head to head · open source
claude-mem vs J-Space-Cognition-Suite
claude-mem has 94,286 GitHub stars, 8,321 forks, 186 open issues and last shipped yesterday. J-Space-Cognition-Suite has 3,011 stars, 222 forks, 0 open issues and last shipped 6 days ago. claude-mem leads on adoption by 3,031% (94,286 vs 3,011 stars). claude-mem is written in TypeScript under Apache-2.0; J-Space-Cognition-Suite is written in Python under Apache-2.0. claude-mem has attracted 9% as many forks as stars, J-Space-Cognition-Suite 7%. claude-mem was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (ai, ai-agents, claude-code), 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 | J-Space-Cognition-Suite | |
|---|---|---|
| GitHub stars | ★ 94K | ★ 3.0K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-09-19 | 2026-09-14 |
| Forks | ⑂ 8.3K | ⑂ 222 |
| 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 J-Space-Cognition-Suite if
- You want the J-Space-Cognition-Suite 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 J-Space-Cognition-Suite 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 J-Space-Cognition-Suite
J Space Cognition Suite is a model agnostic, inference time control suite for deep reasoning, long horizon work, verification, and recovery, delivered as one installable skill for a host agent and built for engineers running serious multi step projects.
read the full J-Space-Cognition-Suite overview →
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Frequently asked questions
Is claude-mem or J-Space-Cognition-Suite more popular?
claude-mem has 94,286 GitHub stars and J-Space-Cognition-Suite has 3,011. claude-mem has the larger community by that measure.
Are claude-mem and J-Space-Cognition-Suite free?
Both are open source. claude-mem is licensed under Apache-2.0 and J-Space-Cognition-Suite under Apache-2.0. Neither carries a licence fee.
What is the difference between claude-mem and J-Space-Cognition-Suite?
claude-mem is written in TypeScript and J-Space-Cognition-Suite 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 J-Space-Cognition-Suite?
Choose claude-mem if you want the larger community (94,286 stars) or its Apache-2.0 licence terms. Choose J-Space-Cognition-Suite if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.