Email Verification APIs

What is an Email Verification API?

An Email Verification API lets developers standalone apis that verify an email address - syntax, mx, mailbox and risk checks - before you send over HTTP. The Email Verification APIs below are compared on pricing, compliance, capabilities, and developer experience from structured, cited data.

To be listed as a Email Verification API, an API must have a public HTTP endpoint and published, sourced data. Listings are ranked on those verifiable fields, never on payment.

The APIs

• #1 ZeroBounce

  ████████▒░ 85 / 100

  Accurate, fast and secure email verification service

  PricingUsage · from $39 2,000 emails · free tier ✓

  TrustSOC 2 Type II · HIPAA · GDPR · ISO 27001 · PCI DSS

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection
  • Spam-trap detection
  • SMTP / mailbox check
  • Quality scoring
  • Data enrichment
  • Native integrations

  Used byAirbnb, Intel, LinkedIn, Samsung

  ZeroBounce profile →

• #2 Hunter

  ███████▒░░ 74 / 100

  A free email checker to instantly spot risky or fake email addresses. Verify emails with thorough checks: format, domain information, servers response, accept-all.

  PricingHybrid · from $49 month · free tier ✓

  TrustGDPR

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection
  • Quality scoring
  • Data enrichment
  • Native integrations

  Used bySemrush, Vimeo, Cisco, Canva

  The catchVerification is a secondary feature: Hunter is built for finding and prospecting emails, not bulk list hygiene.

  Hunter profile →

• #3 Verifalia

  ██████░░░░ 60 / 100

  Email list cleaning and real-time email verification service

  PricingHybrid · from $9 month · free tier ✓

  TrustGDPR · ISO 27001

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection
  • SMTP / mailbox check
  • Quality scoring

  Avoid ifYou have strict compliance requirements

  Verifalia profile →

• #4 Clearout

  ██████░░░░ 61 / 100

  Clearout is a real-time data quality engine that helps sales, marketing, customer success, product, and operations (Go-To-Market) teams maintain their contact data in a clean, accurate, and conversion-ready state.

  PricingHybrid · from $21 3,000 credits · free tier ✗

  TrustSOC 2 Type II · GDPR · ISO 27001

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection
  • Quality scoring
  • Data enrichment
  • Native integrations

  Used bySigParser, Pearl Lemon, Logic Inbound

  Avoid ifYou want to try it free before paying

  Clearout profile →

• #5 Emailable

  ██████▓░░░ 68 / 100

  The most accurate email verification platform

  PricingUsage · from $25.50 month · free tier ✗

  TrustSOC 2 Type II · GDPR · ISO 27001

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection
  • Quality scoring
  • Native integrations

  Used byleadlovers, Funky Christmas Jumpers

  Avoid ifYou want to try it free before paying

  Emailable profile →

• #6 Bouncer

  ██████░░░░ 61 / 100

  Bouncer Email Verification API lets you validate email address and verify its deliverability, in the way you want.

  PricingUsage · from $8 1,000 emails · free tier ✗

  TrustSOC 2 Type I · GDPR

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection
  • SMTP / mailbox check
  • Quality scoring
  • Native integrations

  Used byVipeCloud, ActivePipe, BigMailer, BookYourData

  Avoid ifYou want to try it free before paying

  Bouncer profile →

• #7 Kickbox

  ███████░░░ 73 / 100

  Kickbox is your all-in-one email verification platform, packed with the features, integrations and security you need to keep your email data clean and deliverable.

  PricingUsage · from $5 500 verifications · free tier ✓

  TrustGDPR

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection
  • SMTP / mailbox check
  • Quality scoring
  • Native integrations

  Used byReddit, The Zebra, Kayak, Capital One

  Avoid ifYou have strict compliance requirements

  Kickbox profile →

• #8 AbstractAPI Email Validation API

  ███████▓░░ 77 / 100

  Verify Any Email in Real Time

  PricingHybrid · from $17 month · free tier ✓

  TrustSOC 2 Type II · GDPR

  Does

  • Real-time / single
  • Bulk / list
  • Disposable detection
  • Role-account detection
  • SMTP / mailbox check
  • Quality scoring

  Used byCompass, Wolters Kluwer, Salesforce, Google

  AbstractAPI Email Validation API profile →

• #9 NeverBounce

  █████░░░░░ 49 / 100

  NeverBounce is a Real-Time Email Verifier and Email List Cleaner.

  PricingHybrid · from $8 1,000 emails · free tier ✗

  TrustGDPR

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection
  • SMTP / mailbox check
  • Native integrations

  Avoid ifYou want to try it free before paying

  NeverBounce profile →

• #10 MillionVerifier

  █████░░░░░ 50 / 100

  The most comprehensive email verification service with 99%+ accuracy, the lowest prices, and a real 100% money-back guarantee for risky emails.

  PricingUsage · from $4.90 2,000 credits · free tier ✗

  TrustGDPR

  Does

  • Real-time / single
  • Bulk / list
  • Catch-all detection
  • Disposable detection
  • Role-account detection

  Avoid ifYou want to try it free before paying

  MillionVerifier profile →