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AI · alternatives · 2026

24 alternatives to Bot, proxy and fake email detection without captchas

I've been researching the bot & proxies space for years. I slowly incubated a service to protect public forms, contents and APIs. It recenty reached a few million daily requests and I now dare to bring it to light. Truesign detects bots, proxies/vpns and fake emails, through a single request from the browser, without challenges or user interaction. It can block the request based on rules you choose, or grant a token with encrypted information about the visitor for you to decide. I created a few pages to showcase how it works: - https:/demo.truesign.ai/protected-form : a form…

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
    Trueguard▲365

    Stop fake user signups

    2025 · trueguard.io · its alternatives →

  2. 2

    Privacy-first bot & spam defense, GDPR compliant CAPTCHA

    2023 · zencaptcha.com · its alternatives →

  3. 3

    IPDetective collects data from about 60+ different sources such as official cloud provider endpoints and public VPN/Proxy/Tor/Bot net lists. Then aggregates this data into a fast and easy to use API that can be integrated into applications or scripts easily. IPDetective started as a hobby project for my other hobby projects :) and I decided to wrap a simple website around and offer it as a service. Let me know what your thoughts, if you find value in this service or if you have any feature requests.

    2022 · ipdetective.io · its alternatives →

  4. 4

    OP here. I built this because I recently caught myself almost pasting a block of logs containing AWS keys into Claude. The Problem: I need the reasoning capabilities of cloud models (GPT/Claude/Gemini), but I can't trust myself not to accidentally leak PII or secrets. The Solution: A Chrome extension that acts as a local middleware. It intercepts the prompt and runs a local BERT model (via a Python FastAPI backend) to scrub names, emails, and keys before the request leaves the browser. A few notes up front (to set expectations clearly): Everything runs 100% locally. Regex detection…

    Dec 2025 · github.com · its alternatives →

  5. 5
    Truelink▲101

    Real-time Mobile Security with AI & Local VPN – Stay Secure

    2025 · its alternatives →

  6. 6

    Stop bots before they sign up

    2025 · bottyfier.com · its alternatives →

  7. 7

    So many bots out there, be sure who's on the other side.

    2016 · apps.apple.com · its alternatives →

  8. 8

    Prevent fraud by detecting proxy and VPN users

    2025 · visitorquery.com · its alternatives →

  9. 9

    Find and block impersonator accounts/bots on Twitter!

    2018 · its alternatives →

  10. 10

    Hi HN :) really excited to share this with you. The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels…

    Jul 2026 · captchainbox.com · its alternatives →

  11. 11

    Catch fake emails before they signup

    2025 · verifyright.io · its alternatives →

  12. 12

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

    Jun 2026 · blockbots.org · its alternatives →

  13. 13

    first ai driven approach to detect fraud in numbers,ip,mails

    May 2026 · verifyshield.netlify.app · its alternatives →

  14. 14

    Stop Bots, Proxies, VPNs, TOR, & Similar Abusive Behavior.

    2022 · ipqualityscore.com · its alternatives →

  15. 15

    Block disposable emails with our API. Start for free today.

    2017 · validator.pizza · its alternatives →

  16. 16

    Your instant phishing verdict | Secure, Private, Accurate

    Feb 2026 · mails-guard.com · its alternatives →

  17. 17

    Detect Phishing Emails with AI-Powered Confidence 🚀

    2024 · its alternatives →

  18. 18

    Email validation for AI agents — hosted MCP, no keys

    Sep 2026 · truelist.io · its alternatives →

  19. 19

    Know which email opens and clicks are real humans, not bots

    Jul 2026 · omnivery.com · its alternatives →

  20. 20

    Real-time API to Check Fake Email

    2024 · authenticheck.co · its alternatives →

  21. 21

    Stop leaking sensitive data to AI chatbots

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

  22. 22

    API to block disposable fake emails and invalid mail domains

    Jul 2026 · rapidapi.com · its alternatives →

  23. 23

    proxycheck.io is a premium Proxy detection API with a full featured free plan. Try us today!

    2016 · proxycheck.io · its alternatives →

  24. 24

    Detect VPNs, Proxy Servers, Tor and Hosting Providers

    2020 · ipinfo.io · 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 →

Bot, proxy and fake email detection without captchas…