Compare · claude-mem vs Zep

claude-mem vs Zep

Zep: A memory server building a temporal knowledge graph from chats.

Zep is a memory server that builds a temporal knowledge graph from chat history — you run it and integrate it into your stack. cmem takes a different path: it installs into your coding agent and captures structured observations automatically as you work, then exposes them to any MCP client. The engine is open source and local-first; CMEM Cloud adds one private sync link.

Feature by feature
Capability
Zep
cmem.ai
Primary use
Memory server for chat apps
Memory plugin for coding agents
Automatic capture while coding
Varies
Out-of-band observation writer
MCP server out of the box
Check their docs
One private MCP link, any client
Local-first storage
Server you operate
Local SQLite, cloud sync opt-in
Structural code exploration
Varies
smart-explore, 6–12× cheaper
Price
Varies
$0 cloud during early access
How migration works

Move without ripping anything out

01

Install the engine

Run npx claude-mem@latest install. The open-source engine wires into Claude Code natively and starts writing observations — nothing to migrate first.

02

Keep what you have

cmem speaks MCP, so it sits alongside Zep rather than replacing it. Point any MCP client at your private link and both can read.

03

Recall everywhere

Once CMEM Cloud mirrors your DB, the same memory is reachable from every agent and machine through one private MCP link.

What you get

Memory that compounds, built in

Automatic capture

A second model writes structured notes out-of-band — no prompting, no slowdown.

Auto-categorization

Decision, bugfix, feature, discovery, security — every note lands in a taxonomy.

Search three ways

Semantic, keyword, and timeline search over everything your agents have done.

Causality threading

Before/after links connect why a change happened to what came next.

Local-first & private

Memory lives in local SQLite with privacy stripping; cloud sync is opt-in.

Smart-explore

Structural codebase exploration that is 6–12× cheaper than reading files in full.

See all features →

Early access

Try a drop-in memory plugin

The engine is open source and free to install today. Cloud sync is $0 during early access — join the waitlist and your private MCP link arrives by email.