--- title: "claude-mem vs fast-llm-security-guardrails" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/thedotmack-claude-mem-vs-zenguard-ai-fast-llm-security-guardrails" tools: ["thedotmack-claude-mem", "zenguard-ai-fast-llm-security-guardrails"] --- # claude-mem vs fast-llm-security-guardrails *GraphCanon updated Jul 15, 2026* ## Verdict Pick claude-mem when claude-mem is primarily JavaScript; fast-llm-security-guardrails is Python; pick fast-llm-security-guardrails when fast-llm-security-guardrails is primarily Python; claude-mem is JavaScript. [claude-mem](https://claude-mem.ai) reports 87k GitHub stars, 7.5k forks, and 252 open issues, last pushed Jul 9, 2026. [fast-llm-security-guardrails](https://zenguard.ai/) has 153 stars, 20 forks, and 0 open issues, last pushed Feb 3, 2026. Figures are from public GitHub metadata via [claude-mem's repository](https://github.com/thedotmack/claude-mem) and [fast-llm-security-guardrails's repository](https://github.com/ZenGuard-AI/fast-llm-security-guardrails). | | [claude-mem](/tools/thedotmack-claude-mem.md) | [fast-llm-security-guardrails](/tools/zenguard-ai-fast-llm-security-guardrails.md) | | --- | --- | --- | | Tagline | Persistent Context Across Sessions for Every Agent | The fastest Trust Layer for AI Agents | | Stars | 86,816 | 153 | | Forks | 7,500 | 20 | | Open issues | 252 | 0 | | Language | JavaScript | Python | | Adopt for | claude-mem provides persistent context across sessions, leveraging AI to capture and compress agent activity. | - | | Persona | - | - | | Runtime | - | - | | License | Claude-Mem is distributed under the Apache License 2.0, allowing it to be freely used in a variety of development and production environments while maintaining clear licensing terms. | MIT | | Categories | AI Agents, Inference & Serving | AI Agents, Inference & Serving, LLM Frameworks | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [claude-mem](/tools/thedotmack-claude-mem.md) | [fast-llm-security-guardrails](/tools/zenguard-ai-fast-llm-security-guardrails.md) | | --- | --- | --- | | Maintenance | Very active (96%) | Slowing (36%) | | Days since push | 1d | 161d | | Open issues (now) | 252 | 0 | | Owner type | User | Organization | | Full report | [trust report](/tools/thedotmack-claude-mem/trust.md) | [trust report](/tools/zenguard-ai-fast-llm-security-guardrails/trust.md) | ## Shared compatibility - **Python**: [claude-mem](/tools/thedotmack-claude-mem.md) - Python runtime; [fast-llm-security-guardrails](/tools/zenguard-ai-fast-llm-security-guardrails.md) - Python runtime ## Decision facts: claude-mem - **Requirements:** Requires Node.js v20.0.0 or higher.; Must have the latest version of Claude Code with plugin support.; Auto-installs Bun (JavaScript runtime and process manager) if not already present.; Requires uv (Python package for vector search), auto-installation supported. - **Adopt for:** claude-mem provides persistent context across sessions, leveraging AI to capture and compress agent activity. - **License detail:** Claude-Mem is distributed under the Apache License 2.0, allowing it to be freely used in a variety of development and production environments while maintaining clear licensing terms. ## Choose when ### Choose claude-mem if… - claude-mem is primarily JavaScript; fast-llm-security-guardrails is Python. - License: claude-mem is Apache-2.0, fast-llm-security-guardrails is MIT. - Requirements: Requires Node.js v20.0.0 or higher.; Must have the latest version of Claude Code with plugin support.; Auto-installs Bun (JavaScript runtime and process manager) if not already present.; Requires uv (Python package for vector search), auto-installation supported.. - Tags unique to claude-mem: ai-memory, chromadb, claude, long-term-memory. - When you require seamless and persistent context continuity between different session interactions with Claude Code or other supported agents. ### Choose fast-llm-security-guardrails if… - fast-llm-security-guardrails is primarily Python; claude-mem is JavaScript. - License: fast-llm-security-guardrails is MIT, claude-mem is Apache-2.0. - Tags unique to fast-llm-security-guardrails: agentic-ai, ai-agent, ai-runtime, cx-agent. - Also covers LLM Frameworks. ## When NOT to use claude-mem - When working in environments where Node.js v20.0.0 or higher cannot be installed, as claude-mem requires this version to operate. - If your specific AI agent or tool does not integrate with the supported