notifications
Courier
Notification API with multi-channel orchestration, templates, and preferences
Developer platform for transactional notifications across email, push, SMS, in-app, chat (Slack/Teams/Discord). Visual notification designer, user preferences, template versioning, and routing across providers. Raised $35M Series B.
Pricing
| Tier | Price | Notes |
|---|---|---|
| Free | Free | Up to 10,000 notifications/month. All channels. Community support. |
| Business | $99/mo | From $99/mo. Higher volumes, advanced routing, preference center, branding removal. |
| Enterprise | Custom | Custom. SOC 2, SSO, dedicated support, volume discounts, SLA. |
Limits
| Tier | Metric | Value | Notes |
|---|---|---|---|
| — | channels supported | email, SMS, push, in-app, chat | All channels all tiers |
| — | providers | multi-provider routing + failover | Route via SendGrid, Twilio, FCM, APNs, etc. |
| business | pricing model | usage-based | Scales with notification volume |
| business | starting price | 99 USD/mo | Business starts at $99/mo |
| enterprise | soc2 | SOC 2 Type II | Enterprise compliance |
| enterprise | sso | SAML SSO | Enterprise SSO |
| free | notifications monthly | 10000 notifications/mo | Free tier volume |
Features
- Chat — Slack, Microsoft Teams, Discord, Mattermost.
- Email — SendGrid, Postmark, Mailgun, AWS SES, Resend, SMTP.
- Inbox (In-App) — React/JS drop-in in-app inbox component.
- Lists — Segment recipients for bulk notification sends.
- Logs + Analytics — Per-message delivery timeline + engagement.
- Multi-channel Routing — Provider failover + preferred channel per user.
- Notification Designer — Visual editor for templates across channels. · docs
- Preferences — Per-user notification preferences hub.
- Push — APNs, FCM, Expo, OneSignal.
- Send API — POST /send with template + recipients + data. · docs
- SMS — Twilio, MessageBird, Vonage, Plivo, Telnyx.
- Templates + Versioning — Template brands, variants, localization, version history.
- Webhooks — Delivery + engagement event webhooks.
Developer interfaces
| Slug | Name | Kind | Version |
|---|---|---|---|
| cli | Courier CLI | cli | — |
| sdk-go | courier-go | sdk | 3.x |
| sdk-java | courier-java | sdk | 3.x |
| rest-api | Courier REST API | rest | v1 |
| studio | Courier Studio | other | — |
| webhooks | Outbound Webhooks | other | — |
| sdk-node | @trycourier/courier | sdk | 6.x |
| sdk-python | trycourier (Python) | sdk | 5.x |
| react-sdk | @trycourier/react-inbox | sdk | 3.x |
| sdk-ruby | trycourier (Ruby) | sdk | 3.x |
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