Three Agent-Memory Repos Now Hold a Combined 211,000 Stars — claude-mem at 90,282, mem0 at 62,934, and MemPalace at 58,269

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The persistent-context layer has consolidated into three heavyweight repos rather than a long tail. thedotmack/claude-mem (90,282 stars) captures everything an agent does during a session, compresses it with a model, and re-injects the relevant slice into future sessions; mem0ai/mem0 (62,934) positions as a provider-agnostic 'universal memory layer'; and MemPalace/mempalace (58,269) leads on benchmarks and stays free, built on ChromaDB with MCP wiring. All three are attacking the same failure — that a session boundary wipes everything the agent learned — but with different persistence models, and no interchange format exists between them. For builders, that means memory is currently a lock-in decision, not a swappable component.