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AI · alternatives · 2026

24 alternatives to AI Security Guard

Firewall for AI agents. Scan before you trust.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    Guard▲373

    An AI that reads privacy policies for you

    2019 · its alternatives →

  2. 2

    The AI-Powered Antivirus for AI Agents

    Mar 2026 · clawsecure.ai · its alternatives →

  3. 3
    HOL Guard▲106

    The 1st Firewall for AI Agents

    Jul 2026 · hol.org · its alternatives →

  4. 4

    The firewall for AI agents. Block dangerous commands

    Dec 2025 · mcp-shield.vercel.app · its alternatives →

  5. 5

    Scan AI agent Skills for risks before you install them

    16d ago · agentguard-sigma-five.vercel.app · its alternatives →

  6. 6

    Real-time compliance & security validation for AI coding

    Dec 2025 · aivory.net · its alternatives →

  7. 7

    Local security & compliance scanner for AI agents

    Jul 2026 · safeclaude.net · its alternatives →

  8. 8

    Hi HN, MCP Defender is an open source desktop app that automatically proxies your MCP traffic in AI apps like Cursor, Claude, Windsurf and VSCode. It then scans all requests and responses between the apps and the MCP tools they call. If it detects anything malicious, it alerts you and lets you allow or block the tool call. While the threat landscape of MCP is still being actively researched, there are dangerous things that MCP Defender can block today. For example, a developer asks Cursor to fix a Github issue with an attached crash log. However, the Github issue was created by an attacker…

    2025 · mcpdefender.com · its alternatives →

  9. 9
    Astra▲116

    Make AI agents that never see your data

    Apr 2026 · its alternatives →

  10. 10
    CtrlAI▲104

    Transparent proxy that secures AI agents with guardrails

    Mar 2026 · github.com · its alternatives →

  11. 11
    0xAudit▲110

    The security layer for AI agents to scan, fix verify via MCP

    Feb 2026 · 0-x-audit.com · its alternatives →

  12. 12

    Runtime firewall for AI coding agents.

    Aug 2026 · contextfence.dev · its alternatives →

  13. 13

    Open-source malware scanner and runtime guard for AI agents

    Jul 2026 · panguard.ai · its alternatives →

  14. 14

    Project AI agents from unsafe actions before they execute.

    Aug 2026 · agentfirewall.launchreadyal.com · its alternatives →

  15. 15FL

    Hi HN! We just launched Codacy Guardrails, an IDE extension with a CLI for code analysis and MCP server that enforces security & quality rules on AI-generated code in real-time. It hooks into AI coding assistants (like VS Code Agent Mode, Cursor, Windsurf), silently scanning and fixing AI-suggested code that has vulnerabilities or violates your coding standards, while the code it’s being generated. We built this because coding agents can be a double-edged sword. They do boost productivity, but can easily introduce insecure or non-compliant code. One recent research team at NYU found that 40%…

    2025 · its alternatives →

  16. 16

    AI Risk & Compliance Monitoring, On Autopilot.

    2025 · ai-guard-copilot.com · its alternatives →

  17. 17

    Security firewall for AI agents. Cloudflare for MCP.

    Feb 2026 · agent-wall.github.io · its alternatives →

  18. 18

    Scans AI agent skills for malicious code

    Aug 2026 · github.com · its alternatives →

  19. 19

    Insights, risk assessments, and plain-English summaries

    2025 · contractguardai.blueorangelabs.com · its alternatives →

  20. 20

    The AI agent firewall: catches hijacks that pass every rule

    Jul 2026 · agentguard-dusky.vercel.app · its alternatives →

  21. 21

    Your agent team, on your machine. Open-source harness for multi-user Claude agents. - yaodub/cast

    Jun 2026 · github.com · its alternatives →

  22. 22

    Scan your dev machine for AI agents, MCP servers, IDE extensions, and suspicious packages - in seconds. - step-security/dev-machine-guard

    Mar 2026 · github.com · its alternatives →

  23. 23

    The security gateway for AI agents | identity, policy, audit

    Jun 2026 · axiorank.com · its alternatives →

  24. 24

    As a Security Engineer with over 10+ years in industry, I kept running into the same problem with coding agents: Instructions are not guarantees. I put guidance in `CLAUDE.md`, `AGENTS.md`, memory files, MCP descriptions, and tool documentation. I explicitly told the agent things like: - Use the code graph for architecture questions instead of grepping the repository. - Do not use deprecated APIs or Unsafe code. - Prefer specific tools for specific tasks. The agent would still ignore those instructions surprisingly often. It would grep the entire repo, use deprecated APIs, or choose a slower…

    Apr 2026 · sigmashake.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →