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  1. 1SA

    Alright so if you run a self-hosted blog, you've probably noticed AI companies scraping it for training data. And not just a little (RIP to your server bill). There isn't much you can do about it without cloudflare. These companies ignore robots.txt, and you're competing with teams with more resources than you. It's you vs the MJs of programming, you're not going to win. But there is a solution. Now I'm not going to say it's a great solution...but a solution is a solution. If your website contains content that will trigger their scraper's safeguards, it will get dropped from their data…

    Dec 2025 · github.com

  2. 2

    The AI-Powered Antivirus for AI Agents

    Mar 2026 · clawsecure.ai

  3. 3
    Qursor321

    Point at any UI to send exact context to your AI

    Jun 2026 · qursor.xyz

  4. 4OS

    Hi HN, I forked chromium and built agent-browser-protocol (ABP) after noticing that most browser-agent failures aren’t really about the model misunderstanding the page. Instead, the problem is that the model is reasoning from a stale state. ABP is designed to keep the acting agent synchronized with the browser at every step. After each action (click, type, etc), it freezes JavaScript execution and rendering, then captures the resulting state. It also compiles the notable events that occurred during that action loop, such as navigation, file pickers, permission prompts, alerts, and downloads,…

    Mar 2026 · github.com

  5. 5

    Block prompt inject & cut token costs for AI browser agents

    Jun 2026 · github.com

  6. 6

    Control your website traffic with click and block technology

    2017

  7. 7

    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

    2023

  8. 8
    CtrlAI104

    Transparent proxy that secures AI agents with guardrails

    Mar 2026 · github.com

  9. 9CH

    There is a growing number of companies offering anti-bot protection SaaS to protect websites from scraping by automated bots based on Puppeteer/Selenium. Most of them rely on browser properties such as headers, javascript properties (window., navigator.), behavior analysis, to build device/user fingerprints and match it against a database of "whitelisted" fingerprints (typical user behavior/settings/device props etc). For the past few months, together with two other devs I have worked on a customized Puppeteer/Playwright scraping backend. It's essentially a drop-in…

    2021

  10. 10

    Real-time compliance & security validation for AI coding

    Dec 2025 · aivory.net

  11. 11SA

    Built StopX after struggling with the limitations of traditional blocklist-based filters. Most existing solutions rely on static URL databases that are constantly outdated and easily bypassed. Our approach uses proprietary WebShield™ technology that combines: Real-time AI image recognition for visual content analysis Contextual URL pattern matching beyond simple domain blocking Cross-device synchronization with encrypted settings sync Military-grade bypass protection with stealth mode operation The interesting technical challenge was achieving 99.7% accuracy while maintaining sub-100ms…

    2025 · stopx.today

  12. 12AO

    This is a small PoC Python project for web server access logs analyzing to classify and dynamically block bad bots, such as L7 (application-level) DDoS bots, web scrappers and so on. We'll be happy to gather initial feedback on usability and features, especialy from people having good or bad experience wit bots. *Requirements* The analyzer relies on 3 Tempesta FW specific features which you still can get with other HTTP servers or accelerators: 1. JA5 client fingerprinting (https://tempesta-tech.com/knowledge-base/Traffic-Filtering-b...). This is a HTTP and TLS layers…

    Oct 2025 · github.com

  13. 13FL

    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

  14. 14AA

    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

  15. 15

    Check if AI search can actually read and cite your site

    20d ago · seo.codequest.work

  16. 16

    Anonymize client docs before you paste them into AI

    Jul 2026 · promptshield.ca

  17. 17

    Website protection & CMS protection

    Nov 2025

  18. 18

    The stealth browser engine for scrapers and AI agents

    Jul 2026 · github.com

  19. 19CP

    Hi HN, I built CountermarkAI, a lightweight anti-scraping & bot-detection tool for content creators and website owners. It’s designed to help protect your work from unauthorized scraping and AI training, that repurposed your work without permission. How It Works: Use Hashtag – Creators add a unique hashtag to their content as a declaration of ownership. Protect Website – For those running your own sites, simply add a small snippet to your . The protect.js script works asynchronously by sending metadata from every page load back to our servers, logging requests, and flagging known AI-training…

    2025 · countermarkai.com

  20. 20

    AI firewall for LLM calls, MCP tools, and agentic workflows

    Jul 2026 · argusai-tau.vercel.app

  21. 21

    100% stable headless browser kit for AI Agents(Linux, macOS)

    Jun 2026 · github.com

  22. 22

    AI-powered phishing detection for safer browsing

    Jun 2026 · chromewebstore.google.com

  23. 23

    Smart WAF for everyone. Block threats before they hit.

    Jun 2026 · picteto.cl

  24. 24

    Automated Threat Detection & IP Blocking

    Nov 2025 · cyberlynk.in

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