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AI · alternatives · 2026

24 alternatives to BotGuard

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

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

    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 · its alternatives →

  2. 2
    HOL Guard▲106

    The 1st Firewall for AI Agents

    Jul 2026 · hol.org · its alternatives →

  3. 3

    Scan AI agent Skills for risks before you install them

    17d ago · agentguard-sigma-five.vercel.app · its alternatives →

  4. 4
    CtrlAI▲104

    Transparent proxy that secures AI agents with guardrails

    Mar 2026 · github.com · its alternatives →

  5. 5
    Foil▲83

    An AI agent that monitors your AI agents

    Mar 2026 · getfoil.ai · its alternatives →

  6. 6

    An AI agent rewriting your codebase looks like scrolling text in a terminal. Agent Monitor shows you what it

    Feb 2026 · agentmonitor.io · its alternatives →

  7. 7

    Every other gateway is detect-and-block. You don't get a security grade. You don't get red team in CI. We built the one that does. PromptGuard is a proxy: change your base URL (one line with our SDK, or a few lines without), and every request gets checked for prompt injection, PII leaks, jailbreaks, and abuse. 20+ threat vectors, 39+ PII types. We also ship a red team suite and an autonomous agent that mutates attacks to find bypasses - you get a grade (A-F) and a GitHub Action that runs these tests on every PR. So you see where you're weak before you ship. Works with OpenAI, Anthropic,…

    Dec 2025 · promptguard.co · its alternatives →

  8. 8

    Stop AI agents from installing malicious packages.

    Jul 2026 · agentinel.habitwala.in · its alternatives →

  9. 9

    We build runtime security for AI agents. The playground started as an internal tool that we used to test our own guardrails. But we kept finding the same types of vulnerabilities because we think about attacks a certain way. At some point you need people who don't think like you. So we open-sourced it. Each challenge is a live agent with real tools and a published system prompt. Whenever a challenge is over, the full winning conversation transcript and guardrail logs get documented publicly. Building the general-purpose agent itself was probably the most fun part. Getting it to reliably use…

    Mar 2026 · github.com · its alternatives →

  10. 10

    Scans AI agent skills for malicious code

    Aug 2026 · github.com · its alternatives →

  11. 11

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

    Jun 2026 · github.com · its alternatives →

  12. 12

    Stop leaking sensitive data to AI chatbots

    Feb 2026 · chromewebstore.google.com · its alternatives →

  13. 13

    Hey HN, AI agents are all the buzz right now, but how many of them are accessing your website today? That's what we built AgentShield to answer. Most of our users didn't know they had agent traffic until seeing them in our dashboard. You can see traffic broken down by humans, bots, and AI agents. Installation can be as simple as a JS pixel, and it's free. We're currently building out the paid component that will let you block specific agents or types of traffic. Feedback welcome: What else would you want to know about AI agents visiting your site?

    2025 · kya.vouched.id · its alternatives →

  14. 14

    Detect & trace sensitive data with precision

    2025 · neurallens.ai · its alternatives →

  15. 15

    Runtime firewall for AI coding agents.

    Aug 2026 · contextfence.dev · its alternatives →

  16. 16

    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 · its alternatives →

  17. 17

    Real-time governance firewall for autonomous AI agents

    May 2026 · gateplex.ai · its alternatives →

  18. 18

    The firewall for AI agents. Block dangerous commands

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

  19. 19

    Insights, risk assessments, and plain-English summaries

    2025 · contractguardai.blueorangelabs.com · its alternatives →

  20. 20

    Local security & compliance scanner for AI agents

    Jul 2026 · safeclaude.net · its alternatives →

  21. 21

    The AI agent firewall: catches hijacks that pass every rule

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

  22. 22

    Secure every AI agent action before it reaches production.

    Mar 2026 · web-beta-three-71.vercel.app · its alternatives →

  23. 23

    AI security: monitor, detect threats, and block spam & scams

    2025 · guardfather.ai · its alternatives →

  24. 24

    Runtime API enforcement for AI agents

    Dec 2025 · 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 →