frameworks listed (e.g., Claude Code, OpenClaw), making context persistence ineffective for your workflow. ## When NOT to use fast-llm-security-guardrails - Last GitHub push was 161 days ago (slowing maintenance, Feb 3, 2026). Validate activity before betting a new project on fast-llm-security-guardrails. - AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism. - Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. - LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. ## Common questions ### What is the difference between claude-mem and fast-llm-security-guardrails? claude-mem: Persistent Context Across Sessions for Every Agent. fast-llm-security-guardrails: The fastest Trust Layer for AI Agents. See the comparison table for live GitHub stats and shared categories. ### When should I choose claude-mem over fast-llm-security-guardrails? Choose claude-mem over fast-llm-security-guardrails when claude-mem is primarily JavaScript; fast-llm-security-guardrails is Python; License: claude-mem is Apache-2.0, fast-llm-security-guardrails is MIT; Requirements: Requires Node.js v20.0.0 or higher.; Must have the latest version of Claude Code with plugin support.; Auto-installs Bun (JavaScript runtime and process manager) if not already present.; Requires uv (Python package for vector search), auto-installation supported.; Tags unique to claude-mem: ai-memory, chromadb, claude, long-term-memory; When you require seamless and persistent context continuity between different session interactions with Claude Code or other supported agents. ### When should I choose fast-llm-security-guardrails over claude-mem? Choose fast-llm-security-guardrails over claude-mem when fast-llm-security-guardrails is primarily Python; claude-mem is JavaScript; License: fast-llm-security-guardrails is MIT, claude-mem is Apache-2.0; Tags unique to fast-llm-security-guardrails: agentic-ai, ai-agent, ai-runtime, cx-agent; Also covers LLM Frameworks. ### When should I avoid claude-mem? When working in environments where Node.js v20.0.0 or higher cannot be installed, as claude-mem requires this version to operate. If your specific AI agent or tool does not integrate with the supported frameworks listed (e.g., Claude Code, OpenClaw), making context persistence ineffective for your workflow. ### When should I avoid fast-llm-security-guardrails? Last GitHub push was 161 days ago (slowing maintenance, Feb 3, 2026). Validate activity before betting a new project on fast-llm-security-guardrails. AI Agents: Don't use an agent loop when a deterministic workflow would do; agents add latency, cost, and non-determinism. Inference & Serving: Self-hosting rarely beats a hosted API on cost until you have steady, high-volume traffic. LLM Frameworks: Avoid a framework for a single prompt-and-retrieve call; the abstraction can cost more than it saves. ### Is claude-mem or fast-llm-security-guardrails more popular on GitHub? claude-mem has more GitHub stars (86,816 vs 153). Stars measure visibility, not whether either tool fits your constraints. ### Are claude-mem and fast-llm-security-guardrails open source? Yes - both are open-source projects on GitHub (claude-mem: Apache-2.0, fast-llm-security-guardrails: MIT). ### Where can I find alternatives to claude-mem or fast-llm-security-guardrails? GraphCanon lists graph-backed alternatives at [claude-mem alternatives](/tools/thedotmack-claude-mem/alternatives) and [fast-llm-security-guardrails alternatives](/tools/zenguard-ai-fast-llm-security-guardrails/alternatives) ([claude-mem markdown twin](/tools/thedotmack-claude-mem/alternatives.md), [fast-llm-security-guardrails markdown twin](/tools/zenguard-ai-fast-llm-security-guardrails/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/thedotmack-claude-mem-vs-zenguard-ai-fast-llm-security-guardrails.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, claude-mem or fast-llm-security-guardrails? claude-mem: Very active. fast-llm-security-guardrails: Slowing. 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 claude-mem and fast-llm-security-guardrails? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [claude-mem trust report](/tools/thedotmack-claude-mem/trust); [fast-llm-security-guardrails trust report](/tools/zenguard-ai-fast-llm-security-guardrails/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=thedotmack-claude-mem`](/api/graphcanon/graph?tool=thedotmack-claude-mem) - 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/_