Monitoring Sources

Kato polls your monitoring services from the server and streams live status updates to your browser. Your API keys remain strictly on the server.

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1. Uptime Kuma

1. In Uptime Kuma, open Settings (⚙️) → API Keys.
2. Click Add API Key and copy the generated token (uk1_...).
3. Configure Kato:

UPTIME_KUMA_URL=https://kuma.your-domain.com
UPTIME_KUMA_API_KEY=uk1_your_secret_token
UPTIME_KUMA_POLL_INTERVAL=60000

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2. UptimeRobot

1. In UptimeRobot, open Integrations & API → API and copy your Read-Only API Key.
2. Configure Kato:

UPTIMEROBOT_API_KEY=u123456-abcdef1234567890
UPTIMEROBOT_POLL_INTERVAL=30000

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3. Multi-Instance Setup (KATO_ADAPTERS)

To aggregate multiple Uptime Kuma servers and UptimeRobot accounts on a single screen, list their aliases in KATO_ADAPTERS. Each source gets its own color badge (KP, KL, RM) on every card:

KATO_ADAPTERS=kuma_prod,kuma_lan,robot_main

# Instance 1: Production Uptime Kuma -> Badge "KP"
ADAPTER_KUMA_PROD_URL=https://kuma.prod.acme.io
ADAPTER_KUMA_PROD_API_KEY=uk1_prod_token

# Instance 2: Internal LAN Uptime Kuma -> Badge "KL"
ADAPTER_KUMA_LAN_URL=http://192.168.1.50:3001
ADAPTER_KUMA_LAN_API_KEY=uk1_lan_token

# Instance 3: UptimeRobot -> Badge "RM"
ADAPTER_ROBOT_MAIN_API_KEY=u987654-secret

TIP

If the alias contains kuma or robot, Kato detects the provider type automatically. Otherwise, set ADAPTER_<ALIAS>_TYPE=uptimekuma or uptimerobot.