Email APIs · side by side
Amazon SES vs Knock
Compare Amazon SES, Knock by sending volume, delivery webhooks, inbound email, domain limits and retention.
Email APIs pricing calculator
These providers bill in different units. Each estimate uses its own workload; there is no same-volume price winner.
Amazon SES
100K
Knock
0
Amazon SES
$10 / mo
À la carte · 100K emails
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 | Amazon SES | Knock |
|---|---|---|
| Provider | Amazon Web Services | Knock Labs, Inc. |
| Billing unit | emails | messages |
| Plan at selected usage | À la carte | Developer |
| Monthly estimate | $10/mo | $0/mo |
| Workload | 100K emails | 0 messages |
| Free access | AWS Free Tier credits may apply | Developer plan includes up to 10,000 messages per month, 500 guide active users, and 500 AI agent credits. |
| Published plans | À la carte, Essentials, Pro, Enterprise | Developer, Starter, Enterprise |
| Prices checked | 2026-10-08 | 2026-10-08 |
Provider
- Amazon SES
- Amazon Web Services
- Knock
- Knock Labs, Inc.
Billing unit
- Amazon SES
- emails
- Knock
- messages
Plan at selected usage
- Amazon SES
- À la carte
- Knock
- Developer
Monthly estimate
- Amazon SES
- $10/mo
- Knock
- $0/mo
Workload
- Amazon SES
- 100K emails
- Knock
- 0 messages
Free access
- Amazon SES
- AWS Free Tier credits may apply
- Knock
- Developer plan includes up to 10,000 messages per month, 500 guide active users, and 500 AI agent credits.
Published plans
- Amazon SES
- À la carte, Essentials, Pro, Enterprise
- Knock
- Developer, Starter, Enterprise
Prices checked
- Amazon SES
- 2026-10-08
- Knock
- 2026-10-08
Email APIs monthly cost
Amazon SES: $10Knock: $0
Different workloads, separate estimates
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.
Email APIs feature comparison
| Email APIs | Amazon SES | Knock |
|---|---|---|
| Messages included | Not listed | Up to 10,000 Upgrade for additional usage. |
| Guide active users included | Not listed | Up to 500 Upgrade for additional usage. |
| AI agent credits included | Not listed | 500 $.01 per additional credit. |
| Notification channels | Not listed | Unlimited |
| Team members | Not listed | Unlimited |
| Recipients | Not listed | Unlimited |
| Power Knock with source events | Not listed | |
| Notification workflows | Not listed | Unlimited |
| Workflow triggers | Not listed | Unlimited |
| Intelligent cross-channel routing | Not listed | |
| Batching | Not listed | |
| Fetch from HTTP | Not listed | |
| Conditional sending | Not listed | |
| Scheduled workflows | Not listed | |
| Preferences | Not listed | |
| End-to-end testing | Not listed | |
| Email client previews | Not listed | |
| Non-user recipients | Not listed | |
| Manage via API & CLI | Not listed | |
| Translations (i18n) | Not listed | |
| Feeds per recipient | Not listed | Unlimited |
| Pre-built components (In-app feeds) | Not listed | |
| Bring your own components (In-app feeds) | Not listed | |
| Remove Knock branding | Not listed | |
| Feed retention | Not listed | Unlimited |
| Feed API | Not listed | |
| Custom feed filtering | Not listed | |
| Unlimited guides | Not listed | Unlimited |
| Guide ordering | Not listed | |
| Guide throttling | Not listed | |
| Pre-built components (In-app guides) | Not listed | |
| Bring your own components (In-app guides) | Not listed | |
| Per-tenant branding | Not listed | |
| Per-tenant preferences | Not listed | |
| Logs | Not listed | |
| Log retention | Not listed | 30-day retention |
| Engagement tracking | Not listed | |
| Stream observability data | Not listed | |
| Stream analytics to Segment | Not listed | |
| Stream analytics to data warehouse | Not listed | |
| Version control & history | Not listed | |
| Isolated environments | Not listed | Unlimited |
| Custom roles and permissions | Not listed | |
| Audit logs | Not listed | |
| Google SSO | Not listed | |
| Custom SSO | Not listed | |
| Directory sync (SCIM) | Not listed | |
| Template migration services | Not listed | |
| Uptime SLA | Not listed | 99.9% |
| Enterprise support | Not listed | |
| Dedicated infrastructure | Not listed |
Messages included
- Amazon SES
- Not listed
- Knock
- Up to 10,000 Upgrade for additional usage.
Guide active users included
- Amazon SES
- Not listed
- Knock
- Up to 500 Upgrade for additional usage.
