head to head · open source
Mem0 vs cli
Mem0 has 65,539 GitHub stars, 7,687 forks, 742 open issues and last shipped yesterday. cli has 31,040 stars, 1,840 forks, 131 open issues and last shipped 2 days ago. Mem0 leads on adoption by 111% (65,539 vs 31,040 stars). Mem0 is written in Python under Apache-2.0; cli is written in Rust under Apache-2.0. Mem0 has attracted 12% as many forks as stars, cli 6%. Mem0 was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| Mem0 | cli | |
|---|---|---|
| GitHub stars | ★ 66K | ★ 31K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Rust |
| Last push | 2026-09-18 | 2026-09-17 |
| Forks | ⑂ 7.7K | ⑂ 1.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Mem0 if
- You weight community size — 66K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick cli if
- You want the cli feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and cli fits your workflow better
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.
About cli
gws is a command line tool for Google Workspace, written in Rust and released under the Apache 2.0 license. It provides a single interface for Drive, Gmail, Calendar, Sheets, Docs, Chat, Admin, and the wider set of Workspace APIs. Rather than shipping a fixed list of commands, it reads Google's own Discovery Service at runtime and builds its entire command surface dynamically, so new API endpoints and methods appear without a CLI release. The project lives in the Google Workspace ecosystem and is explicitly not an officially supported Google product.
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Frequently asked questions
Is Mem0 or cli more popular?
Mem0 has 65,539 GitHub stars and cli has 31,040. Mem0 has the larger community by that measure.
Are Mem0 and cli free?
Both are open source. Mem0 is licensed under Apache-2.0 and cli under Apache-2.0. Neither carries a licence fee.
What is the difference between Mem0 and cli?
Mem0 is written in Python and cli in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Mem0 or cli?
Choose Mem0 if you want the larger community (65,539 stars) or its Apache-2.0 licence terms. Choose cli if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.