Free managed API to check if an email address originates from a disposable service, free service, or corporate environment

If you run a SaaS product with a free trial like us, then you might experience fraudulent registrations from disposable emails abusing free trials. Use our Disposable Email Checker API to identify the origin of an email address and differentiate between real users and fraudulent users.

Disposable email illustration

Put a stop to free-trial fraud

Block all new user registrations with disposable emails.

Prioritize corporate emails

Prioritize outreach to new B2B users.

Detect free emails

Do you serve a B2B market? Perform email validation on email fields to enforce users sign up with work emails only.

Code Examples

Check if an email is a disposable email

                
$ curl \
    -X GET \
    -H "Authorization: Bearer ${YOUR_API_KEY}" \
    'https://nubela.co/proxycurl/api/disposable-email?email=test%40email.com'
                
{
  "is_disposable_email": true,
  "is_free_email": true
}

Check if an email is a free email

                
$ curl \
    -X GET \
    -H "Authorization: Bearer ${YOUR_API_KEY}" \
    'https://nubela.co/proxycurl/api/disposable-email?email=steven%40gmail.com'

{
  "is_disposable_email": false,
  "is_free_email": true
}

Check if an email is a work email

$ curl \
    -X GET \
    -H "Authorization: Bearer ${YOUR_API_KEY}" \
    'https://nubela.co/proxycurl/api/disposable-email?email=steven%40nubela.co'
{
    "is_disposable_email": false,
    "is_free_email": false
}

Simple fair pricing.

Companies of all sizes need access to Proxycurl, so we have a flexible pricing system for any size of project or company.

Free!
$ 0

Rate limit: 300 requests/5 minutes

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