AI agent credits included
- Amazon SES
- Not listed
- Knock
- 500 $.01 per additional credit.
Notification channels
- Amazon SES
- Not listed
- Knock
- Unlimited
Team members
- Amazon SES
- Not listed
- Knock
- Unlimited
Recipients
- Amazon SES
- Not listed
- Knock
- Unlimited
Power Knock with source events
- Amazon SES
- Not listed
- Knock
Notification workflows
- Amazon SES
- Not listed
- Knock
- Unlimited
Workflow triggers
- Amazon SES
- Not listed
- Knock
- Unlimited
Intelligent cross-channel routing
- Amazon SES
- Not listed
- Knock
Batching
- Amazon SES
- Not listed
- Knock
Fetch from HTTP
- Amazon SES
- Not listed
- Knock
Conditional sending
- Amazon SES
- Not listed
- Knock
Scheduled workflows
- Amazon SES
- Not listed
- Knock
Preferences
- Amazon SES
- Not listed
- Knock
End-to-end testing
- Amazon SES
- Not listed
- Knock
Email client previews
- Amazon SES
- Not listed
- Knock
Non-user recipients
- Amazon SES
- Not listed
- Knock
Manage via API & CLI
- Amazon SES
- Not listed
- Knock
Translations (i18n)
- Amazon SES
- Not listed
- Knock
Feeds per recipient
- Amazon SES
- Not listed
- Knock
- Unlimited
Pre-built components (In-app feeds)
- Amazon SES
- Not listed
- Knock
Bring your own components (In-app feeds)
- Amazon SES
- Not listed
- Knock
Remove Knock branding
- Amazon SES
- Not listed
- Knock
Feed retention
- Amazon SES
- Not listed
- Knock
- Unlimited
Feed API
- Amazon SES
- Not listed
- Knock
Custom feed filtering
- Amazon SES
- Not listed
- Knock
Unlimited guides
- Amazon SES
- Not listed
- Knock
- Unlimited
Guide ordering
- Amazon SES
- Not listed
- Knock
Guide throttling
- Amazon SES
- Not listed
- Knock
Pre-built components (In-app guides)
- Amazon SES
- Not listed
- Knock
Bring your own components (In-app guides)
- Amazon SES
- Not listed
- Knock
Per-tenant branding
- Amazon SES
- Not listed
- Knock
Per-tenant preferences
- Amazon SES
- Not listed
- Knock
Logs
- Amazon SES
- Not listed
- Knock
Log retention
- Amazon SES
- Not listed
- Knock
- 30-day retention
Engagement tracking
- Amazon SES
- Not listed
- Knock
Stream observability data
- Amazon SES
- Not listed
- Knock
Stream analytics to Segment
- Amazon SES
- Not listed
- Knock
Stream analytics to data warehouse
- Amazon SES
- Not listed
- Knock
Version control & history
- Amazon SES
- Not listed
- Knock
Isolated environments
- Amazon SES
- Not listed
- Knock
- Unlimited
Custom roles and permissions
- Amazon SES
- Not listed
- Knock
Audit logs
- Amazon SES
- Not listed
- Knock
Google SSO
- Amazon SES
- Not listed
- Knock
Custom SSO
- Amazon SES
- Not listed
- Knock
Directory sync (SCIM)
- Amazon SES
- Not listed
- Knock
Template migration services
- Amazon SES
- Not listed
- Knock
Uptime SLA
- Amazon SES
- Not listed
- Knock
- 99.9%
Enterprise support
- Amazon SES
- Not listed
- Knock
Dedicated infrastructure
- Amazon SES
- Not listed
- Knock
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Which email providers fit your needs?
Amazon SES features & plan notes
- Usage based
- AWS integration
- Dedicated IP options
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 pricingAmazon SES vs Knock — FAQ
Amazon SES: $10/month on À la carte at 100,000 emails. Knock: $0/month on Developer at 0 messages. Different billing units are not an equal-workload comparison. Estimates exclude unlisted add-ons and taxes.
Review SMTP or API integration, domain authentication, bounce and complaint events, suppression handling and delivery-log retention.
Only when the published plan actually bills by sends. Contacts, subscribers and inboxes stay in their own billing units.
Usage based, AWS integration, Dedicated IP options. Free access: AWS Free Tier credits may apply. Check plan-specific availability and current terms on the provider's official pricing page.
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. Free access: Developer plan includes up to 10,000 messages per month, 500 guide active users, and 500 AI agent credits.. Check plan-specific availability and current terms on the provider's official pricing page.