Email APIs · side by side
Knock compared to other Email providers
Compare Knock by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
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Knock
$0 / mo
Developer · 0 messages
Listed USD plan fees and tracked usage only. Unlisted compute, transfer, extras, taxes and contract terms are excluded. Custom or unsupported plan usage is not estimated.
Email APIs overview & pricing
| Email APIs | Knock |
|---|---|
| Provider | Knock Labs, Inc. |
| Billing unit | messages |
| Plan at selected usage | Developer |
| Monthly estimate | $0/mo |
| Workload | 0 messages |
| Free access | Developer plan includes up to 10,000 messages per month, 500 guide active users, and 500 AI agent credits. |
| Published plans | Developer, Starter, Enterprise |
| Prices checked | 2026-10-08 |
Provider
- Knock
- Knock Labs, Inc.
Billing unit
- Knock
- messages
Plan at selected usage
- Knock
- Developer
Monthly estimate
- Knock
- $0/mo
Workload
- Knock
- 0 messages
Free access
- Knock
- Developer plan includes up to 10,000 messages per month, 500 guide active users, and 500 AI agent credits.
Published plans
- Knock
- Developer, Starter, Enterprise
Prices checked
- Knock
- 2026-10-08
Email APIs monthly cost
Knock: $0
Cost by messages
Cost curve data
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| 0 | $0 |
| 0 | $0 |
| 0 | $0 |
| 0 | $0 |
| 0 | $0 |
| 0 | $0 |
| 0 | $0 |
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- $0
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- $0
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- $0
Email APIs feature comparison
| Email APIs | Knock |
|---|---|
| Messages included | Up to 10,000 Upgrade for additional usage. |
| Guide active users included | Up to 500 Upgrade for additional usage. |
| AI agent credits included | 500 $.01 per additional credit. |
| Notification channels | Unlimited |
| Team members | Unlimited |
| Recipients | Unlimited |
| Power Knock with source events | |
| Notification workflows | Unlimited |
| Workflow triggers | Unlimited |
| Intelligent cross-channel routing | |
| Batching | |
| Fetch from HTTP | |
| Conditional sending | |
| Scheduled workflows | |
| Preferences | |
| End-to-end testing | |
| Email client previews | |
| Non-user recipients | |
| Manage via API & CLI | |
| Translations (i18n) | |
| Feeds per recipient | Unlimited |
| Pre-built components (In-app feeds) | |
| Bring your own components (In-app feeds) | |
| Remove Knock branding | |
| Feed retention | Unlimited |
| Feed API | |
| Custom feed filtering | |
| Unlimited guides | Unlimited |
| Guide ordering | |
| Guide throttling | |
| Pre-built components (In-app guides) | |
| Bring your own components (In-app guides) | |
| Per-tenant branding | |
| Per-tenant preferences | |
| Logs | |
| Log retention | 30-day retention |
| Engagement tracking | |
| Stream observability data | |
| Stream analytics to Segment | |
| Stream analytics to data warehouse | |
| Version control & history | |
| Isolated environments | Unlimited |
| Custom roles and permissions | |
| Audit logs | |
| Google SSO | |
| Custom SSO | |
| Directory sync (SCIM) | |
| Template migration services | |
| Uptime SLA | 99.9% |
| Enterprise support | |
| Dedicated infrastructure |
Messages included
- Knock
- Up to 10,000 Upgrade for additional usage.
Guide active users included
- Knock
- Up to 500 Upgrade for additional usage.
AI agent credits included
- Knock
- 500 $.01 per additional credit.
Notification channels
- Knock
- Unlimited
Team members
- Knock
- Unlimited
Recipients
- Knock
- Unlimited
Power Knock with source events
- Knock
Notification workflows
- Knock
- Unlimited
Workflow triggers
- Knock
- Unlimited
Intelligent cross-channel routing
- Knock
Batching
- Knock
Fetch from HTTP
- Knock
Conditional sending
- Knock
Scheduled workflows
- Knock
Preferences
- Knock
End-to-end testing
- Knock
Email client previews
- Knock
Non-user recipients
- Knock
Manage via API & CLI
- Knock
Translations (i18n)
- Knock
Feeds per recipient
- Knock
- Unlimited
Pre-built components (In-app feeds)
- Knock
Bring your own components (In-app feeds)
- Knock
Remove Knock branding
- Knock
Feed retention
- Knock
- Unlimited
Feed API
- Knock
Custom feed filtering
- Knock
Unlimited guides
- Knock
- Unlimited
Guide ordering
- Knock
Guide throttling
- Knock
Pre-built components (In-app guides)
- Knock
Bring your own components (In-app guides)
- Knock
Per-tenant branding
- Knock
Per-tenant preferences
- Knock
Logs
- Knock
Log retention
- Knock
- 30-day retention
Engagement tracking
- Knock
Stream observability data
- Knock
Stream analytics to Segment
- Knock
Stream analytics to data warehouse
- Knock
Version control & history
- Knock
Isolated environments
- Knock
- Unlimited
Custom roles and permissions
- Knock
Audit logs
- Knock
Google SSO
- Knock
Custom SSO
- Knock
Directory sync (SCIM)
- Knock
Template migration services
- Knock
Uptime SLA
- Knock
- 99.9%
Enterprise support
- Knock
Dedicated infrastructure
- Knock
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Which email providers fit your needs?
Knock features & plan notes
- Cross-channel workflow orchestration with batching, delays, and branch logic
- Prebuilt and headless UI components for in-app notification feeds
- Out-of-the-box user preference management and hosted preference centers
- Git-like commit and workflow promotion across environments with CLI and API support
- 10K messages (Includes messages sent from workflows and broadcasts)
- 500 guide active users (A user that sees at least one guide in the month)
- 500 AI agent credits (Credits consumed by AI agent function, then $.01 per credit)
- Unlimited notification workflows
- Unlimited broadcasts
- Unlimited delivery channels
- Unlimited team members
- Batch and delay notifications
- Built-in multi-tenancy
- SSO via Google
How to compare email providers
Separate transactional delivery from campaigns, outreach and agent inboxes. Compare monthly sends and daily caps; contacts, seats and inboxes are not sending allowances. Budget separately for dedicated IPs, validation and attachments.
Browse Email APIs pricing