head to head · open source
claude-mem vs Mem0
claude-mem has 94,125 GitHub stars, 8,305 forks, 186 open issues and last shipped yesterday. Mem0 has 65,505 stars, 7,683 forks, 742 open issues and last shipped yesterday. claude-mem leads on adoption by 44% (94,125 vs 65,505 stars). claude-mem is written in TypeScript under Apache-2.0; Mem0 is written in Python under Apache-2.0. claude-mem has attracted 9% as many forks as stars, Mem0 12%. claude-mem was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai, ai-agents), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| claude-mem | Mem0 | |
|---|---|---|
| GitHub stars | ★ 94K | ★ 66K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 8.3K | ⑂ 7.7K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick claude-mem if
- You weight community size — 94K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Mem0 if
- You want the Mem0 feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and Mem0 fits your workflow better
About claude-mem
claude mem is an Apache 2.0 TypeScript memory layer for AI coding agents that captures what an agent did during a session, compresses it with AI, and injects the relevant parts back into future sessions, built for developers running Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode and similar tools.
read the full claude-mem overview →
About Mem0
Mem0 is an open source memory layer for AI agents and applications, designed to store, retrieve, and manage persistent context across interactions. It lives in the Python based AI development ecosystem and provides infrastructure that enables agents and apps to remember user preferences, conversation history, and state over time—moving beyond ephemeral chat sessions toward truly adaptive systems.
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Frequently asked questions
Is claude-mem or Mem0 more popular?
claude-mem has 94,125 GitHub stars and Mem0 has 65,505. claude-mem has the larger community by that measure.
Are claude-mem and Mem0 free?
Both are open source. claude-mem is licensed under Apache-2.0 and Mem0 under Apache-2.0. Neither carries a licence fee.
What is the difference between claude-mem and Mem0?
claude-mem is written in TypeScript and Mem0 in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, claude-mem or Mem0?
Choose claude-mem if you want the larger community (94,125 stars) or its Apache-2.0 licence terms. Choose Mem0 if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.