Dev tools · alternatives · 2026

24 alternatives to APIddress — email validation API

The email validation API that shows its work

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
Email Verify API▲92
Simple email validation API for a $39 lifetime license
2021 · cloudlyn.com · its alternatives →
2
Email Validator!▲193
Free JSON API that gives you a simple way to validate emails
2015 · garridodiaz.com · its alternatives →
3
Abstract APIs▲341
Simple, powerful APIs for everyday dev tasks
2020 · abstractapi.com · its alternatives →
4
EmailDetective – A Email Validation API▲6
Hello, I'm Andrew, owner of EmailDetective. I was looking for an API solution for email validation/scoring for multiple mailing lists. I noticed a lot of the email validation services out there: - Do not have an API - Are behind a paywall to try the API - Are priced way to high - Have inconsistent or non-intuitive APIs So I decided to create my own solution. This is my first time announcing EmailDetective, so I am looking for any general feedback, issues you might have run into and if you find this service useful. And yes you can try it out for free without signing up :)
2024 · emaildetective.io · its alternatives →
5
Email Validator API ▲7
It tells you if a Email is valid or not
2025 · thirsty-melisse-hardcode-c2fce731.koyeb.app · its alternatives →
6
Deep Email Validator▲51
Validates regex, typos, disposable, dns and smtp. Contribute to mfbx9da4/deep-email-validator development by creating an account on GitHub.
2020 · github.com · its alternatives →
7
Maildown – Super Simple Email API▲98
A super simple CLI for sending emails. Contribute to chris104957/maildown development by creating an account on GitHub.
2019 · github.com · its alternatives →
8
IsTempMail – Detect and block disposable email addresses▲35
Detect and block disposable, temporary, fake email addresses. Fight spam, fraud and free trial abuse. Available as WordPress plugin and via JSON API.
2017 · istempmail.com · its alternatives →
9
Spam Check▲93
A free JSON API to check your email messages' spam scores
2015 · spamcheck.postmarkapp.com · its alternatives →
10
Proofy▲181
Quickly validate and verify your email lists.
2016 · proofy.io · its alternatives →
11
Checker▲124
Detect fake signups in under 200ms with an easy-to-use API
2025 · its alternatives →
12
Legitmailbox▲75
Email Verification API with monthly reports
2021 · its alternatives →
13
Validator.pizza▲99
Free API to block 🗑 disposable emails
2017 · usercheck.com · its alternatives →
14MS
Maildown – super simple email API▲40
2020 · maildown.dev · its alternatives →
15
Email Verification API▲4
Real-time and convenient email validation tool
2021 · emailverification.whoisxmlapi.com · its alternatives →
16
Rapid Email Validator 2025▲13
Privacy-first free email verifier | no storage | open source
2025 · rapid-email-verifier.fly.dev · its alternatives →
17
emailstuff.io▲14
Reliable email validation for clean lists and deliverability
2025 · emailstuff.io · its alternatives →
18
Totus Email Validation API▲5
Stop Bounced Emails Killing You Business, Get Real Users
2025 · gototus.com · its alternatives →
19
MailCheck▲49
Stop Free Trial Abuse with Advanced Email Verification
2025 · mail-check.tech · its alternatives →
20
Email Validation and Verification API▲2
Validate and verify email address
2018 · its alternatives →
21
Truelist▲53
Unlimited email validation
2024 · truelist.io · its alternatives →
22
Email Validator API▲8
This is an easy way to check email addresses
2020 · its alternatives →
23
Email Validation & Scoring API▲2
Validate Emails Instantly - Smart Scoring & Security
Nov 2025 · rapidapi.com · its alternatives →
24
Self host Email Validation▲51
Cleanmails - Unlimited email verification
Jan 2026 · 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 →