I've been using undisposable.net's API to find disposable email addresses but noticed that the site no longer appears to be functional.
Anybody know what happened to them? Are there any other sites that provide an API to disposable email address domains or is there a list that can be downloaded to check against?
EDIT: Clarification: I don't want to create disposable email addresses. I want to check if an email address submitted on a registration form is disposable.
It looks like nodisposablemail.com provides this service. It's got a free account for up to 500 lookups, and pricing goes up from there.
EDIT Thanks to @abrkn for pointing out that nodisposablemail.com is no longer active. Looks like there's an alternative at block-disposable-email.com, which is free for 200 queries (pricing info for beyond that).