+
+The url must be the root url of Lidarr, Radarr or Sonarr application.
+The Lidarr, Radarr or Sonarr API key can be found in Settings > General. It is needed to access the API.
+If you are using an older version of Radarr or Sonarr which don't support the new V3 api endpoints, add the following line to your service config "legacyApi: true", example:
+
+```yaml
+- name: "Radarr"
+ type: "Radarr"
+ url: "http://localhost:8989/"
+ apikey: "MY-SUPER-SECRET-API-KEY"
+ target: "_blank" # optional html tag target attribute
+ legacyApi: true
+```
+
+## PaperlessNG
+
+This service displays total number of documents stored. Two lines are required:
+
+```yaml
+ type: "PaperlessNG"
+ apikey: "0123456789abcdef123456789abcdef"
+```
+
+API key can be generated in Settings > Administration > Auth Tokens
+
+## Ping
+
+For Ping you need to set the type to Ping and provide a url.
+
+```yaml
+- name: "Awesome app"
+ type: Ping
+ logo: "assets/tools/sample.png"
+ subtitle: "Bookmark example"
+ tag: "app"
+ url: "https://www.reddit.com/r/selfhosted/"
+```
+
+## Prometheus
+
+For Prometheus you need to set the type to Prometheus and provide a url.
+
+```yaml
+- name: "Prometheus"
+ type: Prometheus
+ logo: "assets/tools/sample.png"
+ url: "http://192.168.0.151/"
+ # subtitle: "Monitor data server"