Email Validation API
for Developers
Get help automating email verification in applications. Get started with ZeroBounce’s free email verification APIⓘ, which automatically blocks fake, risky, and bot-generated email addresses.
API keys are free for all users. Get 100 free monthly email verifications when you sign up with a business/premium domain.
Also included - free Email Finder queries, email testing, and more
Why your current email verification development tools aren’t working
Email verification is necessary to protect your website and database from fake, high-risk email addresses and security risks like SQL injections. However, there are a few critical issues with basic email verification programs and related programming libraries:
Accuracy limitations
Basic email verification scripts and libraries are typically limited to regex checks. While those are great for identifying typos or syntax errors, it doesn’t include mailbox pinging, which helps you determine if a mailbox is real.
Resource strain
Your email verifier is great for a few email addresses, but how does it perform at scale? Developers like you need a platform with resources that can scale to your business needs.
Minimal email insights
There are more email address types than “valid” or “invalid.” Without a dedicated email verification API, your email marketing team isn’t getting the results that they could with deeper email insights.
Security risks
A dedicated email validation API includes enhanced, military-grade security supervised by a team of cybersecurity experts. You need to ensure your data is secure and compliant.
Try ZeroBounce’s developer tools for email validation
If you need aid in ensuring data quality in applications and website pages, ZeroBounce provides superior developer tools for email validationⓘ. Take a look at how easy it is to use:
Test ZeroBounce FreeAPI keys are free for all users. Get 100 free monthly email verifications when you sign up with a business/premium domain.
500,000+ businesses choose ZeroBounce
Over 25 billion email addresses verified successfully
Create your free account today and benefit from:
99.6% accurate email validationⓘ API
ZeroBounce guarantees 99.6% accuracy when using our email verification integration. Automatically identify any email address with more than 30 status and sub-status descriptions.
Complete API documentation for email validation
Get started fast with our comprehensive documentation. Our guides include sample codes for sandbox testing as well as for single, bulk, and batch email validationⓘ.
Visit the docs
Available in 13+ languages with API wrappers & SDKs
Leverage the email validationⓘ API in the following languages:
- PHP
- iOS
- Scala
- Rust
- Ruby
- Python
- Pascal
- C
- Delphi
- Java
- JavaScript
- Node
- C#
- Android
- Go
- C++
Create and manage multiple API keys
API keys are free. Create, name, and manage our API keys and set a custom whitelisted IP range for each connection.
Track API usage from your dashboard
Our API allows you to keep track of every email validated, providing you with reliable data by date and email address type. You can also customize usage reports and download the results to share with your team, ensuring transparency and accountability.
24/7 customer support
With the ZeroBounce email validationⓘ API, you always have a helping hand. Our team of email experts and developers is available 24/7 to assist you with configuring and managing your API.
Protect your company data with military-grade security
How the email verification API benefits businesses
Automatic email verification
Uploading your email list to an email verifier is a great way to enhance your database. But automatically verifying new email addresses is even better. Just add the email verification APIⓘ to your web pages or platforms, and the API will automatically check new, incoming emails.
Hear from developers like you
As developer, I like the way zerobounces API is handling and the easy way how the platform is showing you all details for those request such as valid, invalid, abuse, spam traps is a great help to improve our SOI / DOI.
Jose P.
It's ease of use, and my number one favorite feature is that you can do the single email validation. Loading CSV files into an app is never fun, and being able to check a quick email when I need to is awesome. Also, your API is great and super helpful as we've integrated it across various apps. It's also very affordable and you are always offering deals.
Lucia T.
A really good service for keeping a clean list and avoiding problems with email marketing platform. Excellent and well-documented APIs to integrate their services very easily Quick customer service via chat
DEV T.
Additional developer tools included with all ZeroBounce accounts
Email Finder API
Take advantage of ZeroBounce’s Email Finder service and find new prospects and leads automatically. Create a free API key and connect ZeroBounce’s Email Finder to your favorite platform
Email Scoring API
After you verify your email addresses, Score them and get enhanced insights into your subscribers and customers.
Activity Data API
Help your marketing team out and identify which of your verified email addresses are active. Ping the Activity Data API and find out which contacts have opened, clicked, forwarded, or unsubscribed from emails in the last 30-180 days.
List Evaluator API
The List Evaluator API helps developers save credits by giving you a snapshot of your email list health. Ping the list evaluator API with your email list, and we’ll let you know if we suspect a high bounce rate. If your email list hygiene is poor, you can configure the API to send your list for validation automatically.
API keys are free for all users.
Get 100 free monthly email verifications when you sign up with a business/premium domain.
