What is Zep?
Temporal memory and context graphs for agents.
Who is Zep best for?
Zep is best for teams building AI agents that need to remember users and business data as facts change over time.
Assistants that remember users
Past conversations and user activity go into a graph, so an agent recalls preferences and history across sessions.
Facts that change over time
When new information contradicts an old fact, Zep marks the old one invalid and keeps it as history, so agents know what is true now.
Customer and account context
Account records, documents, conversations and events feed one context graph that agents query in under 200 milliseconds.
Regulated enterprises
The Enterprise plan adds HIPAA BAAs, audit logs kept for a year, and deployment with your own keys or inside your own cloud.
How much does Zep cost?
Zep has a free plan with 10,000 credits a month, and its self-serve plans cost $125 a month for Flex or $375 a month for Flex Plus, with Enterprise priced on request.
- 10,000 credits a month, no rollover
- 2 projects, 1 Memory MCP Server seat
- Variable rate limits and lower processing priority
- 50,000 credits a month, then $25 per 10,000
- 600 requests a minute, 5 projects
- Unused credits roll over for 30 days
- 200,000 credits a month, then $75 per 40,000
- 1,000 requests a minute, 10 projects
- Observations, webhooks, analytics and custom extraction
Billed yearly, Flex is $1,250 a year ($104 a month) and Flex Plus $3,750 a year ($312 a month), about 17% off. One credit covers an Episode (a chat message, JSON payload or block of text) up to 350 bytes, plus one credit per extra 350 bytes; retrieval, storage and users are not metered. When the balance drops below 20%, Flex tops up 10,000 credits for $25 and Flex Plus 40,000 for $75. Enterprise adds HIPAA BAAs, guaranteed rate limits, your own encryption keys or deployment in your own cloud, and negotiated rates, priced on request. Full pricing on getzep.com. We checked these prices on .
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What are the best Zep alternatives?
Three tools on Recaply do Zep's job. All three are open source, so you can run them on your own server.
HonchoOpen SourceChoose it when you want long-term user memory for agents under AGPL-3.0, self-hosted or priced per million tokens ingested.
MemPalaceOpen SourceChoose it when you want free local memory for Claude Code and other agents that saves chats verbatim for search.
LettaOpen SourceChoose it when you want whole agents that keep their memory across models, with Apache 2.0 code you can run yourself.
More open source alternatives
See all
Questions about Zep
What is Zep?
Temporal memory and context graphs for agents.
Who is Zep for?
Zep is best for teams building AI agents that need to remember users and business data as facts change over time.
Is Zep free?
Yes. Zep has a free plan: 10,000 credits a month, no rollover.
How much does Zep cost?
Zep's paid plans are Flex at $125 per month and Flex Plus at $375 per month.
Is there an open source alternative to Zep?
Yes. Honcho, MemPalace, Letta and Vectorize are open source tools that do the same job, so you can run your own.
What are the best Zep alternatives?
The closest alternatives on Recaply are Honcho, MemPalace and Letta.
Where can I try Zep?
On its official website, getzep.com.
How do Zep credits work?
Zep charges credits when you add data: each Episode, such as a chat message, JSON payload or block of text, costs 1 credit per 350 bytes, so a 1,200-byte Episode uses 4 credits. Retrieval, storage, threads and users cost nothing.
Open Memory Protocol
Context7
Context.dev
Claude Managed Agents
HelixDB
DigitalOcean Managed Agents