Dev tools · alternatives · 2026

24 alternatives to AuthentiCheck

Real-time API to Check Fake Email

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. AuthentiCheck launched in 2024; newer entries below may have overtaken it.

1
MailCheck▲49
Stop Free Trial Abuse with Advanced Email Verification
2025 · mail-check.tech · its alternatives →
2
Bulk Email Verifier & Checker▲115
The top tool for checking mail address authenticity
2023 · email-verifier.convertinsight.com · its alternatives →
3
Checker▲124
Detect fake signups in under 200ms with an easy-to-use API
2025 · its alternatives →
4
VerifyRight▲5
Catch fake emails before they signup
2025 · verifyright.io · its alternatives →
5
Weecheck▲120
Validate email addresses and avoid bounces
2021 · its alternatives →
6
Weecheck v2▲100
Simple email verification to improve deliverability
2022 · its alternatives →
7
Email Verify API▲92
Simple email validation API for a $39 lifetime license
2021 · cloudlyn.com · its alternatives →
8
Mailtrap.io▲125
Fake SMTP. Send Test Emails without spamming real customers
2014 · mailtrap.io · its alternatives →
9
Legitmailbox▲75
Email Verification API with monthly reports
2021 · its alternatives →
10
Proofy▲181
Quickly validate and verify your email lists.
2016 · proofy.io · its alternatives →
11FS
Fake SMTP server as a service▲149
2017 · develmail.com · its alternatives →
12
Clearout 2.0▲103
98%+ accurate real-time & bulk email verification services
2020 · clearout.io · its alternatives →
13
Blaze Verify▲13
Send emails to real people. Email Verification Platform.
2019 · emailable.com · its alternatives →
14
Email Spam Checker by Autoklose▲105
Send spam-free, high-converting emails
2020 · app.autoklose.com · its alternatives →
15
Truemailcheck Free Email Validation▲7
Free email Vaildator Tool
Oct 2025 · its alternatives →
16
Scrubby▲42
Complete risky email validation tool with 98% accuracy
2025 · scrubby.io · its alternatives →
17
Email Verification API▲4
Real-time and convenient email validation tool
2021 · emailverification.whoisxmlapi.com · its alternatives →
18
BounceHunter▲72
Real-time email verification and email cleaning services
2021 · bouncehunter.com · its alternatives →
19
Mailerio▲30
Keep your lists clean with email validation tool
2025 · mailerio.com · its alternatives →
20
Bot, proxy and fake email detection without captchas▲9
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…
2025 · truesign.ai · its alternatives →
21
SmartEmailCheck▲9
Smarter Email Validation—Built for Modern Apps.
Nov 2025 · smartemailcheck.com · its alternatives →
22
Real-time email validation JS Widget▲30
Verify an email address typed in your form in real-time
2020 · app.thechecker.co · its alternatives →
23
PhishGuard▲17
Detect Phishing Emails with AI-Powered Confidence 🚀
2024 · its alternatives →
24
Email Validator API ▲7
It tells you if a Email is valid or not
2025 · thirsty-melisse-hardcode-c2fce731.koyeb.app · 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 →