RESTful Email Validation API for Verification

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Experience a email validation API that will verify emails in real-time. Email YoYo’s verification works with your app, software, website, registration process, e-commerce cart or anything else you have that collects email addresses for account creation or communication. How A Email Verification API Works

We power some of the largest brands on the Internet and top developers prefer our API 3 to 1 over Mailgun and other competitors.

Why? We offer a price beat guarantee that you can’t find anywhere else. We want your business and we can prove it with our free 7 day trial.

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What are some typical uses of this API service?

  • Lead generation companies, blogs, websites, and forums.
  • E-commerce cart systems, data collectors, and call centers.
  • Software or mobile app developers, and social media services.
  • The applications are endless and only stops with your imagination.

Why would I want to use a email verification API?

  • Reduce fake email signups or automated Spam bot registrations.
  • Eliminate deactivated customer email addresses from your database lists.
  • Stop incorrect or accidental data like typos and misspellings during data entry.

Any email service provider, deeper and accurate.

No other API can match the level of accuracy you will find with Email YoYo. We validate Yahoo, Gmail, Live/Hotmail, and thousands of other email services with flawless accuracy.

The same for custom domains and business self-hosted systems. If it sends email – we can check it.

How do we know that? Because we test the competition daily to stay on top as the better email validation API service for verifying email addresses. Take our free trial to test it and see for yourself.

Is the service affordable, fast, and fantastic?

Our simple and straightforward pricing levels keep your costs down while giving you the highest return on investment by saving technical resources, budget, customer service times, and other business critical operations. This email verification API has full SSL / HTTPS support if you need it.

Request A TrialReady for the real meat and potatoes to see what can drive real-time email verification for your specific applications?

Read below as we uncover how your API string for email validation will look and sample coding to adapt and integrate quickly per your needs.

Email Validation API Server Locations

RESTful Email Validation API Technical Details

The email verification API calls are made using the method GET and to the following URL:

We offer the following parameters:


Email Verification API Email Status Responses

You will receive back the following values in the response when an email address is sent to our API for verification, all in real-time with a seamless response.

API Response Codes

Example API Call Scenario

Example response for email address ‘’

The URL passed to the email verification API is:

The response would be:


*The ACL method (Access Control List) instead of a license key can be used for client side requirements.

Enabling The “Correct” Parameter

Shown above, we also support the “correct” parameter which removes common invalid characters like spaces, slashes and brackets from the email address entry.

Here is what that email validation API call would look like if the user entered wrong99]]

We automatically remove that invalid character of ] for you and return the correctly intended email address on for validation.

Here are what the completed results would look like:



Do you like what you see?

Request a free trial to test it with your Application today. HTTPS is also available.

View the entire email validation API guide that covers more about the service.

Additional Status Information

When the email address being verified is returned with a status of ‘Bad’ or ‘Unknown’ we return a detailed reason as part of the response in the ‘additionalStatus’ value. Click here to see a full list of additional status values and descriptions.

Free Code Examples

Please refer to some of the free code examples here to get you started with a email verification API as a developer.

More examples can be provided by request using server examples of PHP, C#, VB.NET, Java, Python, and PERL. Client side examples include jQuery ACL, jQuery license key, AngularJS, and cURL.

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