12 agents tracked · Open-source-first, with limited public GitHub comparators · Ranked by trust score · Updated 2026-07-15 03:00 UTC
HVTracker independently evaluates 12 security & guardrails using daily signals from GitHub, package registries, and security databases. The category is open-source-first, with a limited set of public GitHub-hosted proprietary or source-available comparators when they are important ecosystem reference points. Each agent is scored on activity, adoption, transparency, safety, and identity. The top-ranked security & guardrails is Guardrails AI with a trust score of 82.8/100 (Grade A). Other leading projects include NeMo Guardrails and SkillSpector.
| # | Agent | Trust | Stars | Language |
|---|---|---|---|---|
| 1 | Guardrails AI A Listed Adding guardrails to large language models. | 82.8 | 7.1k | Python |
| 2 | NeMo Guardrails B Listed NeMo Guardrails is an open-source toolkit for easily adding programmable guardrails to LLM-based conversational systems. | 71.2 | 6.7k | Python |
| 3 | SkillSpector B Listed Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, and security risks. | 65.3 | 13.2k | Python |
| 4 | Garak C Listed the LLM vulnerability scanner | 58.1 | 8.4k | Python |
| 5 | LLM Guard C Needs review The Security Toolkit for LLM Interactions | 57.9 | 3.2k | Python |
| 6 | PentestAgent C Listed PentestAgent is an AI agent framework for black-box security testing, supporting bug bounty, red-team, and penetration t | 55.8 | 2.8k | Python |
| 7 | Deepsec C Listed Deepsec is a security harness for finding vulnerabilities in your codebase powered by coding agents | 55.8 | 5.2k | TypeScript |
| 8 | PentAGI C Listed Fully autonomous AI Agents system capable of performing complex penetration testing tasks | 52.6 | 20.6k | Go |
| 9 | Llama Guard C Listed Set of tools to assess and improve LLM security. | 51.3 | 4.3k | Python |
| 10 | Agentic Security C Listed Agentic LLM Vulnerability Scanner / AI red teaming kit 🧪 | 51.3 | 1.9k | Python |
| 11 | HexStrike AI D Listed HexStrike AI MCP Agents is an advanced MCP server that lets AI agents (Claude, GPT, Copilot, etc.) autonomously run 150+ | 40.7 | 10.3k | Python |
| 12 | Snyk Agent Scan D Listed Security scanner for AI agents, MCP servers and agent skills. | 27.3 | 2.8k | Python |