2) Emailable

Emailable offers an Email Verification API that enables developers to filter invalid email addresses directly on their websites, landing pages, or applications, ensuring data privacy and compliance with industry standards.
API Features
- Sample Code and Test Environment: Provides sample code and a test environment for easy integration.
- Batch Operations and Webhooks: Supports batch operations and webhooks for efficient email verification.
- Custom Charts and Result Statistics: Allows users to visualize API usage and gain insights through custom charts and statistics.
Emailable Pricing
- Pay-As-You-Go: No monthly payments, buy only what you need, and credits never expire.
- Monthly Subscription: Subscribe and save 15%, cancel anytime, and credits never expire.
- Standard Plan: 500 Inbox Reports, 50 Blacklist Monitors, and 12-Hour Blacklist Check Frequency.
- Enterprise Plan: Unlimited Inbox Reports, Unlimited Blacklist Monitors, and Hourly Blacklist Check Frequency.
- Volume Discounts: Available for larger purchases, offering cost savings based on the number of credits bought.
3) Kickbox

Kickbox provides an Email Verification API that validates email addresses in real-time at the point of capture, ensuring a clean email database and improving deliverability success by blocking fake emails and reducing bounce rates.
API Features
- Real-Time Email Verification: Validates email addresses instantly at the point of capture, ensuring only legitimate emails enter your database.
- Batch Verification: Efficiently processes large lists of up to 1 million email addresses, providing detailed responses for each.
- API Dashboard: Visualizes email verification data over time, helping users monitor and manage email quality effectively.
Kickbox Pricing
- 100 Verifications: Free of charge.
- 500 Verifications: Costs $5.
- 1,000 Verifications: Costs $10.
- 2,500 Verifications: Costs $25.
- 5,000 Verifications: Costs $40.
4) DeBounce

DeBounce provides a robust Email Validation API that ensures the validity of email addresses through real-time and bulk validation, helping businesses maintain a clean email list and effectively reach their audience.
API Features
- Email Avatar: Retrieves an avatar URL associated with any email address from multiple online resources.
- Spelling Suggestion: Provides "Do You Mean" suggestions for misspelled emails, correcting major email provider domains.
- Spam Traps Detection: Filters out known spam-traps and honeypots using a constantly updated database.
DeBounce Pricing
- 5,000 Verifications: Costs $10. This plan includes all features and credits never expire.
- 10,000 Verifications: Costs $15. Offers the same features as the 5,000 verifications plan but at a lower cost per verification.
- 25,000 Verifications: Costs $30. Provides a more economical option for larger email lists with all features included.
- 50,000 Verifications: Costs $50. Suitable for medium-sized businesses needing extensive email validation.
- 100,000 Verifications: Costs $90. Ideal for large-scale operations, offering the lowest cost per verification among the smaller plans.
5) Mailboxlayer

Mailboxlayer offers a JSON API for email validation and verification, providing features like syntax and typo checks, MX-Records and SMTP verification, catch-all detection, and filtering of free and disposable emails.
API Features
- Syntax & Typo Check: Validates email syntax and provides suggestions for common typos, ensuring accurate email entries.
- MX-Records & SMTP Verification: Confirms the existence of email domains and checks the validity of email addresses through SMTP.
- Catch-All Detection: Identifies domains that accept all emails, helping to filter out potentially invalid addresses.
Mailboxlayer Pricing
- 5,000 Verifications: Costs $10. This plan includes all features and credits never expire.
- 10,000 Verifications: Costs $15. Offers the same features as the 5,000 verifications plan but at a lower cost per verification.
- 25,000 Verifications: Costs $30. Provides a more economical option for larger email lists with all features included.
- 50,000 Verifications: Costs $50. Suitable for medium-sized businesses needing extensive email validation.
- 100,000 Verifications: Costs $90. Ideal for large-scale operations, offering the lowest cost per verification among the smaller plans.
What to Consider When Selecting a Mailgun Email Validation API Alternative?
- Real-Time Verification: Ensures email addresses are validated instantly at the point of capture, reducing the risk of fake or mistyped emails entering your database.
- Batch Operations: Supports bulk email verification, allowing you to process large lists efficiently and maintain a clean email database.
- Syntax and Typo Checks: Validates email syntax and provides suggestions for common typos, ensuring accurate email entries and reducing bounce rates.
- Spam Trap and Disposable Email Detection: Filters out known spam traps and disposable email addresses, protecting your sender reputation and improving deliverability.
- Compliance and Security: Ensures data privacy and compliance with industry standards like GDPR and CCPA, providing peace of mind for businesses handling sensitive information.
Which One Should You Go With?
Each of the email validation APIs discussed offers unique features and pricing plans, making them suitable for various business needs. Whether you prioritize real-time verification, batch operations, or advanced typo checks, any of these options can help maintain a clean and effective email list.
If you're looking for a robust alternative, we recommend signing up with Abstract API. With its comprehensive features, privacy compliance, and excellent customer support, Abstract API stands out as a reliable choice for email validation and verification.