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Dev tools · alternatives · 2026

24 alternatives to EmailDetective – A Email Validation API

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 :)

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

  1. 1
    Proofy▲181

    Quickly validate and verify your email lists.

    2016 · proofy.io · its alternatives →

  2. 2

    Free JSON API that gives you a simple way to validate emails

    2015 · garridodiaz.com · its alternatives →

  3. 3

    Simple email validation API for a $39 lifetime license

    2021 · cloudlyn.com · its alternatives →

  4. 4

    Remove hard bounces and email traps from your email lists

    2016 · emaillistverify.com · its alternatives →

  5. 5

    The first free and accurate email verification service

    2020 · gmass.co · its alternatives →

  6. 6

    Validate Emails Instantly - Smart Scoring & Security

    Nov 2025 · rapidapi.com · its alternatives →

  7. 7

    The email validation API that shows its work

    Jun 2026 · apiddress.com · its alternatives →

  8. 8

    Reliable email validation for clean lists and deliverability

    2025 · emailstuff.io · its alternatives →

  9. 9

    Email Verification API with monthly reports

    2021 · its alternatives →

  10. 10

    Hey HN, I'm Chris, CTO of Knock (https://knock.app). We built email.info because every developer we talk to asks the same question: which email provider should I use? The existing resources are mostly vibes — "Best of" listicles, anonymous Reddit threads, or LLM answers trained on that same content. Objective performance data is always missing. Knock is a notification infrastructure platform, so we send billions of API requests to downstream email providers every year. We aggregated that data into a public dashboard covering 10 providers (SendGrid, Postmark, Resend, Mailgun, Amazon…

    Mar 2026 · knock.app · its alternatives →

  11. 11

    It tells you if a Email is valid or not

    2025 · thirsty-melisse-hardcode-c2fce731.koyeb.app · its alternatives →

  12. 12

    A free JSON API to check your email messages' spam scores

    2015 · spamcheck.postmarkapp.com · its alternatives →

  13. 13

    Email Verification Tool

    2025 · safetymails.com · its alternatives →

  14. 14

    A real customer starts with a real email

    2017 · weblegit.com · its alternatives →

  15. 15

    Stop Free Trial Abuse with Advanced Email Verification

    2025 · mail-check.tech · its alternatives →

  16. 16

    Validate emails, less bounces & spam reports for 10X less

    2024 · emailawesome.com · its alternatives →

  17. 17

    Hi HN, I'm excited to share a project I've been working on: UnwrapEmail(https://unwrap.email), an API designed to detect and verify disposable or temporary email addresses. Features: - Detect disposable email addresses - Extract labels from email addresses (e.g., Gmail) - Normalize addresses by removing labels or special characters (e.g., Gmail) - Validate MX records of domains - Check whether it’s safe to send to a given email to reduce bounces and maintain sender reputation Why I Built This: As the owner of an AI wrapper app, I've seen decent traffic thanks to SEO efforts + ads,…

    2024 · unwrap.email · its alternatives →

  18. 18

    Keep your lists clean with email validation tool

    2025 · mailerio.com · its alternatives →

  19. 19

    Cleanmails - Unlimited email verification

    Jan 2026 · its alternatives →

  20. 20

    Privacy-first free email verifier | no storage | open source

    2025 · rapid-email-verifier.fly.dev · its alternatives →

  21. 21

    Instant Email Verification – Real, Reachable & Secure

    2025 · validate.email · its alternatives →

  22. 22

    Smarter Email Validation—Built for Modern Apps.

    Nov 2025 · smartemailcheck.com · its alternatives →

  23. 23MS
  24. 24

    This is an easy way to check email addresses

    2020 · 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 →