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Dev tools · alternatives · 2026

24 alternatives to Autheona (v2)

Over the last few months, I’ve been working on an API to prevent fake sign ups for one of my SaaS products. Later I decided to turn it into a standalone API. You can use it to prevent most fake sign-ups for your own products. It includes over 142K+ disposable domains (with an open claw agent that runs daily to identify new ones), fraud detection, typo correction, error handling, and custom rule management to fit your specific use cases. and here's the link: autheona.com I hope you give it a try. Cheers!

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

    Stop bots before they sign up

    2025 · bottyfier.com · its alternatives →

  3. 3

    Passwordless auth, fraud analytics and step-up rules in mins

    2022 · authsignal.com · its alternatives →

  4. 4
    Checker▲124

    Detect fake signups in under 200ms with an easy-to-use API

    2025 · its alternatives →

  5. 5

    Block fraud not legitimate customers

    2021 · authsafe.ai · its alternatives →

  6. 6

    Hey HN I recently rebuilt my microsaas Loginllama. It uses the same stack but I've made the API much much better and it's now a product I'm happy to promote. As with most developers I hide behind building instead of marketing. As this a developer focused product, this is me marketing! It's a product built in anger for myself when I had to implement a similar system for a number of clients. I released it as I assume that other people had the same problem. There are SDK's available for Nodejs, PHP and Python. Auth0 and Wordpress integrations are coming soon. Let me know what you think and if…

    2023 · loginllama.app · its alternatives →

  7. 7

    Automated identity verification in under 45 seconds

    2020 · its alternatives →

  8. 8

    Authenticate products instantly | shopify app | API | Web

    Nov 2025 · verityai.app · its alternatives →

  9. 9
    Trusona▲64

    Provides frictionless authentication from app. #NoPassword

    2018 · trusona.com · its alternatives →

  10. 10

    Fake signups cost you! stop before they start!

    2025 · onsefy.com · its alternatives →

  11. 11

    Stop fake signups from draining your AI budget

    Mar 2026 · bigshield.app · its alternatives →

  12. 12

    I am an indie hacker and have been launching my products on Product Hunt. Like many of you here, my experience with PH sucked: Lots of bots. Hard to compete. There's also been many new launch platforms coming up, but all of them make you compete for upvotes. Ugh. So I have been working on something different: https://saascurate.com/ It's a community-driven platform where indie hackers and SaaS founders help each other grow their products. The idea is simple - list your product, engage with other founders, gain exposure and social proof. No upvote system. It's hard and…

    2025 · saascurate.com · its alternatives →

  13. 13

    App to detect fake accounts and impersonation threats

    2025 · replitrust.com · its alternatives →

  14. 14

    Block fake signups with real-time email verification

    Jul 2026 · cleansignups.com · its alternatives →

  15. 15
    Whygoai▲12

    Don't Lose Customers. Understand Them.

    May 2026 · whygoai.pro · its alternatives →

  16. 16

    Free Disposable Email Detector & API

    Jan 2026 · disposablecheck.irensaltali.com · its alternatives →

  17. 17

    Deploy AI-Powered modules to prevent fraud and abuse

    2023 · greip.io · its alternatives →

  18. 18

    Users within our ICP were dropping off during or right after the signup process, never reaching that crucial “aha moment” where they truly see the value in our product. Typically, this moment happens when they’ve created an interactive demo they’re happy with. We were like... "let's just do it". So, we decided to ungate our product—removing the signup step entirely at this stage of the user journey. Of course, users can still sign up if they want to continue using the product, but our aim was to reduce friction and align with the supposed future of product-led growth, where ungated…

    2024 · app.supademo.com · its alternatives →

  19. 19

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

    2017 · validator.pizza · its alternatives →

  20. 20

    Stop fraudulent orders, and chargebacks with one simple tool

    Dec 2025 · its alternatives →

  21. 21

    Prevent unauthorised sharing of online accounts

    2018 · its alternatives →

  22. 22

    Making stop bot signups easier

    Jan 2026 · trusylo.com · its alternatives →

  23. 23

    Is this safe? Detect AI voice fraud & scams in real time

    Jun 2026 · authentiscanapp.com · its alternatives →

  24. 24

    Hey HN, I’m a solopreneur and have been in the SaaS space for the past 3 years. My last 3 startups failed, and a common challenge in all of them was figuring out how to reach my audience. Recently I started with cold outreach (its a struggle, since I dont have much experience with marketing). I am finding leads mainly using exa.ai websets (web vector search, extremelly good for multiple use cases, recommend checking them out) and then sending them through smartlead. I ran the campaign for the past 30 days and 12-15% emails always bounced. This wasted my email credits & chances of reaching…

    2025 · verifyemailai.com · 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 →