I Built the First Official CLI for a Disposable Email Service — Here's Why and How to Use It

The problem: email verification is the last manual step in automated pipelines If you have ever tried to automate a signup flow in CI/CD, you know the pain. You can automate everything — provisioning, building, deploying, testing — but the moment your app sends a verification email, you are stuck. You either: Keep a shared test inbox that becomes a mess of race conditions when tests run in parallel Mock the email step and quietly stop testing the actual delivery pipeline Write fragile regex against a third-party API and break every time the email format changes Just... click through it manually in staging None of those are good. So I built fce . What is fce? fce is the official CLI for FreeCustom.Email — a disposable inbox API. It lets you create temporary inboxes, stream incoming emails in real time via WebSocket, and extract OTP codes automatically, all from your terminal. As far as I can tell, it is the only official CLI tool for any disposable or temporary email service in the worl