FCE — Disposable Inbox API for OTPs - Test signup flows with disposable inboxes and OTP parsing

FreeCustom.Email now provides a full developer API for creating disposable inboxes programmatically. Built for testing signup flows, automation, and OTP verification. Features: • Automatic OTP / verification code extraction • Real-time email delivery via WebSockets • CLI for scripting and automation • Attachment support up to 50MB • Custom domain inboxes • Non-expiring request credits Free plan available — no credit card required. Try it live → freecustom.email/api/playground

Hey PH! 👋 I just launched the FCE Developer API — here's the backstory: FCE started as a simple disposable email app, and the #1 request we kept getting was "can I use this in my code?" So we built it properly. The feature I'm most proud of is OTP extraction — instead of parsing email bodies yourself, you hit GET /inboxes/:inbox/otp and get the code back directly. Huge time saver for automated testing and verification flows. WebSocket support was the other big one — no more polling every second. You get a push event the moment an email lands. Free tier is genuinely free, no credit card. Would love to hear what you're building with it — drop a comment or ask anything 🙏

FCE — Disposable Inbox API for OTPs - Test signup flows with disposable inboxes and OTP parsing

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