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Last updated
March 10, 2025

Top 5 KleanMail Email Validation API Alternatives in 2025

Nicolas Rios

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KleanMail Email Validation API is a service designed to verify the validity of email addresses. However, this product might not be suitable for everyone.

This article will explore five alternatives to KleanMail Email Validation API. Whether you're looking for different features or simply want to compare options, these alternatives offer a range of functionalities to meet various needs.

Best Alternatives to KleanMail Email Validation API in 2025

1) Abstract API

Abstract API

At Abstract API, we specialize in providing a robust Email Validation and Verification API that ensures the accuracy and reliability of your email lists. Our service offers real-time validation, syntax checking, and disposable email detection, making it easier for you to maintain clean and effective communication channels. With global coverage and seamless integration options, our API is designed to meet the needs of developers and businesses alike.

API Features

  • Real-time MX & SMTP check: Ensures the email domain's mail exchange servers are valid and can receive emails.
  • Typo checking and smart suggestion: Detects common typos in email addresses and provides smart suggestions for corrections.
  • Disposable and free email providers check: Screens against over 3,000 disposable domains to prevent temporary email addresses from being validated.
  • Privacy-friendly: Complies with GDPR and CCPA, ensuring user data is handled with the highest privacy standards.
  • High risk, low reputation domain alerts: Monitors and alerts users about domains with low reputations or high risks.
  • Industry-leading risk & quality score: Provides a comprehensive risk and quality score for each email address.
  • Smart learning at scale: Utilizes machine learning to improve validation accuracy over time.
  • Role detection: Flags role-based email addresses (e.g., sales@, info@) to help identify the quality and potential use of the email address.

These are just a few of Abstract API's many features. Check them out here to learn more.

Abstract API Pricing

  • Starter Plan - $19/month: Includes 10,000 API calls per month and allows up to 3 requests per second. Domain whitelisting is also available.
  • Basic Plan - $39/month: Offers 25,000 API calls per month with a limit of 5 requests per second. Domain whitelisting is included.
  • Standard Plan - $69/month: Provides 50,000 API calls per month and supports up to 10 requests per second. This plan also includes domain whitelisting and multiple API keys.
  • Business Plan - $99/month: Grants 100,000 API calls per month with a capacity of 25 requests per second. Features include domain whitelisting and multiple API keys.
  • Professional Plan - $199/month: Allows for 250,000 API calls per month and up to 50 requests per second. This plan includes domain whitelisting and multiple API keys.
  • Growth Plan - $499/month: Offers 750,000 API calls per month and supports up to 100 requests per second. Domain whitelisting and multiple API keys are included.

If you would like a plan based on your specific needs, please contact us for a custom solution.

What Are Users Saying?

Users have consistently praised Abstract API for its reliability and ease of use. Here are some of the positive comments from our satisfied customers:

  • "Accurate email verification, I tested a different amount of times." - Isa M.
  • "It gives quality score and deliverability of the email which reduces bounce rate for my emails." - Verified User in Retail

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2) Validity BriteVerify

Validity BriteVerify

Validity BriteVerify offers real-time and bulk validation of email addresses, phone numbers, and mailing addresses, ensuring that only accurate data enters your database. This tool helps protect sender reputation, streamline email marketing strategies, and improve overall communication effectiveness.

API Features

  • Real-Time Verification: Validates contact information at the point of capture to prevent invalid data from entering the database.
  • Bulk Validation: Allows for the bulk validation of stored data to identify and remove invalid email addresses, ensuring the database remains actionable.
  • Integration with Existing Platforms: Offers ready-made integrations with major marketing platforms and custom integrations through an API suite, streamlining email marketing strategies.

Validity BriteVerify Pricing

  • 5,000 Verifications: $40, costing $0.0080 per verification.
  • 10,000 Verifications: $80, costing $0.0080 per verification.
  • 20,000 Verifications: $150, costing $0.0075 per verification.
  • 30,000 Verifications: $210, costing $0.0070 per verification.
  • Subscription Pricing: Requires contacting support for details.

3) No2Bounce

No2Bounce

No2Bounce is an email verification tool that specializes in catch-all email validation, offering high accuracy, real-time verification, and seamless integration with various CRMs and platforms.

