Knock

Notification infrastructure API

Free tier + paidEmail, forms & notificationsknock.app

What it is

Hosted notification infrastructure: define a workflow once and Knock fans it out to email, in-app feed, push, SMS and Slack. Handles batching, throttling, digests, per-user preferences, quiet hours and localisation. Ships prebuilt React components for an in-app inbox and a preference centre.

Why it earns a slot

The in-app notification feed and preference centre are exactly the parts everyone underestimates. Knock hands you both as drop-in React components instead of three weeks of schema design.

Know before you commit

The pricing gap is brutal — $0 to $250/mo with nothing in between. A message counts per user per channel, so one workflow hitting email plus in-app burns two.

Getting started

npm i @knocklabs/node

Field notes

0 from the community

Loading notes…

Field check

Unverified

Pricing snapshot

Free Developer: 10,000 messages/mo plus 500 guide active users. Starter $250/mo for 50,000 messages, $0.005 per message over. Enterprise is custom.

Snapshots move fast — verify at checkout, and post a field note if it changed.

Drop into your Lovable chat

Evaluate Knock (https://knock.app) for this project, then use it only if it fits what we are already building.
Context: Notification infrastructure API. Hosted notification infrastructure: define a workflow once and Knock fans it out to email, in-app feed, push, SMS and Slack. Handles batching, throttling, digests, per-user preferences, quiet hours and localisation. Ships prebuilt React components for an in-app inbox and a preference centre.
Reviewer notes (general, not written for this codebase): The in-app notification feed and preference centre are exactly the parts everyone underestimates. Knock hands you both as drop-in React components instead of three weeks of schema design.
Watch out for: The pricing gap is brutal — $0 to $250/mo with nothing in between. A message counts per user per channel, so one workflow hitting email plus in-app burns two.
Pricing: Free Developer: 10,000 messages/mo plus 500 guide active users. Starter $250/mo for 50,000 messages, $0.005 per message over. Enterprise is custom.
Setup: npm i @knocklabs/node
Rules: treat the notes above as background only. Do not assume a theme, style, layout or feature that is not already in this project — inspect the existing code first and ask me before changing visual direction.

/api/public/tools/knock

Neighbourhood

How Knock sits against the rest of the atlas — swaps, companions and the tools builders actually save alongside it.

Instead of thisDiscord Webhooks Formik React Email React Hook Form Slack Incoming Webhooks Amazon SES Basin Courier Fillout

Named in the wiringNovu

Also in Email, forms & notifications

Amazon SES

aws.amazon.com

Cheapest bulk email (AWS)

PaidEmail, forms & notifications

A la carte $0.10 per 1,000 emails. Essentials plan $0.16 per 1,000. Outbound attachment data $0.12/GB, managed dedicated IPs $15/mo. New AWS accounts get up to $200 in Free Tier credits.

Open dossier

Basin

usebasin.com

Form backend with spam blocking

Free tier + paidEmail, forms & notifications

Free: 50 submissions/mo, 1 form, 30-day retention. Starter $12.50/mo (250), Growth $24.17/mo (1,000, unlimited forms), Pro $30.62/mo (5,000), Agency $81.25/mo (25,000), billed yearly.

Open dossier

Courier

courier.com

Multi-channel notification API

Free tier + paidEmail, forms & notifications

Free Developer: 10,000 sends/mo. Business is usage-based at $0.005 per send beyond that. Enterprise is custom with volume discounts.

Open dossier

Discord Webhooks

docs.discord.com

Community alerts via webhook

FreeEmail, forms & notifications

Free. No bot user, OAuth or authentication required; standard Discord API rate limits apply per webhook.

Open dossier