About Courier

Courier is a commercial notification service for developers. Instead of wiring separate integrations for each email, SMS, push and chat provider, a team sends a single API request and Courier decides how the message is routed and delivered across the channels it supports.

Teams can design templates and routing rules in a dashboard, keep notification logic out of application code, and review delivery logs when something goes wrong. Because it sits in front of multiple downstream providers, it can also make it easier to switch or combine them over time. Courier is a hosted product, suited to product and engineering teams that want a maintainable notification layer without building one themselves.