MCatch is an email testing API built for automated testing and CI/CD pipelines. Create temporary inboxes via REST API, send emails to them, and retrieve messages — including auto-extracted OTP codes. Key features: - Auto OTP/verification code extraction - Long polling /wait endpoint (no more flaky sleep() calls) - Works with Playwright, Cypress, Python, Java, cURL - Free tier: 50 inboxes/month, no credit card - Paid plans from $10/mo