Knock

In plain words

Knock is a notification infrastructure platform that provides developers with an API and dashboard to manage product notifications. It handles the backend work of building and scaling notifications, allowing teams to ship faster and iterate on messaging without building notification systems from scratch. The platform is designed for developers who need flexible, reliable notification delivery across their applications.

written from the facts on this page · September 2026

From the sources

Knock is a flexible API and dashboard for powering delightful product notification experiences. It helps you ship faster, iterate on your product messaging, and scale your notifications for the long-term. We built product notifications so you don’t have to.

Knock is customer engagement infrastructure for your product, marketing, and transactional messaging. Activate your data, ship cross-channel messaging, and accelerate growth.

Flexible, AI-native tooling to build any messaging experience you want, without compromising on design, performance, or user experience. Flexible, AI-native tooling to build any messaging experience you want, without compromising on design, performance, or user experience. Never build an email again. Generate beautiful, client-safe emails in your layout and branding. User-first controls. Respect user time with preference centers and send windows. Never build an email again. Generate beautiful, client-safe emails in your layout and branding. User-first controls. Respect user time with preference centers and send windows. Ship paywalls, dialogs, and nudges powered by your components. Enable…from knock.app

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  Knock – Notification Infrastructure for Developers2022 · ▲17

  Hey HN! I’m Chris – one of the co-founders at Knock (https://knock.app). Knock is notifications infrastructure for developers. We provide a set of flexible API primitives you can use to power complex notification systems, without having to roll your own notifications infrastructure in-house. In short: we built notifications so you don’t have to. We learned about scaling notifications systems the hard way. Previously, my co-founder and I worked together at Frame.io, where we saw the upside of product notifications as well as the pain involved in building and maintaining them. With…

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  Knock CLI2023 · knock.app · ▲104

  Bring your notification infrastructure to your fingertips

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  Knock agent for SlackJun 2026 · knock.app · ▲112

  Build, manage, and ship customer messaging from Slack

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  SuprSend2022 · suprsend.com · ▲406

  We as developers, build and maintain many services in code, one of them being notification service. In the last 5-7 years, API-to-user communications have exploded across SMS, email, chat apps, mobile, and web push. As a consequence, notification service handling them has become quite complex. Developers spend time building integrations with multiple providers, create templates for each channel, managing scheduling and routing based on preferences, maintaining queues to deliver notifications on time while managing scale. Besides, product teams have poor visibility on notifications as…

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  Knock data sourcesApr 2026 · knock.app · ▲123

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