Guerrilla Mail
FreeLiveLast verified 24 Sept 2026
Generates disposable email addresses and reads their inbox through a simple JSON API, no signup.
Example request
curl "https://api.guerrillamail.com/ajax.php?f=get_email_address&ip=127.0.0.1&agent=WildAPIsResearch"
Free tier, in plain English
Fully free, no key or account; the docs say the API 'may be rate limited' but the limit isn't published.
Alternatives in Disposable Email
Best-TempMailCreates disposable email inboxes and reads incoming messages, including OTP extraction on paid plans.FreemiumDropMail.meCreate disposable email inboxes via GraphQL, then read or subscribe to incoming mail in real time.FreeFreeCustom.EmailDisposable email inboxes with message fetching and automated OTP/verification-code extraction.FreemiuminboxsinkCreates disposable inboxes and blocks until a message arrives, extracting OTP codes for test automation.Freemiummail.tmCreates disposable inboxes and lets apps poll or fetch mail sent to them, no signup needed.Free