Real-Time Email Verification API

Check email addresses while users are still on your site. Data Checks helps you catch bad, risky, or unreachable addresses before they reach your CRM, signup flow, or marketing stack.

Start with 200 free credits. No card required.

Accurate email results High reliability Fast response times Free implementation assistance

Why it matters

Accurate checks should not slow down your signup forms.

On a live web form, every millisecond matters. Data Checks is built to verify email addresses quickly and dependably at capture, so you can protect your CRM and marketing data without making genuine users wait.

Competitive pricing

Get a very competitively priced email verification service, with 200 free credits so you can test real checks before buying.

Accurate email signals

Validate syntax, domains, and mailbox-level signals so your systems can accept, reject, route, or review addresses with more confidence.

Built for reliability

Designed for dependable availability in the signup flows, lead forms, CRMs, and marketing systems your business relies on every day.

Superfast API response

Fast responses are essential for live forms. Data Checks is built to return email verification results quickly, so you can validate data in the flow without adding friction.

How it works

Get started in three steps.

1

Create an account and claim 200 free validation credits.

2

Generate an API key for your backend or browser validation setup.

3

Send email addresses to the API and apply the validation result before saving or sending.

View Email API Specs

Use cases

Made for practical data quality work.

  • Signup and account creation forms
  • Lead capture and enquiry forms
  • Checkout and booking flows
  • CRM and marketing automations

Try it now

Try it now

Run a live email validation check before you create an account. Enter an email address and see the kind of result Data Checks returns in real time.

You can run up to 5 free checks from this page. Create a free account for 200 credits and full API access.

Check level

Pricing

Transparent validation credits

Very competitive pricing for a fast, accurate, dependable validation service your forms, CRM flows, and sales teams can rely on.

Start with 200 free credits, no card required. Test the service first, then top up only when you are ready. Credits do not expire.

Email validation

Credits Per lookup
1,000 $0.0240
5,000 $0.0170
10,000 $0.0133
200,000 $0.0060

Implementation help

Free Implementation Assistance

Need technical help or implementation support? Our support team can guide you through every step of connecting your form to the Data Checks API. We can set it up for you free of charge.

Ask for Integration Help

Test fast, accurate email validation for free.

Create an account, use your 200 free credits, and see the response speed and result quality before you top up.

Get Started