API SANDBOX
The purpose of this sandbox is to implement a method of testing API keys – a simulation of the real-time API, without having to login and create an account.
There is no delay when using this sandbox and it does not do any actual verification. It is intended to allow clients to quickly test their API integration before using a live key and therefore any paid credits.
HTTP requests are redirected to HTTPS, secured by Let’s Encrypt.
USAGE
The format to call the sandbox is as follows for the V1 API:
https://sandbox01.emailverifyapi.com/api/a/v1?key=SANDBOXKEY01&email=<email_address>
And for the V3 API use the following:
https://sandbox01.emailverifyapi.com/v3/lookups/json?email=<email_address>&key=SANDBOXKEY01
The responses are hard coded based on the email address used:
For example: bad-mailboxdoesnotexist@sandbox.company.com
returns Bad/MailboxDoesNotExist
If any unexpected email address is supplied we simply return OK/Success.

Give Email Checker a quick test today by using our online testing service below to experience our spreed and accuracy.
Test Drive Email Checker