updated 2026-08-29 10:02 UTC

Security & Guardrails

21 agents tracked · Open-source-first, with limited public GitHub comparators · Ranked by trust score · Updated 2026-08-29 10:02 UTC

HVTracker independently evaluates 21 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 & guardrail is HOL Guard with a trust score of 87.7/100 (Grade A). Other leading projects include DvalinCode and Guardrails AI.

21
Agents
58
Avg Trust
110.8k
Total Stars
3
Grade A
1
Warnings
# Agent Trust Stars Language
1 HOL Guard A Listed Open-source antivirus for AI agents: block risky tools, secret access, prompt injection, malicious packages, MCP servers 87.7 497 Python
2 DvalinCode A Listed Independent security verification for code written by humans and AI agents. Scan, repair, then prove it — Dvalin runs yo 86.9 113 TypeScript
3 Guardrails AI A Listed Adding guardrails to large language models. 82.0 7.3k Python
4 REA B Listed Reverse engineer anything with agents, from app behavior down to native binaries. 79.9 385 TypeScript
5 NeMo Guardrails B Listed NeMo Guardrails is an open-source toolkit for easily adding programmable guardrails to LLM-based conversational systems. 72.4 7.0k Python
6 Snyk Agent Scan C Listed Security scanner for AI agents, MCP servers and agent skills. 64.3 3.0k Python
7 SkillSpector C Listed Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, security risks, prompt injection, data 61.8 15.2k Python
8 PentAGI C Listed Fully autonomous AI Agents system capable of performing complex penetration testing tasks 60.6 22.2k Go
9 Deepsec C Listed Deepsec is a security harness for finding vulnerabilities in your codebase powered by coding agents 59.7 7.8k TypeScript
10 Garak C Listed the LLM vulnerability scanner 58.7 9.1k Python
11 T3MP3ST C Listed autonomous red teaming platform; multi-agent offensive-security meta-harness 58.6 5.8k TypeScript
12 PentestAgent C Listed PentestAgent is an AI agent framework for black-box security testing, supporting bug bounty, red-team, and penetration t 56.1 3.0k Python
13 Agentic Security C Listed Agentic LLM Vulnerability Scanner / AI red teaming kit 🧪 54.7 2.0k Python
14 LLM Guard C Needs review The Security Toolkit for LLM Interactions 53.8 3.2k Python
15 Llama Guard C Listed Set of tools to assess and improve LLM security. 52.9 4.4k Python
16 pentest-ai C Listed Open-source AI pentester that proves every finding. Machine oracles re-run each exploit; verified bugs ship a proof caps 52.7 1.6k Python
17 HexStrike AI D Listed HexStrike AI MCP Agents is an advanced MCP server that lets AI agents (Claude, GPT, Copilot, etc.) autonomously run 150+ 45.6 11.4k Python
18 AutoCVE D Listed Agent-driven automated CVE discovery platform for source code auditing, vulnerability verification, and report generatio 45.3 1.3k Python
19 auto-re-agent D Listed Open-source AI reverse-engineering agent using Ghidra and LLMs to reconstruct and validate C/C++ functions from binaries 44.5 1.4k Python
20 CyberStrike D Listed Open-source AI-augmented offensive security harness. 13+ autonomous agents, 150+ LLM providers, 5,300+ models, 7,600+ Ed 24.5 2.1k TypeScript
21 open-kritt D Listed Open-source, self-hosted AI vulnerability research tool that orchestrates agents to find and validate security issues in 24.0 2.0k JavaScript

Grade = trust band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50 — methodology