8 Best PentAGI Alternatives in 2026 (Open Source)
PentAGI — Fully autonomous AI Agents system capable of performing complex penetration testing tasks. Combines autonomous AI agents with professional penetration testing capabilities in fully isolated Docker environments.
Short answer
- Closest match to PentAGI: HexStrike AI MCP Agents.
- Most actively developed: Promptfoo (913 commits in the last 90 days).
- Fastest growing: Anthropic-Cybersecurity-Skills (+1,275 GitHub stars in the last 30 days).
- No commit in 6+ months: agentic-radar, SuperAGI and AI Legion.
These 8 open-source tools do the same job. They are ordered by how closely they match PentAGI, with live GitHub data so you can see which projects are actively maintained.
| Tool | GitHub stars | Stars / 30d | Last commit |
|---|---|---|---|
| PentAGI(original) | 25.2k | +765 | 2026-10-02 |
| HexStrike AI MCP Agents | 12.3k | +285 | 2026-08-03 |
| Anthropic-Cybersecurity-Skills | 33.7k | +1,275 | 2026-08-31 |
| agentic-radar | 1.1k | +20 | 2025-11-27 |
| Promptfoo | 25.6k | +1,112 | 2026-10-02 |
| docker-android | 15.9k | +120 | 2026-10-02 |
| SuperAGI | 17.7k | +57 | 2025-01-22 |
| Agno | 42.5k | +1,185 | 2026-10-02 |
| AI Legion | 1.4k | +1 | 2025-05-27 |
1. HexStrike AI MCP Agents
MCP server for AI agents to run 150+ cybersecurity tools for pentesting and vulnerability discovery
What sets it apart: Specialized MCP server focused exclusively on cybersecurity tool integration for AI agents.
Best for: AI-powered penetration testing; bug bounty automation; security research automation
2. Anthropic-Cybersecurity-Skills
Open-source collection of 818 cybersecurity skills for AI agents, mapped to six frameworks
What sets it apart: The largest open-source library of cybersecurity skills specifically structured for integration into AI agents.
Best for: Enhancing AI agents with cybersecurity knowledge; Security research and authorized penetration testing simulations; Educational purposes in cybersecurity
3. agentic-radar
A security scanner for your LLM agentic workflows
What sets it apart: The first dedicated security scanner specifically designed for agentic AI workflows, combining static analysis with runtime adversarial testing and automatic prompt hardening — no other tool maps agent vulnerabilities to OWASP AI security frameworks
Best for: Security teams auditing agentic AI systems before production deployment; DevOps teams integrating AI security scanning into CI/CD pipelines
4. Promptfoo
Open-source CLI and library for evaluating and red-teaming prompts, agents, RAG systems, and LLM apps
What sets it apart: Unlike LangSmith (production observability) or Langfuse (logging), promptfoo is the only open-source tool combining eval + red teaming + CI/CD code scanning — now backed by OpenAI while remaining fully MIT-licensed
Best for: Teams hardening LLM apps against prompt injection and jailbreaks with automated red teaming; Engineering teams adding LLM eval regression tests to CI/CD pipelines
5. docker-android
Android in docker solution with noVNC supported, video recording, mcp server and AI-agent
What sets it apart: Combines containerized Android emulation with MCP server and AI-agent capabilities for automated testing workflows.
Best for: Android app testing automation; CI/CD pipeline integration; Agent-based mobile testing
6. SuperAGI
<⚡️> SuperAGI - A dev-first open source autonomous AI agent framework. Enabling developers to build, manage & run useful autonomous agents quickly and reliably.
What sets it apart: Unlike code-only agent frameworks, SuperAGI provides a full GUI with marketplace, action console, and concurrent agent management out of the box — the most visually-oriented open-source agent platform with one-click tool installation
Best for: Developers wanting a GUI-based autonomous agent platform with pre-built tool integrations; Teams needing concurrent multi-agent execution with built-in monitoring and token optimization
7. Agno
Build, run, and manage agent platforms.
What sets it apart: Provides complete framework and runtime to own and control the entire agent platform stack with data isolation and security.
Best for: Teams wanting to own their agent stack; Building production agent platforms; Maintaining control over data and security
8. AI Legion
An LLM-powered autonomous agent platform
What sets it apart: Multi-agent platform where autonomous LLM agents with persistent memory collaborate through console interaction, learning from their own mistakes
Best for: multi-agent-experimentation; exploring-agent-self-organization; autonomous-task-delegation
FAQ
- What are the best alternatives to PentAGI?
- The closest open-source alternatives to PentAGI are HexStrike AI MCP Agents, Anthropic-Cybersecurity-Skills and agentic-radar, followed by Promptfoo, docker-android and SuperAGI. They are ranked by how closely they match what PentAGI does.
- Which PentAGI alternative is the most popular?
- Agno has the most GitHub stars among PentAGI alternatives, with 42,495 stars.
- Which PentAGI alternative is the most actively maintained?
- By recent activity, Promptfoo (913 commits in the last 90 days) is the most actively developed alternative.