Slack, Discord, and Microsoft Teams alerts all work through incoming webhook URLs. You generate a webhook URL in the destination service, then register it with Overwatch as an alert channel. When a monitor changes state, Overwatch sends a message to that URL and your team sees it immediately in the relevant channel or space.
Slack
Discord
Microsoft Teams
Get a Slack webhook URL
Create a Slack app
Go to api.slack.com/apps and click Create New App. Choose From scratch, give your app a name (e.g. “Overwatch”), and select the workspace you want to post to. Enable incoming webhooks
In your app settings, click Incoming Webhooks in the left sidebar and toggle Activate Incoming Webhooks to on.
Add a webhook to your workspace
Scroll down and click Add New Webhook to Workspace. Choose the channel where alerts should appear and click Allow. Copy the webhook URL — it starts with https://hooks.slack.com/services/.
Create the alert channel
curl -X POST https://overwatchapp.dev/api/v1/alerts \
-H "Authorization: Bearer ow_live_sk_<secret>" \
-H "Content-Type: application/json" \
-d '{
"name": "Engineering Slack",
"type": "SLACK",
"config": {
"webhookUrl": "https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX"
}
}'
Config fields
The incoming webhook URL from your Slack app settings. Must start with https://hooks.slack.com/services/.
Get a Discord webhook URL
Open channel settings
In your Discord server, right-click the text channel where you want alerts to appear and select Edit Channel.
Create a webhook
Click Integrations in the channel settings sidebar, then Webhooks, then New Webhook. Give it a name (e.g. “Overwatch”) and optionally set a custom avatar.
Copy the webhook URL
Click Copy Webhook URL. The URL starts with https://discord.com/api/webhooks/.
Create the alert channel
curl -X POST https://overwatchapp.dev/api/v1/alerts \
-H "Authorization: Bearer ow_live_sk_<secret>" \
-H "Content-Type: application/json" \
-d '{
"name": "Ops Discord",
"type": "DISCORD",
"config": {
"webhookUrl": "https://discord.com/api/webhooks/1234567890/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
}
}'
Config fields
The webhook URL from your Discord channel’s integrations settings. Must start with https://discord.com/api/webhooks/.
Get a Teams webhook URL
Open the channel connector settings
In Microsoft Teams, navigate to the channel where you want alerts to appear. Click the … (More options) menu next to the channel name and select Connectors.
Configure the Incoming Webhook connector
Search for Incoming Webhook and click Configure. Give the connector a name (e.g. “Overwatch”) and optionally upload an icon image.
Copy the webhook URL
Click Create. Teams displays the webhook URL — copy it before closing. The URL starts with https://outlook.office.com/webhook/.
Create the alert channel
curl -X POST https://overwatchapp.dev/api/v1/alerts \
-H "Authorization: Bearer ow_live_sk_<secret>" \
-H "Content-Type: application/json" \
-d '{
"name": "Infra Teams",
"type": "TEAMS",
"config": {
"webhookUrl": "https://outlook.office.com/webhook/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX/IncomingWebhook/..."
}
}'
Config fields
The incoming webhook URL from your Teams channel connector settings. Must start with https://outlook.office.com/webhook/.
Enabling and disabling a channel
You can pause a channel without deleting it by setting enabled to false. This prevents the channel from firing while keeping its configuration and monitor bindings intact.
# Disable a channel
curl -X PATCH https://overwatchapp.dev/api/v1/alerts/<channel-id> \
-H "Authorization: Bearer ow_live_sk_<secret>" \
-H "Content-Type: application/json" \
-d '{ "enabled": false }'
# Re-enable a channel
curl -X PATCH https://overwatchapp.dev/api/v1/alerts/<channel-id> \
-H "Authorization: Bearer ow_live_sk_<secret>" \
-H "Content-Type: application/json" \
-d '{ "enabled": true }'
enabled value.
Disabling a channel is useful during scheduled maintenance windows when you want to silence notifications without removing the channel configuration.
Coming soon
PagerDuty and SMS are not yet supported as alert channel types. They appear as “coming soon” in the integrations list and will be added in a future release. Check overwatchapp.dev for updates. 