It lets developers create and manage temporary inboxes programmatically without authentication. Messages are received instantly and our system automatically extracts OTP codes and verification links, saving time during testing, automation, and development.
The entire public API structure and backend architecture were built with Cursor, including inbox generation, message retrieval, OTP extraction, and verification link parsing.
Developers can easily integrate it into scripts, CI pipelines, bots, and testing environments through a simple REST API.
Key features:
• Open-source disposable email service
• Public API for inbox creation and message retrieval
• Automatic OTP and verification link extraction
• No signup required
• Built for developers and automation workflows
• Privacy-focused and lightweight
API & docs: https://www.freecustom.email/api
How Cursor helped:
Cursor was used to build the entire API architecture and backend logic powering FreeCustom.Email.
It helped rapidly generate and structure:
• the REST API endpoints
• inbox generation logic
• message parsing pipeline
• OTP and verification link extraction
• developer-friendly API responses
• documentation and integration examples
Cursor essentially acted like a pair-programmer for the backend, allowing the full API system to be designed and shipped much faster.
Would love feedback from the Cursor community 