Open URL
The Open URL action opens a URL on a System Bridge server using the default application, such as the default web browser.
This action returns its result in a response variable, which you can use in later steps of the same automation or script.
Using this action from the user interface
If you prefer building automations and scripts visually, Home Assistant walks you through this action step by step. You pick what to target, tweak a few options, and save. No YAML knowledge required.
To open a URL from an automation or a script:
- Go to Settings > Automations & scenes.
- Open an existing automation or script, or select Create to start a new one.
- If you’re setting up a new automation, add a trigger in the When section. Scripts don’t need a trigger.
- In the Then do section, select Add action.
- From the search box, search for and select System Bridge: Open URL.
- Select the Bridge server and enter the URL to open.
- Select Save.
This action does not support targets. In the UI, you select the System Bridge server through the Bridge field instead of choosing an area, device, entity, or label.
Options in the UI
Using this action in YAML
If you work directly in YAML, or you want to know exactly what Home Assistant does under the hood, this section has the technical reference. It lists the field names you use in YAML, their types, and which ones are required.
In YAML, refer to this action as system_bridge.open_url. Store the result in a response variable so you can use it in later steps:
action: system_bridge.open_url
data:
bridge: 1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d
url: "https://www.home-assistant.io"
response_variable: result
Options in YAML
Response data
The response confirms the URL that was opened and includes the following fields:
-
id: The ID of the request. -
type: The result type, such asOPENED. -
data: The data that was sent, such as theurlthat was opened. -
message: A human-readable result message.
An example of the response looks like this:
id: abc123
type: OPENED
data:
url: https://www.home-assistant.io
message: URL opened
Try it yourself
Ready to test this? Open Developer tools > Actions, search for this action, fill in the fields, and select Perform action. You see what happens on your actual entitiesAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] without writing a line of YAML.
Still stuck?
The Home Assistant community is quick to help: join Discord for real-time chat, post on the community forum with the action you’re calling and what you expected to happen, or share on our subreddit /r/homeassistant.
AI assistants like ChatGPT or Claude can also explain actions or suggest the right one when you describe what you want in plain language.
Related actions
These actions work well alongside this one:
- Open path: Opens a file on a System Bridge server with the default application.