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Alternatives

Products that do what QuiGuard does

Selfhosted proxy; scrubs secrets from AI Agent tool calls.

  1. 1
    Proxy 1.0718

    Your AI Assistant that actually gets things done

    2025 · convergence.ai

  2. 2
    CtrlAI104

    Transparent proxy that secures AI agents with guardrails

    Mar 2026 · github.com

  3. 3

    The AI-Powered Antivirus for AI Agents

    Mar 2026 · clawsecure.ai

  4. 4
    Guard371

    An AI that reads privacy policies for you

    2019

  5. 5AA

    Your AI agent hits an infinite loop and racks up $2000 in API charges overnight. This happens weekly to AI developers. AgentGuard monitors API calls in real-time and automatically kills your process when it hits your budget limit. How it works: Add 2 lines to any AI project: const agentGuard = require('agent-guard'); await agentGuard.init({ limit: 50 }); // $50 budget // Your existing code runs unchanged const response = await openai.chat.completions.create({...}); // AgentGuard tracks costs automatically When your code hits $50 in API costs, AgentGuard stops…

    2025 · github.com

  6. 6

    Block prompt inject & cut token costs for AI browser agents

    Jun 2026 · github.com

  7. 7AA

    Hey HN! This is Adil, Salman and Jose and and we’re behind archgw [1]. An intelligent proxy server designed as an edge and AI gateway for agents - one that natively know how to handle prompts, not just network traffic. We’ve made several sweeping changes so sharing the project again. A bit of background on why we’ve built this project. Building AI agent demos is easy, but to create something production-ready there is a lot of repeat low-level plumbing work that everyone is doing. You’re applying guardrails to make sure unsafe or off-topic requests don’t get through. You’re clarifying vague…

    2025 · github.com

  8. 8

    Scans AI agent skills for malicious code

    11d ago · github.com

  9. 9

    The only way to go fast is full YOLO mode in your coding agent. I've got the local sandbox figured out (pro tip: Incus VMs work great) but I wanted to keep my agents from doing things like inadvertently blowing up my cloud services or chasing a prompt to POST to some random website. I struggle most with this on my side projects where my permission model isn't quite as robust as it is at the office. I started with a firewall on the Incus container but every time the agent needed access to something new, I was poking more holes in it - and it didn't differentiate between HTTP verbs. I've been…

    Jul 2026 · trollbridge.dev

  10. 10

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

    Dec 2025

  11. 11

    Open source scanner for cross-tenant AI-agent security bugs

    13d ago · github.com

  12. 12

    Open-source malware scanner and runtime guard for AI agents

    Jul 2026 · panguard.ai

  13. 13OS

    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

  14. 14

    AI writes code. ScopeGuard keeps it aligned.

    Jun 2026 · github.com

  15. 15

    Self-hosted AI proxy. Your data never leaves your network.

    Jul 2026 · tokenveil.eu

  16. 16
    GitHub2

    Local sensitive data & API key blocker for ChatGPT.

    Jun 2026 · github.com

  17. 17IM
  18. 18

    Beyond Scanners: Real Security for LLM Apps

    Dec 2025

  19. 19

    Runtime API enforcement for AI agents

    Dec 2025

  20. 20MA

    Hi HN! We are excited to show you modguard - a Python tool we built to enforce a modular, decoupled package architecture. We built modguard to solve a recurring problem that we've experienced on software teams - code sprawl. Over time, cross-module imports would tightly couple together what used to be independent domains, and eventually create "balls of mud". This made it harder to test, and harder to make changes. Mis-use of modules which were intended to be private would then degrade performance and even cause security incidents. This would happen for a variety of reasons: - Junior…

    2024 · github.com

  21. 21

    Stop rogue AI agents from deleting production

    27d ago · grimdall.site

  22. 22

    Self-hosted LLM guard — auditable blocks, not scores

    Jul 2026 · insightits.com

  23. 23

    Automated red-teaming & real-time firewall for AI agents

    Mar 2026 · fullcourtdefense.ai

  24. 24

    Detect Security Threats in Agent Skills

    Jan 2026 · skillgaurd.up.railway.app

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