FAQ
Is there a free version of Zep Cloud?
Yes - Zep offers a free tier. See Pricing for more information.
What is the API URL for Zep Cloud?
The API URL for Zep Cloud is https://api.getzep.com. Note that you do not need to specify the API URL when using the Cloud SDKs.
If a service requests the Zep URL, it is possible it’s only compatible with the Zep Community Edition service.
Does Zep Cloud support multiple spoken languages?
We have official multilingual support on our roadmap, enabling the creation of graphs in a user’s own language. Currently, graphs are not explicitly created in the user’s language. However, Zep should work well today with any language, provided you’re using a multilingual LLM and your own prompts explicitly state that responses to the user should be in their language.
I can’t join my company project, because I have already created an account. What should I do?
You will need to delete your account and then accept the invitation from your company.
How well does Zep scale?
Zep supports many millions of users per account and retrieval performance is not impacted by dataset size. Retrieving/searching the graph scales in near constant time with the size of the graph. Zep’s Metered Billing Plan is subject to rate limits on both API requests and processing concurrency.
Can I use Zep to replace RAG over static documents?
Zep can be used for retrieval for static documents just like RAG or GraphRAG, although this is not what Zep was designed for. Zep was designed for dynamic, changing data, which RAG and GraphRAG were not designed to do.
How does the retrieval work for thread.get_user_context under the hood?
thread.get_user_context does a graph.search on nodes, edges, and episodes using the MMR reranker. It uses the most recent message as the search query. In addition, it does a BFS on the 4 most recent episodes (so it finds all nodes, edges, and episodes created by the 4 most recent episodes and all nodes and edges 2 connections deep).
All of those search results are then used as candidate results which are reranked by the MMR reranker. The MMR reranker will compare each search result with the most recent 4 messages to determine how relevant that result is to the current conversation.
I am seeing information duplicated between different node summaries. Is this normal?
This is a normal and intended feature of Zep. Node summaries are intended to be standalone summaries of the node, which often means describing the relationships that that node has to other nodes. Those same relationships are likely to appear in the summaries of those other nodes.
Should I use nodes, edges, or episodes when searching the graph and creating a context string?
You can use any combination of nodes, edges, and episodes. There is not a one size fits all solution, and you will likely need to experiment with different approaches to get the best performance for your use case.
Where is the data stored? What if my client needs it stored in the EU?
We only offer US data residency currently.
Can I self host Zep? What happened to Zep Community Edition?
Zep Community Edition, which allows you to host Zep locally, is deprecated and no longer supported. See our announcement post here.
The alternatives we offer include:
How do I get Zep to work with n8n?
The Zep n8n integration is no longer supported. We recommend using Zep’s SDKs directly instead, see here.
Why aren’t my episodes processing?
Sometimes episodes may appear to not be processing when they are actually processing slowly. Typically, episodes process in less than 10 seconds, but occasionally they can take a few minutes. Additionally, if you add multiple episodes to a single graph simultaneously, they must process sequentially, which can take time if there are many episodes.
Please confirm the following:
- Are you adding multiple episodes to a single graph all at once? If so, how many? Multiply the number of episodes you are adding to a single graph by 10 seconds for an average case time estimate, or by a few minutes for a worst case time estimate.
- If the above is the case, within the web app, find the most recently processed episode and then look at the next unprocessed episode. Confirm whether that episode remains unprocessed after waiting at least 3-4 minutes (the worst-case processing time). If you see this episode process after some waiting, then your episodes are processing, it just may take some time.
- If neither of the above applies, reach out to our support team on Discord and let them know what you are seeing.
How do I get the playground to work with my own data?
The playground is not meant to work with custom data. Instead the playground showcases Zep’s functionality with demo data. In order to create a graph with your own custom data, you need to use the Zep SDKs. See our Quickstart.
What’s the difference between Zep and Graphiti?
Graphiti is the open source knowledge graph engine that powers Zep. Both Zep and Graphiti allow you to create dynamic knowledge graphs from diverse sources of data, but Zep is the cloud service that handles all the complexity of servicing these knowledge graphs at scale for you.