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Alternatives

Products that do what Maskbreak does

Free fraud detection API. 1,000 requests an hour, no card.

  1. 1
    Checker124

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

    2025

  2. 2

    Detect Fraud Faster with Intelligent Automation

    Nov 2025

  3. 3

    Fraud protection for Stripe Connect marketplaces

    2025

  4. 4
    NFT Guard236

    Protect yourself from fake NFTs and crypto scams

    2022

  5. 5

    Block fraud not legitimate customers

    2021

  6. 6

    Improved fraud prevention with Radar 2.0

    2018

  7. 7

    Data APIs for AI agents & developers — free to start

    Feb 2026

  8. 8IM

    We think this is helpful because scams are getting more out of hand than ever, so we wanted to build a tool that can help people to identify scams instantly and ALSO creates a large dataset to "train" everyone's brain on scam detection patterns. After browsing 10-20 scams, anyone can quickly learn what indicators to look for in subtle (or not so subtle) scams. 1. Upload screenshot of anything you think is suspicious 2. GPT-vision goes to work, extract text and analyze the screentho and give you an instant result 3. Each upload adds to a growing public database, letting everyone to see and…

    2024 · antiphish.ai

  9. 9FP

    2016 · proxycheck.io

  10. 10

    Free AI visibility audit

    Jul 2026

  11. 11BP

    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…

    Oct 2025 · truesign.ai

  12. 12AP

    Hi HN, I'm Andrios, founder of hoop.dev (YC W21), we build runtime controls for agents. We just released Alcatraz. We built it because our product is written in Go and we do real time Data Masking, but we were using MS Presidio (Python) for PII detection and it made connections slow. There was a good discussion here a few months ago when OpenAI released their Privacy Filter: (https://news.ycombinator.com/item?id=47870901). A lot of questions were built into our design. Structured identifiers (credit cards, SSNs, etc) are deterministic and you can verify them with checksum.…

    Aug 2026

  13. 13PD

    PII Detective is a web application designed to identify, classify, and protect Personally Identifiable Information (PII) in data platforms such as BigQuery and Snowflake. It leverages LLMs to identify PII column names, and with human-in-the-loop validation, uses Dynamic Data Masking Policies to easily enforce Access Control Limits (ACLs) while minimizing user friction. For comparison, GCP has a "Sensitive Data Protection" service which promises similar functionality, but it can become extremely costly since it runs hundreds of regex queries on the entire contents of the table. For…

    2024 · github.com

  14. 14CV

    A few months ago, the Exploratorium in San Francisco had its network compromised due to a phishing attack. An employee hurriedly filled out her credentials in what looked like a Google Docs sign-in but was actually a hacker's fake site. The hacker then used her credentials to steal 54 other employee passwords. Current solutions to phishing are limited to forcing employees to attend training to spot these hacks and attempting to judge the URL's reputation. People don't have time to pay attention to every url they click. This is especially true when faced with deadlines. Even the technical…

    2016

  15. 15

    The CI gate that says no to unapproved AI code

    18d ago · linebreakapp.com

  16. 16

    Free tech audit tool for AI API relays

    11d ago · checkfakeapi.net

  17. 17FI

    2017 · github.com

  18. 18CP

    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

  19. 19

    Catch AI text, deepfakes & phishing links from your phone

    12d ago · play.google.com

  20. 20AM

    I built this after one too many 3 AM wake-ups due to API outages. Existing solutions felt overpriced and overcomplicated for my small-scale needs. Key features: Simple, GitHub-inspired dashboard Free tier: 5-minute checks, email alerts, 30-day retention Premium tier: 1-minute checks, SMS alerts, unlimited retention Significantly more affordable than enterprise solutions Tech stack: Next.js frontend, Node.js backend, MongoDB, Stripe for payments. This is my attempt to solve the "sleep vs. downtime" dilemma for fellow indie hackers. I'd appreciate any feedback or feature suggestions. What's…

    2024 · martinup.app

  21. 21

    Knockout fake user form your app. Because they ass holes

    17d ago · tempo-checker.rami-dev.com

  22. 22BD

    2016 · npmjs.com

  23. 23

    Is this a scam? 10 free tools that answer in a minute

    19d ago · tuteladigitalis.com

  24. 24CS

    Hey HN, Artem and Maksym from NewsCatcher here. Some of you know us as we started six years ago as two freshly graduated economics students who decided to build the best news API product. We started NewsCatcher thinking the market for news APIs was so big that we could build a self-serve platform and get millions of $29 users. Obviously, it was a wrong assumption. We pivoted to serve enterprises and had success with it. But we are hackers at heart, and we want to serve hackers. We haven't used our Launch HN yet, so consider this our smoke test. We're looking for feedback and power users…

    Apr 2026 · platform.newscatcherapi.com

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