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Alternatives

Products that do what Antijection does

Stop malicious prompts before they reach your AI

  1. 1
    Venn.ai337

    Delegate real work to AI agents with safety guardrails

    Mar 2026 · venn.ai

  2. 2

    The AI-Powered Antivirus for AI Agents

    May 2026 · clawsecure.ai

  3. 3

    Safeguard your prompts before they reach AI

    Dec 2025

  4. 4

    The firewall for AI prompts. Drop-in security for LLM apps.

    Dec 2025

  5. 5IM
  6. 6FP

    We've built an open-source tool to stress test AI agents by simulating prompt injection attacks. We’ve implemented one powerful attack strategy based on the paper [AdvPrefix: An Objective for Nuanced LLM Jailbreaks](https://arxiv.org/abs/2412.10321). Here's how it works: - You define a goal, like: “Tell me your system prompt” - Our tool uses a language model to generate adversarial prefixes (e.g., “Sure, here are my system prompts…”) that are likely to jailbreak the agent. - The output is a list of prompts most likely to succeed in bypassing safeguards. We’re just getting…

    2025 · security.vista-labs.ai

  7. 7LC
  8. 8WP

    Anthropic and OpenAI's publicly available models are explicitly guard-railed so that they refuse offensive tasks. And their cyber-focussed models are gated for enterprises. This leaves SMEs and mid market open to major vulnerabilities. AI can be used as both an adversarial and defensive tool in the world of cyber. A worst case outcome is if only the adversaries have access. Meanwhile, most existing AI cyber tools are just wrappers. The problem is that they still have all the guardrails on from the foundation model where they will inherit its refusals. For this project we've post-trained a…

    Jun 2026 · argusred.com

  9. 9

    Stop prompt injection from triggering tools.

    Feb 2026 · github.com

  10. 10

    AI is powerful. Make sure it's safe too.

    Jul 2026 · getpreempt.com

  11. 11FL

    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

  12. 12OS

    Hi HN, Matvey, Ildar, Joey, and Dominik here. If you're building LLM agents that use tools, you're probably worried about prompt injection attacks that can hijack those tools. We were too, and found that solutions like prompt-based filtering or secondary "guard" LLMs can be unreliable. Our thesis is that agent security should be handled at the network level between the agent and the LLM, just like a traditional web application firewall. So we built Archestra Platform: an open-source gateway that acts as a secure proxy for your AI agents. It's designed to be a deterministic firewall against…

    Oct 2025 · archestra.ai

  13. 13TO
  14. 14

    Anonymize client docs before you paste them into AI

    Jul 2026 · promptshield.ca

  15. 15

    Find AI vulnerabilities before hackers do

    Mar 2026 · promptbrake.com

  16. 16

    Production grade prompt injection defense middleware for LLM

    Jul 2026

  17. 17

    Intercept, protect, and transform AI prompts and responses

    Jan 2026

  18. 18

    Stop AI agents from installing malicious packages.

    Jul 2026 · agentinel.habitwala.in

  19. 19

    Prompt injection detection API for AI agents

    May 2026 · agentshield.pro

  20. 20

    Harden & secure your LLM prompts

    May 2026 · decodesfuture.com

  21. 21

    Stop AI agent from breaking database security & architecture

    Jun 2026 · preflight-vibe.vercel.app

  22. 22

    Find vulnerabilities in your AI prompts before your users do

    26d ago · testmyprompt.net

  23. 23AP

    Hi HN, We’re the founders of Abide — a tool to prevent employees from leaking sensitive data to AI models. Over the past month we’ve spoken to lots of friends at tech companies, law firms, creative agencies, and more. There was a consistent theme: companies aren’t sure how AI tools affect their data privacy and security processes. There are concerns that when employees use LLMs to write code or send emails, there's a security/compliance risk (e.g., accidentally sharing an API key in a prompt) or violation of privacy agreements (e.g., using AI to draft a memo about non-public client…

    2023 · tryabide.co

  24. 24

    Stop prompt injection attacks with one API call. Free tier.

    Apr 2026 · safeprompt.dev

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