Knock vs v0 by Vercel
Notifications-as-a-service: in-app feeds, email, push, SMS, chat via one API
vs. AI app builder — prompt to full-stack Next.js apps
Pricing tiers
Knock
Developer
Free forever. 10K messages, 500 guide users, 500 AI credits/month.
$0 base (usage-based)
Starter
$250/mo. 50K messages, 2.5K guide users, 2K AI credits. Remove branding.
$250/mo
Enterprise
Custom pricing. White-label, i18n, data warehouse, Datadog, SCIM, SAML, HIPAA/BAA.
Custom
v0 by Vercel
Free
$5/month in credits. 7 messages/day limit. Visual Design Mode, GitHub sync, Vercel deploy.
Free
Team
$30/user/month. $30 monthly credits per user + $2 daily login credits. Team collab + shared chats.
$30/mo
Business
$100/user/month. Same credits as Team + training opt-out by default.
$100/mo
Enterprise
Custom. Data never used for training, SAML SSO, RBAC, priority performance, guaranteed SLA.
Custom
Free-tier quotas head-to-head
Comparing starter on Knock vs free on v0 by Vercel.
| Metric | Knock | v0 by Vercel |
|---|---|---|
| guide users | 2500 users | — |
| guide users overage | $0.05/user USD/user | — |
| messages monthly | 50000 messages/mo | — |
| messages overage | $0.005/message USD/message | — |
Features
Knock · 13 features
- AI Agents — Autonomous notification drafting & workflow generation.
- Batch + Digest — Group notifications into digests on schedule or window.
- Chat — Slack, Microsoft Teams, Discord.
- Email — Send via SendGrid/Postmark/Resend/Mailgun/AWS SES as relays.
- Guides — In-product messaging, announcements, modals, banners.
- i18n / Localization — Translate templates by user locale.
- In-App Feed — Notification inbox with React/Vue/iOS/Android drop-in components.
- Multi-tenancy — Per-tenant branding, preferences, quiet hours.
- Outbound Webhooks — Subscribe to delivery events.
- Preferences — User + tenant preference center with granular controls.
- Push — iOS (APNs), Android (FCM), Expo, Web Push.
- SMS — Twilio, MessageBird, Telnyx, Vonage as providers.
- Workflows — Visual notification orchestration (branch, batch, delay, throttle).
v0 by Vercel · 14 features
- Component Blocks — Pre-built blocks (pricing tables, hero, forms, etc.) to drop into apps.
- Database Actions — Provision Neon/Supabase/Vercel Postgres from v0.
- Deploy to Vercel — One-click deploy with auto-env-vars.
- GitHub Sync — Two-way sync with real repos. Commit from v0 or edit in repo.
- Image-to-App — Drop a screenshot or Figma → generate matching UI.
- Iterative Chat — Conversational refinement — "make it dark mode" etc.
- MCP Server — Agent access to v0 via Model Context Protocol.
- Next.js 15 App Router — Output targets latest Next.js.
- Project Chats — Related chats grouped into projects.
- Prompt-to-App — Describe in prose → get a full Next.js app.
- shadcn/ui built-in — Component library preselected — consistent DS.
- v0 API — Programmatic access via API key (Premium).
- Vercel AI SDK Integration — Generated apps often include AI SDK scaffolding.
- Visual Design Mode — WYSIWYG editing of generated components.
Developer interfaces
| Kind | Knock | v0 by Vercel |
|---|---|---|
| CLI | Knock CLI | — |
| SDK | knockapi (Python), knockapi (Ruby), knock-elixir, knock-go, knock-java, @knocklabs/node, @knocklabs/react | Vercel AI SDK (ai-sdk-v0) |
| REST | Knock REST API | v0 API (Premium) |
| MCP | Knock MCP Server | v0 MCP Server |
| OTHER | Outbound Webhooks | GitHub Sync, v0 Web App, Vercel Deploy |
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