Email Check API

Stop bouncing and start connecting

Deeply probe any email address with our list cleaner or REST API.

Signup now for 1000 free email checks every month

Check an email address below

Valid format
Free email
Valid MX

Checking email validity is not a simple task.

Using our email validation service you can increase your conversion & engagement rates to boost your ROI and block low quality user accounts.

Disposable email check

Emails are checked against our constantly updated list of disposable email providers so you are protected from bounces and fake accounts.

Full verification

Check your emails format/syntax, RFC compliance, MX-records (SMTP/IMAP), typos, account type (Free / Paid) and if it is a disposable address.


We respect your privacy and maintain a strict "no store" policy with the email addresses you validate through WebCargo.

Simple list cleaner

Don't need an API? You can upload a CSV to our bulk checker tool and watch it begin processing immediately.

Why Choose WebCargo

WebCargo was created to speed up development workflow by reducing the amount of time engineers waste developing, integrating, and maintaining mundane services.

Build faster

Our RESTful JSON APIs were designed to be simple to integrate easily into all your projects, even for novice developers. We don't throttle calls to our APIs, keeping your services running without interruption.

Flexible Billing

Once you pass your free allowance you will only pay for what you use with our simple tiered billing system. Competitive pricing with no contracts to lock you in, you are free to go but more than welcome to stay.

Full Support

Clear and simple API documentation in multiple languages backed by a knowledgeable support team so you can focus on what matters.

1000 FREE email checks each month!

Simple, transparent pricing

Always know what you’ll pay with our simple tiered pricing calculator. With our highly competitive pricing and no contracts to lock you in, you are free to go and free to stay.

Tier 1

0 - 500 - Free

Tier 2

Tier 3

Tier 4

Tier 5

Tier 6

Tier 7

Tier 7

We offer custom plans for large volume orders, charities, and researchers.

Get in touch for a bespoke package

Claim your 1000 free email checks every month

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