About Knock
Overview
Knock is customer engagement infrastructure that manages product, marketing, and transactional messaging from one platform. It is purpose-built for control, speed, and collaboration.
Teams send messages across email, SMS, push, chat, and in-app, and build messaging with AI-native tooling and agentic workflows that agents can construct, maintain, and improve.
Key Benefits
- Manage product, marketing, and transactional messaging in one platform
- Send across email, SMS, push, chat, and in-app channels
- Build complex messaging journeys from a single natural-language prompt
- Ingest real-time data from a warehouse, CDP, reverse ETL, and webhooks
- Personalize every message with AI-powered content, logic, and targeting
- Work with the entire platform from AI code editors like Cursor and Claude Code
How It Works
Teams connect their data sources, build dynamic segments using attributes, events, and relations, and trigger workflows from API calls, usage events, or segment changes. Non-engineers edit copy and targeting, while developers validate changes through version control, isolated environments, and the Knock CLI.
Use Cases
- Product teams ship in-app notifications and guides to users
- Marketing teams run cross-channel broadcasts and campaigns
- Customer service teams access the full history of a notification from template to delivery
- Engineering teams offload notification infrastructure and focus on the front-end experience
Why Choose This Product
Knock reports 99.99% uptime, delivers hundreds of millions of messages per month, and is trusted in production by companies such as Vercel, Webflow, Amplitude, and Clay. It offers a free Developer tier and is SOC2, GDPR, CCPA, and HIPAA compliant.
Knock Pricing
View full pricing →- 10K messages per month
- 500 guide active users per month
- 500 AI agent credits
- Unlimited notification workflows, broadcasts, and delivery channels
- Batch and delay notifications
- Built-in multi-tenancy and SSO via Google
- 50K messages per month
- 2.5K guide active users per month
- 2,000 AI agent credits
- Remove Knock branding
- Email client previews
- Flexible volume-based or monthly notified user pricing
- Custom roles and permissions
- Translation (i18n) support
- Directory sync (SCIM) and SAML 2.0 SSO
- Enterprise SLAs and HIPAA compliance
| Feature | Developer Free/mo | Starter $250/mo | Enterprise Custom |
|---|---|---|---|
| 10K messages per month | |||
| 500 guide active users per month | |||
| 500 AI agent credits | |||
| Unlimited notification workflows, broadcasts, and delivery channels | |||
| Batch and delay notifications | |||
| Built-in multi-tenancy and SSO via Google | |||
| 50K messages per month | |||
| 2.5K guide active users per month | |||
| 2,000 AI agent credits | |||
| Remove Knock branding | |||
| Email client previews | |||
| Flexible volume-based or monthly notified user pricing | |||
| Custom roles and permissions | |||
| Translation (i18n) support | |||
| Directory sync (SCIM) and SAML 2.0 SSO | |||
| Enterprise SLAs and HIPAA compliance |
Pricing extracted from the product website and may change. Check the source for current details.