. Compare features, pricing, and find the perfect fit for your needs.

About Zep

Zep provides agent memory capabilities for teams building and operating AI applications. It supports the MCP ecosystem.

Free

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Top Recommended Alternatives

Letta

AI Agent Framework

From

Free

Framework and cloud service for building stateful AI agents that remember, learn continuously, and improve over time — the successor to MemGPT.

Key Strengths:

  • ✓Persistent, editable memory is built into the agent runtime
  • ✓ADE exposes agent state and tool calls for debugging

LangMem

AI Memory & Search

From

Free

LangChain memory primitives for long-horizon agent workflows.

Key Strengths:

  • ✓Native integration with LangGraph's BaseStore and LangChain agents, so memory plugs into existing pipelines without bespoke glue code
  • ✓Supports semantic, episodic, and procedural memory types — including a prompt optimizer that lets agents learn from experience without fine-tuning

Supermemory

AI Memory & Search

Supermemory is the memory and context layer for AI agents — a graph-based memory API with extractors, connectors, and retrieval for personal apps and enterprise stacks.

Key Strengths:

  • ✓Graph + extractor approach catches facts that vector RAG misses
  • ✓Connector library means real productivity in days, not weeks

Cognee

AI Memory & Search

From

Free

Cognee is an open-source agent memory platform that builds a hybrid knowledge graph and vector index from your data so LLM agents recall structured facts, not just nearest-neighbour text chunks. Free Hobby, usage-based Growth, custom Enterprise.

Key Strengths:

  • ✓Graph + vector hybrid beats vector-only RAG on multi-hop questions
  • ✓Pluggable storage — bring your existing Neo4j, pgvector, or Qdrant

Quick Comparison

ToolStarting PriceBest ForAction

Zep

Current Tool

Freetracks when facts changeView Details

Letta

FreePersistent, editable memory is built into the agent runtimeView Details

LangMem

FreeNative integration with LangGraph's BaseStore and LangChain agents, so memory plugs into existing pipelines without bespoke glue codeView Details

Supermemory

Free: $0/month with about $5/month of usage included, Hermes Plugin, Supermemory MCP, and community support. | Pro: $19/month with about $20/month of usage included, unlimited storage, unlimited users, auto top-up, Google Drive, Notion, and OneDrive connectors, 2 teammates, OpenClaw and Claude Code plugins, and email support. | Scale: $399/month with about $600/month of usage included, unlimited storage/users, up to 10 teammates, and all connectors for production workloads.Graph + extractor approach catches facts that vector RAG missesView Details

Cognee

FreeGraph + vector hybrid beats vector-only RAG on multi-hop questionsView Details

Why Consider Zep Alternatives?

While Zep is a popular choice in the agent memory category, exploring alternatives can help you find a tool that better matches your specific needs, budget, or workflow preferences.

Common reasons to explore alternatives include:

  • Different pricing models or more affordable options
  • Specific features that Zep may not offer
  • Better integration with your existing tools
  • Performance or user experience preferences
  • Regional availability or support requirements

Compare the tools above to find the best fit for your specific use case.

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