Hoppscotch vs Knock
Open-source web-based API development ecosystem — self-hostable + lightweight
vs. Notifications-as-a-service: in-app feeds, email, push, SMS, chat via one API
Pricing tiers
Hoppscotch
Self-Hosted (OSS)
$0. MIT license. Full Hoppscotch Community Edition. Docker Compose deploy.
$0 base (usage-based)
Cloud Free
$0. Personal workspace, syncing, collections. No commercial use restrictions.
Free
Enterprise Cloud
Custom. SSO, audit logs, compliance, dedicated infra, SLA.
Custom
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
Free-tier quotas head-to-head
Comparing oss-self-host on Hoppscotch vs starter on Knock.
| Metric | Hoppscotch | Knock |
|---|---|---|
| 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
Hoppscotch · 18 features
- Auth Helpers — OAuth, JWT, Bearer, etc.
- Browser Extension — Proxy through extension.
- Code Generation — Generate curl, fetch, axios, etc.
- Collections — Grouped requests + hierarchy.
- Environments — Variables with inheritance.
- GraphQL Client — Query + schema explorer.
- hopp CLI — Run tests in CI.
- Hoppscotch MCP — MCP server for AI agents.
- MQTT — MQTT client.
- Pre-request Scripts — JS runs before each request.
- Progressive Web App — Install offline-capable PWA.
- Request History — Browser-local history.
- REST Client — HTTP request builder.
- Self-Host — Docker Compose.
- Server-Sent Events (SSE) — SSE stream.
- Socket.IO — Socket.IO client.
- Test Scripts — Assertions on responses.
- WebSocket — WS messages.
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).
Developer interfaces
| Kind | Hoppscotch | Knock |
|---|---|---|
| CLI | hopp CLI | Knock CLI |
| SDK | — | knockapi (Python), knockapi (Ruby), knock-elixir, knock-go, knock-java, @knocklabs/node, @knocklabs/react |
| REST | Hoppscotch Cloud API | Knock REST API |
| MCP | — | Knock MCP Server |
| OTHER | Browser Extension, Hoppscotch Desktop, Hoppscotch Web, Self-Host (Docker) | Outbound Webhooks |
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