--- title: "memory-os vs kronotop" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/claudiodrews-memory-os-vs-kronotop-kronotop" tools: ["claudiodrews-memory-os", "kronotop-kronotop"] --- # memory-os vs kronotop *GraphCanon updated Jul 12, 2026* ## Verdict Pick memory-os when memory-os is primarily Python; kronotop is Java; pick kronotop when kronotop is primarily Java; memory-os is Python. [memory-os](https://github.com/ClaudioDrews/memory-os) reports 1.3k GitHub stars, 119 forks, and 7 open issues, last pushed Jun 10, 2026. [kronotop](https://kronotop.com) has 300 stars, 9 forks, and 3 open issues, last pushed Jul 8, 2026. Figures are from public GitHub metadata via [memory-os's repository](https://github.com/ClaudioDrews/memory-os) and [kronotop's repository](https://github.com/kronotop/kronotop). | | [memory-os](/tools/claudiodrews-memory-os.md) | [kronotop](/tools/kronotop-kronotop.md) | | --- | --- | --- | | Tagline | A 7-layer memory operating system for Hermes Agent with persistent memory and context injection | Distributed, transactional document database backed by FoundationDB. | | Stars | 1,254 | 300 | | Forks | 119 | 9 | | Open issues | 7 | 3 | | Language | Python | Java | | Adopt for | Memory-OS is a memory operating system tailored for Hermes Agent, focusing on local-first, self-hosted persistent storage and seamless integration with any LLM provider using Qdrant as the vector database. | - | | Persona | - | - | | Runtime | - | - | | License | MIT | Apache-2.0 | | Categories | AI Agents, Vector Databases | AI Agents, Vector Databases | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [memory-os](/tools/claudiodrews-memory-os.md) | [kronotop](/tools/kronotop-kronotop.md) | | --- | --- | --- | | Maintenance | Steady (60%) | Very active (96%) | | Days since push | 31d | 2d | | Open issues (now) | 7 | 3 | | Owner type | User | Organization | | Full report | [trust report](/tools/claudiodrews-memory-os/trust.md) | [trust report](/tools/kronotop-kronotop/trust.md) | ## Decision facts: memory-os - **Adopt for:** Memory-OS is a memory operating system tailored for Hermes Agent, focusing on local-first, self-hosted persistent storage and seamless integration with any LLM provider using Qdrant as the vector database. ## Choose when ### Choose memory-os if… - memory-os is primarily Python; kronotop is Java. - License: memory-os is MIT, kronotop is Apache-2.0. - Tags unique to memory-os: context-injection, docker, ground-truth, hermes-agent. - - You are working with Hermes Agent and require a sophisticated memory management solution that operates locally. ### Choose kronotop if… - kronotop is primarily Java; memory-os is Python. - License: kronotop is Apache-2.0, memory-os is MIT. - Tags unique to kronotop: acid, ai-agents, database, distributed-database. ## When NOT to use memory-os - - If you are looking for a completely cloud-managed service without any local setup or maintenance needs. - - Your use case does not align with Hermes Agent; Memory-OS is specifically designed to complement this agent's functions and won't provide the same benefits when used independently. ## When NOT to use kronotop - AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism. - Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ## Common questions ### What is the difference between memory-os and kronotop? memory-os: A 7-layer memory operating system for Hermes Agent with persistent memory and context injection. kronotop: Distributed, transactional document database backed by FoundationDB.. See the comparison table for live GitHub stats and shared categories. ### When should I choose memory-os over kronotop? Choose memory-os over kronotop when memory-os is primarily Python; kronotop is Java; License: memory-os is MIT, kronotop is Apache-2.0; Tags unique to memory-os: context-injection, docker, ground-truth, hermes-agent; - You are working with Hermes Agent and require a sophisticated memory management solution that operates locally. ### When should I choose kronotop over memory-os? Choose kronotop over memory-os when kronotop is primarily Java; memory-os is Python; License: kronotop is Apache-2.0, memory-os is MIT; Tags unique to kronotop: acid, ai-agents, database, distributed-database. ### When should I avoid memory-os? - If you are looking for a completely cloud-managed service without any local setup or maintenance needs. - Your use case does not align with Hermes Agent; Memory-OS is specifically designed to complement this agent's functions and won't provide the same benefits when used independently. ### When should I avoid kronotop? AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism. Vector Databases: Don't reach for a dedicated vector DB under ~100k vectors; pgvector on your existing Postgres is simpler to operate. ### Is memory-os or kronotop more popular on GitHub? memory-os has more GitHub stars (1,254 vs 300). Stars measure visibility, not whether either tool fits your constraints. ### Are memory-os and kronotop open source? Yes - both are open-source projects on GitHub (memory-os: MIT, kronotop: Apache-2.0). ### Where can I find alternatives to memory-os or kronotop? GraphCanon lists graph-backed alternatives at [memory-os alternatives](/tools/claudiodrews-memory-os/alternatives) and [kronotop alternatives](/tools/kronotop-kronotop/alternatives) ([memory-os markdown twin](/tools/claudiodrews-memory-os/alternatives.md), [kronotop markdown twin](/tools/kronotop-kronotop/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/claudiodrews-memory-os-vs-kronotop-kronotop.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, memory-os or kronotop? memory-os: Steady. kronotop: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for memory-os and kronotop? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [memory-os trust report](/tools/claudiodrews-memory-os/trust); [kronotop trust report](/tools/kronotop-kronotop/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=claudiodrews-memory-os`](/api/graphcanon/graph?tool=claudiodrews-memory-os) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_