Mattermost
Deliver alerts to Mattermost channels
Send notifications to self-hosted Mattermost instances via incoming webhooks. Ideal for teams that need on-premise chat with notification routing.
How it works
Configure
Add the channel in your Alphorn dashboard with your credentials.
Send a webhook
POST a JSON payload to your Alphorn webhook endpoint.
Delivered
Alphorn filters, routes, and delivers the notification automatically.
Use cases
- DevOps alerts in self-hosted environments
- Security incident notifications
- Build and test result updates
Configuration
- Mattermost Webhook URL
- Channel override support
- Custom username and icon
Send your first notification
One HTTP request is all it takes. Alphorn handles routing to Mattermost automatically.
$ curl -X POST https://your-instance.com/n/wh_abc123 \
-H "Content-Type: application/json" \
-d '{"title":"Deploy complete","message":"v2.1.0 is live","priority":3,"tags":["deploy"]}'What Alphorn adds on top of Mattermost
Wiring Mattermostinto your application directly is the easy part. What usually grows into a maintenance problem is everything around it — retries when the provider is having a bad day, backoff so you don't get rate-limited, fan-out to additional destinations when a rule fires, and an audit trail for compliance or debugging. Alphorn owns all of that on your behalf, so the integration code you write stays at one HTTP call forever.
Every notification is placed on a durable queue before it touches the Mattermost API. If delivery fails, Alphorn retries with exponential backoff up to five times and records the failure in the delivery log. You can trigger a secondary notification when deliveries to a primary channel fail — for example, page an on-call engineer when a daily summary to a chat room stops going through. Filtering rules based on priority, tags, or JSON path expressions decide at runtime whether a particular payload reaches Mattermost or gets routed somewhere else entirely.
The same rules apply whether you're on the managed edition or running Alphorn yourself. The self-hosted edition is AGPL-3.0-or-later and ships as a single container, so you can deploy the exact same delivery pipeline on your own infrastructure — useful for regulated environments where outbound notification data cannot leave a private network unencrypted.
Related chat & messaging integrations
Alphorn can route the same notification to multiple channels. Pair Mattermost with another chat & messaging destination:
Start routing to Mattermost
Free plan includes 3,000 messages/month. No credit card required.