API Features

  • 12 Second Promise: Validates inboxes in less than 12 seconds, offering real-time email verification.
  • API Superiority: Sends actual emails to verify risky addresses and waits up to 24 hours for maximum accuracy on catch-all email addresses.
  • Security and Privacy: GDPR, SOC 2, and PCI compliant, with partnerships with leading cybersecurity institutions.

No2Bounce Pricing

  • 25,000 Credits: Costs $30, offering email verification at $0.0012 per verification.
  • 50,000 Credits: Costs $55, providing a rate of $0.0011 per verification.
  • 100,000 Credits: Costs $100, with each verification costing $0.0010.
  • 500,000 Credits: Costs $450, reducing the cost to $0.0009 per verification.
  • 1,000,000+ Credits: Pricing is not public. Contact their support for more info.

4) SafetyMails

SafetyMails

SafetyMails is a real-time email verification tool that ensures only valid and available email addresses are kept in your database, helping to improve email marketing results by preventing invalid and harmful email addresses from entering your mailing list.

API Features

  • Domain Typo Correction: Automatically corrects common domain typos to retain promising leads.
  • Disposable Email Detection: Blocks email addresses from over 80 disposable email services to maintain list quality.
  • Source/Flood Protection: Protects the API from misuse and unauthorized installations.

SafetyMails Pricing

  • Pay as You Go: Costs $33.00 and allows verification of up to 5,000 emails. Credits do not expire and include the best reports and verification algorithm.
  • Monthly Subscription: Costs $31.35 per month and provides 5,000 credits monthly. Required to use the API, and the credits do not expire.
  • Annual Subscription: Costs $356.40 per year and also provides 5,000 credits monthly. Required to use the API, and the credits do not expire.

5) myEmailVerifier

myEmailVerifier

myEmailVerifier is a bulk email verification tool designed to reduce email bounces, remove junk emails, and improve email deliverability. It offers features like syntax verification, domain/MX record checking, and a real-time API for email validation.

API Features

  • Catch-All Email Checker: Detects catch-all email servers to improve the accuracy of email validation.
  • Temporary Unavailability Detection: Identifies email servers that are temporarily unavailable, ensuring better deliverability.
  • Greylist Domain Detection: Recognizes greylisted domains to enhance email deliverability and avoid potential issues.

myEmailVerifier Pricing

  • 7 Days Plan: Costs $99 per day and offers unlimited email verification for seven days, with a maximum of 100,000 emails per file.
  • 15 Days Plan: Costs $89 per day and provides unlimited email verification for fifteen days, with a rate limit of 30 emails per minute for the single email verification API.
  • 30 Days Plan: Costs $79 per day and includes unlimited email verification for thirty days, ensuring continuous service for a month.
  • 90 Days Plan: Costs $69 per day and offers unlimited email verification for ninety days, suitable for extended campaigns.
  • Pay-As-You-Go Rates: Pricing varies based on the number of emails, with specific rates per email and bonus credits for larger purchases.

What to Consider When Selecting a KleanMail Email Validation API Alternative?

  1. Real-Time Verification: Ensures that email addresses are validated instantly at the point of capture, preventing invalid data from entering your database.
  2. Bulk Validation: Allows for the efficient validation of large volumes of email addresses, helping to maintain a clean and actionable database.
  3. Integration Capabilities: Seamlessly integrates with existing platforms and CRMs, making it easier to manage and validate email lists within your current systems.
  4. Security and Privacy Compliance: Adheres to standards like GDPR, SOC 2, and PCI, ensuring that your data is handled securely and in compliance with privacy regulations.
  5. Accuracy and Reliability: Utilizes advanced algorithms and machine learning models to provide high accuracy in email validation, reducing bounce rates and improving email deliverability.

Which One Should You Go With?

Each of the email validation tools discussed offers unique features and pricing structures, making them suitable for various needs and budgets. Whether you prioritize real-time verification, bulk validation, or integration capabilities, there's a solution that fits your requirements.

If you're looking for a reliable alternative, we recommend Abstract API. With its comprehensive features, privacy compliance, and robust support, Abstract API stands out as a top choice for ensuring your email lists remain clean and actionable.

Nicolas Rios

Head of Product at Abstract API

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4.8 from 1,863 votes
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key now
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Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
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