# Deployment

Canister supports deployment URL calls, helping administrators manage installations at scale.

## How it works

Canister responds to URLs beginning with `canister://`. These can be triggered from a browser, a shell, an MDM, or a script.

**Using a browser**

Paste the URL call below into a web browser, press `Enter`, and Canister will open.

```
canister://open
```

**Using a shell**

Paste the command below into a shell, press `Enter`, and Canister will open.

{% tabs %}
{% tab title="Mac" %}
Using a Terminal:

```
open "canister://open"
```

{% endtab %}

{% tab title="Windows" %}
Using PowerShell:

```
start 'canister://open'
```

{% endtab %}
{% endtabs %}

## Calls <a href="#deployment-call-list" id="deployment-call-list"></a>

The following calls are intended for deployment and administration purposes:

#### Open <a href="#open" id="open"></a>

Launches Canister:

```
canister://open
```

#### Quit <a href="#quit" id="quit"></a>

Closes Canister:

```
canister://quit
```

#### Restart <a href="#restart" id="restart"></a>

Restarts Canister:

```
canister://restart
```

#### Check for updates <a href="#update" id="update"></a>

Triggers an update check:

```
canister://update
```

#### Activate <a href="#activate" id="activate"></a>

Activates Canister using your license key:

```
canister://activate?key=xxxx-xxxx-xxxx-xxxx
```

| URL Parameter | Type   | Required? |
| ------------- | ------ | --------- |
| key           | string | mandatory |

#### Deactivate <a href="#deactivate" id="deactivate"></a>

Deactivate Canister:

```
canister://deactivate
```


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# Agent Instructions: Querying This Documentation

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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.hedge.video/canister/features/deployment.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.