Knock is infrastructure for sending product and customer messaging.
Ship cross-channel product notifications and lifecycle messaging that drive engagement, growth, and retention.
Flexible. Powerful. Complete.
Everything you need to power best-in-class notifications for your product.
Stateful notification engine
Build thoughtful notification workflows. Respect user attention and drive engagement.
Cross-Channel Analytics
Stream notification data to your tools. Learn and iterate.
Template Management
Manage notification templates in a single place with autocomplete and partials support.
Preference Management
Give users control of where and when they receive notifications.
{
"__typename": "PreferenceSet",
"channel_types": {
"push": true,
"email": true
},
"categories": {
"comments_and_mentions": {
"email": true
},
"project_updates": {
"email": true
}
}
}In-app Component Library and SDKs
Power all of your in-app messaging. Native to your product. Built for production-level performance.
Stateful notification engine
Build thoughtful notification workflows. Respect user attention and drive engagement.
Cross-Channel Analytics
Stream notification data to your tools. Learn and iterate.
Template Management
Manage notification templates in a single place with autocomplete and partials support.
Preference Management
Give users control of where and when they receive notifications.
{
"__typename": "PreferenceSet",
"channel_types": {
"push": true,
"email": true
},
"categories": {
"comments_and_mentions": {
"email": true
},
"project_updates": {
"email": true
}
}
}In-app Component Library and SDKs
Power all of your in-app messaging. Native to your product. Built for production-level performance.
Built by developers,
for developers.
Knock's environment model allows you to test, deploy, and rollback across your development, staging, and production environments.
Management API & CLI
Build, test and maintain your Knock instance, all from your local and remote development workflows.
CI/CD Integration
Validate your notifications before you deploy to production.
Production-Ready Observability
Debug notifications with ease. Stream logs to observability tooling for live monitoring.
Git-like Version Control
Make changes without impacting production. Rollback with a click.
Management API & CLI
Build, test and maintain your Knock instance, all from your local and remote development workflows.
CI/CD Integration
Validate your notifications before you deploy to production.
Production-Ready Observability
Debug notifications with ease. Stream logs to observability tooling for live monitoring.
Git-like Version Control
Make changes without impacting production. Rollback with a click.
Messaging
infrastructure
you can trust.
99.9% uptime
We take being a downstream provider seriously.
Scaled delivery
Knock delivers hundreds of millions of messages per month.
HIPAA
SOC2
GDPR
CCPA
Trusted in production at
“Improved CS response times by 27%”
Knock lets us focus on what we do best—helping merchants deliver great customer service. Within two months we had a system handling 15M notifications with full visibility into performance.
Yegor Yakovishen
Senior engineering manager • Gorgias
“Notifications at scale”
Notification infrastructure is the most essential part of any product that I'd never dare build myself from scratch or operate at scale. Knock's APIs allow me to focus on my front-end experience, while all the complexity is abstracted away.
Guillermo Rauch
Founder & CEO • Vercel
“We collaborate faster with product and marketing”
We wanted to increase our agility and be able to say "yes" more often to product and marketing teams. Knock was exactly what we were looking for. And now we're not wasting our time figuring out infra. We are just able to focus on driving adoption of new features.
Utkarsh Sengar
VP of Engineering • Webflow
“What used to take weeks now takes minutes”
Thanks to Knock's core functionality, our teams are able to easily build complex notification flows. We now have a notification system that is easy to use and that our teams love to work with!
Chamila Amithirigala
Staff software engineer • Amplitude
“Easy access for our non-technical team”
The level of visibility Knock provides into our notification system was a game-changer. Our customer service team can now easily access the entire history of a notification, from the initial template to the final delivered message.
Troy Blakely
Engineering lead • Discogs
“Fueled our 20x revenue growth”
From the very beginning, one of our strategies has been to offload complexity to third parties. That's what allowed us to grow in revenue without growing the team.
Luís Jesus
Engineering lead • Bounce
“Doubled our course completion rates”
From a product management perspective, I was most interested in getting the impact as fast as possible. It took longer to justify the buy decision than it did to implement Knock.
Dave Chalmers
VP of Product • Safety Culture
“Improved CS response times by 27%”
Knock lets us focus on what we do best—helping merchants deliver great customer service. Within two months we had a system handling 15M notifications with full visibility into performance.
Yegor Yakovishen
Senior engineering manager • Gorgias
“Notifications at scale”
Notification infrastructure is the most essential part of any product that I'd never dare build myself from scratch or operate at scale. Knock's APIs allow me to focus on my front-end experience, while all the complexity is abstracted away.
Guillermo Rauch
Founder & CEO • Vercel