Alert channels and integrations
Send each alert to the channels you pick, and pass monitoring events to your own tools through webhooks and the REST API.
9 notification channels
Choose channels per monitor and per alert type
Email alerts with the incident details
- HTML reports
- Detailed diagnostics
- Multiple recipients
SMS
Critical alerts via SMS with global coverage
- Global coverage
- Instant delivery
- Critical alerts
Reach your team on WhatsApp instantly
- Instant alerts
- Direct messages
- Business Verified
Slack
FreeIntegrated Slack notifications for your DevOps channel
- Channel alerts
- Rich formatting
- Status colors
Webhook
FreeSend signed events to any HTTP endpoint, including Discord & custom tools
- HMAC-SHA256 signed (V2)
- Custom headers & auth
- Retry & replay protection
Teams
FreeAlerts in your Microsoft Teams channels
- Adaptive cards
- Rich formatting
- Webhook support
Telegram
FreeTelegram bot notifications for quick alerts
- Bot alerts
- Group chats
- Instant delivery
Mobile Push
FreeInstant alerts to your iOS & Android devices
- iOS & Android App
- Instant delivery
- Smart Focus Mode
Voice Call
Automated phone calls for critical alerts
- Text-to-speech
- Critical incidents
- Global reach
Custom webhooks
HTTP endpoints for real-time events
Send monitoring events to any HTTP endpoint with custom headers, authentication, and flexible JSON payloads.
{
"event": "monitor.down",
"monitor": {
"name": "API Server",
"url": "https://api.example.com"
},
"timestamp": "2024-01-15T10:30:00Z"
}- Custom HTTP headers & authentication
- Flexible JSON payload templates
- Retries for failed deliveries
- HMAC-SHA256 signing (V2) with replay protection
REST API access
Programmatic access to all data
Full programmatic access to create monitors, query metrics, and manage your monitoring infrastructure.
Authorization: Bearer <token>
Response: {
"monitors": [...]
}- Complete CRUD operations
- Historical metrics & analytics
- Real-time status updates
Developer integrations
Build custom workflows with our API and webhook system
Custom webhook templates
Configure custom payload templates for monitoring events. Send structured data to any HTTP endpoint with customizable headers and authentication.
Available on all plans
REST API
Full programmatic access to monitors, incidents, health predictions, and reporting data. Token-based auth with granular permissions.
Notification limits by plan
| Plan | SMS | Voice | Push | Webhook | ||
|---|---|---|---|---|---|---|
| Free | 250/mo | - | - | - | 100/mo | 1,000/mo |
| Hobby | 500/mo | 25/mo | 50/mo | 10/mo | 250/mo | 2,500/mo |
| Starter | 1,000/mo | 100/mo | 100/mo | 25/mo | 500/mo | 4,000/mo |
| Professional | 2,000/mo | 300/mo | 500/mo | 100/mo | 2,000/mo | 10,000/mo |
| Enterprise | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited | Unlimited |
Slack, Microsoft Teams and Telegram are webhook deliveries and share the webhook quota. Limits reset monthly. Need more? View all plans
Set up your alert channels
Email, push, webhook, Slack, Microsoft Teams, Telegram and Discord notifications are included on the Free plan. SMS, WhatsApp and voice calls are available on paid plans.
Talk to us
Questions about plans, integrations or enterprise needs? Send a message, we typically reply within 1 business day.
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