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Dev tools · alternatives · 2026

24 alternatives to Mapick Cost Firewall

block killer

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier.

  1. 1
    HOL Guard▲106

    The 1st Firewall for AI Agents

    Jul 2026 · hol.org · its alternatives →

  2. 2
    Blaze▲746

    Use AI to find high intent leads + trigger relevant outreach

    2024 · its alternatives →

  3. 3
    FireWally▲156

    A free Mac firewall powered by Apple Intelligence

    Dec 2025 · apps.apple.com · its alternatives →

  4. 4

    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 →

  5. 5
    Kastrafree tier, from $19.99/mo▲332

    Hi HN, Fernando and I built Kastra. Kastra intercepts AI agent tool calls and evaluates them against deterministic policies before they execute. We built this product to control pre- and post-inference workloads. This is aimed at developers using coding agents like Claude Code, Codex, Cursor, and OpenClaw. Kastra pushes an allow, hold, and deny decision before the action runs. You can build these policies in plain English from the web app. The interception engine evaluates the tools, targets, and parameters of every action at sub 1ms at a scale of billions of interceptions per day. We also…

    Jul 2026 · kastra.ai · its alternatives →

  6. 6

    Forward spam callers to an AI and waste their time

    2025 · automaticall.io · its alternatives →

  7. 7IM

    Tools, calculator, and helpful information for network engineering, web developers, and IT professionals.

    2013 · tunnelsup.com · its alternatives →

  8. 8

    Download Firewall - Spam Call Blocker by Ad Hoc Labs, Inc on the App Store. See screenshots, ratings and reviews, user tips, and more apps like Firewall - Spam…

    2019 · apps.apple.com · its alternatives →

  9. 9

    Free AI website blocker for Chrome that stops distractions in real-time. 100% private on-device processing. Block the right sites at the right time.

    Nov 2025 · tasksentry.app · its alternatives →

  10. 10

    Control your website traffic with click and block technology

    2017 · its alternatives →

  11. 11

    Runtime firewall for AI coding agents.

    Aug 2026 · contextfence.dev · its alternatives →

  12. 12

    The onchain firewall that stops 99% of hacks in real-time

    2024 · forta.org · its alternatives →

  13. 13

    The firewall for AI agents. Block dangerous commands

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

  14. 14
    CtrlAI▲104

    Transparent proxy that secures AI agents with guardrails

    Mar 2026 · github.com · its alternatives →

  15. 15

    Launched Blocks.ai today - the control plane and network layer for agents. One outbound connect, zero-trust security, and A2A protocols built in. Connect your agent to any frontend you build or any specialist agents you need regardless of runtime without tons of messy middleware. I work to solve agentic problems with Blocks.ai AMA :)

    Jul 2026 · blocks.ai · its alternatives →

  16. 16

    Enable secure AI adoption across your entire organization

    Apr 2026 · firetail.ai · its alternatives →

  17. 17

    Real-time governance firewall for autonomous AI agents

    May 2026 · gateplex.ai · its alternatives →

  18. 18

    Spot AI scams before they cost you money.

    May 2026 · mosamtech.gumroad.com · its alternatives →

  19. 19

    Cybersecurity for homes & businesses 🔒

    2018 · indiegogo.com · its alternatives →

  20. 20

    Extreme Robocall Blocker

    2019 · tryfirewall.com · its alternatives →

  21. 21

    Spend firewall for model traffic.

    Jun 2026 · panicly.lol · its alternatives →

  22. 22
    Runwallfree tier▲9

    A Runtime security layer that lets AI agents execute safely

    Jul 2026 · runwall.vercel.app · its alternatives →

  23. 23

    Protecting Ads From Bot Traffic

    2025 · parados.ai · its alternatives →

  24. 24

    Stop bots, fake traffic, VPNs, and scrapers in real time.

    Jun 2026 · blockbots.org · 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 →