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.

Test ZeroBounce Free

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

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500,000+ businesses choose ZeroBounce

Over 25 billion email addresses verified successfully

Create your free ZeroBounce account

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.

ZeroBounce API results for a successful response next to a valid verification check for ‘john.smith@gmail.com.’

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

A screenshot of ZeroBounce’s complete API documentation library.

Available in 13+ languages with API wrappers & SDKs

Leverage the email validationⓘ API in the following languages:

PHP

iOS

Scala

Rust

Ruby

Python

Pascal

Delphi

Java

JavaScript

Node

Android

C++

Check out the SDKs

Image alt text: A sample of the ZeroBounce SDK.

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.

The ZeroBounce API dashboard, which shows your account API key.

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.

The ZeroBounce members dashboard, which shows your API usage over time.

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.

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How the email verification API benefits businesses

AUTOMATED VERIFICATION

BLOCK FAKE SIGNUPS

SECURE CHECKOUT

60+ INTEGRATIONS

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.

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Frequently asked questions

An email validation API is a script that calls an email validation service to validate and verify email addresses automatically. API stands for “application programming interface,” which effectively allows one platform to communicate with another to pull data or complete a specific task.

Get started with the ZeroBounce email validation API now

Try It Free

API keys are free for all users.

Get 100 free monthly email verifications when you sign up with a business/premium domain.

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Email Validation API for Developers