Prevent users to sign up with temporary email addresses.
MailCheck.ai API is a free Email API that requires no API key, is served over HTTPS and has unconfirmed CORS support.
Block disposable emails with our API. Start for free today.
Details from mailcheck.ai.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Disposable inboxes for end-to-end signup tests, with long-polling and HMAC-signed webhooks
Verify email deliverability with a strict yes/no, disposable and catch-all detection
Check a domain's SPF, DKIM, DMARC and MX records and get what to fix, with the values to publish
The MailCheck.ai API is provided by UserCheck (mailcheck.ai). Block disposable emails with our API. Start for free today.
Yes. The MailCheck.ai API is listed in the Email category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The MailCheck.ai API requires no authentication, so you can start making requests without signing up.
CORS support for the MailCheck.ai API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The MailCheck.ai API is served over HTTPS, so it's safe to use in production.