inboxsink
FreemiumLiveLast verified 24 Sept 2026
Creates disposable inboxes and blocks until a message arrives, extracting OTP codes for test automation.
Example request
curl -H "Authorization: Bearer $API_KEY" https://inboxsink.com/v1/domains
Free tier, in plain English
A free account gets an API key good for 1,000 calls a month with no card; inboxes last 1 hour on a shared domain.
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