Clockwork was originally a UK-based company that developed a simple, reliable, and developer-friendly SMS API. Its service allowed businesses to programmatically send and receive text messages for various purposes, including notifications, alerts, two-factor authentication, and marketing. In 2020, Clockwork was acquired by MessageBird, a global omnichannel communications platform company. The Clockwork API and its technology have since been integrated into MessageBird's broader suite of communication tools, continuing to serve existing and new customers under the MessageBird brand.

Founded in

United States