--- title: pfSense description: pfSense Widget Configuration --- Learn more about [pfSense](https://github.com/pfsense/pfsense). This widget requires the installation of the [pfsense-api](https://github.com/jaredhendrickson13/pfsense-api) which is a 3rd party package for pfSense routers. Once pfSense API is installed, you can set the API to be read-only in System > API > Settings. There are two currently supported authentication modes: 'Local Database' and 'API Key' (v2) / 'API Token' (v1). For 'Local Database', use `username` and `password` with the credentials of an admin user. The specifics of using the API key / token depend on the version of the pfSense API, see the config examples below. Do not use both headers and username / password. The interface to monitor is defined by updating the `wan` parameter. It should be referenced as it is shown under Interfaces > Assignments in pfSense. Load is returned instead of cpu utilization. This is a limitation in the pfSense API due to the complexity of this calculation. This may become available in future versions. Allowed fields: `["load", "memory", "temp", "wanStatus", "wanIP", "disk"]` (maximum of 4) For version 2: ```yaml widget: type: pfsense url: http://pfsense.host.or.ip:port username: user # optional, or API key password: pass # optional, or API key headers: # optional, or username/password X-API-Key: key wan: igb0 version: 2 # optional, defaults to 1 for api v1 fields: ["load", "memory", "temp", "wanStatus"] # optional ``` For version 1: ```yaml headers: # optional, or username/password Authorization: client_id client_token # obtained from pfSense API version: 1 ```