Knock is flexible, reliable notifications infrastructure that's built to scale with you. Use their APIs to engage users, power cross-channel workflows, and manage notification preferences. Their purpose is to help software communicate with its users. That starts with giving product and engineering teams the tools they need to send thoughtful notifications to their customers.
"We first discovered Knock when looking to batch and digest our notifications. After reading through the Knock documentation, we were sold! We made the decision to move forward and developed our notifications feature in just one week — we had originally allotted an entire month of eng time. We loved the friendly & timely support throughout our onboarding and push to production!"




Read Knock Reviews, Testimonials & Customer References from 13 real Knock customers.
Browse Knock Case Studies, Customer Success Stories, & Customer References from 13 businesses that use Knock.