diff --git a/homeassistant/components/alexa/capabilities.py b/homeassistant/components/alexa/capabilities.py
index bc9b482109f..df32220895d 100644
--- a/homeassistant/components/alexa/capabilities.py
+++ b/homeassistant/components/alexa/capabilities.py
@@ -300,6 +300,10 @@ class Alexa(AlexaCapability):
     The API suggests you should explicitly include this interface.
 
     https://developer.amazon.com/docs/device-apis/alexa-interface.html
+
+    To compare current supported locales in Home Assistant
+    with Alexa supported locales, run the following script:
+    python -m script.alexa_locales
     """
 
     supported_locales = {
diff --git a/script/alexa_locales.py b/script/alexa_locales.py
new file mode 100644
index 00000000000..84bdac4133a
--- /dev/null
+++ b/script/alexa_locales.py
@@ -0,0 +1,67 @@
+"""Check if upstream Alexa locales are subset of the core Alexa supported locales."""
+
+from pprint import pprint
+import re
+
+from bs4 import BeautifulSoup
+import requests
+
+from homeassistant.components.alexa import capabilities
+
+SITE = (
+    "https://developer.amazon.com/en-GB/docs/alexa/device-apis/list-of-interfaces.html"
+)
+
+
+def run_script() -> None:
+    """Run the script."""
+    response = requests.get(SITE, timeout=10)
+    soup = BeautifulSoup(response.text, "html.parser")
+
+    table = soup.find("table")
+    table_body = table.find_all("tbody")[-1]
+    rows = table_body.find_all("tr")
+    data = [[ele.text.strip() for ele in row.find_all("td") if ele] for row in rows]
+    upstream_locales_raw = {row[0]: row[3] for row in data}
+    language_pattern = re.compile(r"^[a-z]{2}-[A-Z]{2}$")
+    upstream_locales = {
+        upstream_interface: {
+            name
+            for word in upstream_locale.split(" ")
+            if (name := word.strip(",")) and language_pattern.match(name) is not None
+        }
+        for upstream_interface, upstream_locale in upstream_locales_raw.items()
+        if upstream_interface.count(".") == 1  # Skip sub-interfaces
+    }
+
+    interfaces_missing = {}
+    interfaces_nok = {}
+    interfaces_ok = {}
+
+    for upstream_interface, upstream_locale in upstream_locales.items():
+        core_interface_name = upstream_interface.replace(".", "")
+        core_interface = getattr(capabilities, core_interface_name, None)
+
+        if core_interface is None:
+            interfaces_missing[upstream_interface] = upstream_locale
+            continue
+
+        core_locale = core_interface.supported_locales
+
+        if not upstream_locale.issubset(core_locale):
+            interfaces_nok[core_interface_name] = core_locale
+        else:
+            interfaces_ok[core_interface_name] = core_locale
+
+    print("Missing interfaces:")
+    pprint(list(interfaces_missing))
+    print("\n")
+    print("Interfaces where upstream locales are not subsets of the core locales:")
+    pprint(list(interfaces_nok))
+    print("\n")
+    print("Interfaces checked ok:")
+    pprint(list(interfaces_ok))
+
+
+if __name__ == "__main__":
+    run_script()
diff --git a/tests/fixtures/non_packaged_scripts/alexa_locales.txt b/tests/fixtures/non_packaged_scripts/alexa_locales.txt
new file mode 100644
index 00000000000..beb9c8dbc7e
--- /dev/null
+++ b/tests/fixtures/non_packaged_scripts/alexa_locales.txt
@@ -0,0 +1,650 @@
+                  <h1>List of Alexa Interfaces and Supported Languages</h1>
+
+
+<div markdown="span" class="alert alert-info" role="alert"><i class="fa fa-info-circle"></i> <b>Note:</b> Sign in to the <a href="https://developer.amazon.com/alexa/console/ask" target="_blank" rel="noopener noreferrer">developer console</a> to build or publish your skill.</div><hr />
+
+
+
+
+
+                  <p>Implement the Alexa interfaces to build automotive skills, music, radio, and podcast skills, smart home skills, and video skills.  Alexa interfaces use the <a href="../ask-overviews/voice-interaction-models.html#prebuilt-models">pre-built voice interaction model</a>.</p>
+
+<p>You can use these interfaces with Alexa Voice Service (AVS) Built-in and Alexa Connect Kit (ACK) enabled devices, also. For more details, see <a href="../smarthome/development-options.html">Smart Home Development Options</a>.</p>
+
+<h2 id="alexa-interfaces">Alexa interfaces</h2>
+
+<p>The following table shows the interfaces that you can implement in your Alexa skills. Follow the link to each interface for full details, including the supported capabilities and example customer utterances.</p>
+
+<table><thead><tr><th> Interface
+</th>
+<th> Version
+</th>
+<th> Primary skill type
+</th>
+<th> Supported languages
+
+</th></tr></thead><tbody></tbody><colgroup><col width=" 40%" /><col width="10%" /><col width="20%" /><col width="30%" /></colgroup><tbody><tr><td>
+        <p><a href="../alexa-voice-service/alexa-applicationstatereporter.html"><code>Alexa.ApplicationStateReporter</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>AVS</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-audio-playqueue.html"><code>Alexa.Audio.PlayQueue</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Music, Radio, Podcast</p>
+      </td><td>
+        <p><code>en-US</code>, <code>es-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../automotive/alexa-authorizationcontroller.html"><code>Alexa.AuthorizationController</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Automotive</p>
+      </td><td>
+        <p><code>en-CA</code>, <code>en-US</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-automationmanagement.html"><code>Alexa.AutomationManagement</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home Energy</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../automotive/alexa-automotive-vehicledata.html"><code>Alexa.Automotive.VehicleData</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Automotive</p>
+      </td><td>
+        <p><code>en-CA</code>, <code>en-US</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-brightnesscontroller.html"><code>Alexa.BrightnessController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>,<code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../alexa-voice-service/alexa-liveviewcontroller.html"><code>Alexa.Camera.LiveViewController</code></a></p>
+      </td><td>
+        <p>1.7</p>
+      </td><td>
+        <p>AVS</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-camerastreamcontroller.html"><code>Alexa.CameraStreamController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-channelcontroller.html"><code>Alexa.ChannelController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Entertainment, <br />
+Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-colorcontroller.html"><code>Alexa.ColorController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-colortemperaturecontroller.html"><code>Alexa.ColorTemperatureController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-commissionable.html"><code>Alexa.Commissionable</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-consentrequiredreporter.html"><code>Alexa.ConsentManagement.ConsentRequiredReporter</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>ja-JP</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-contactsensor.html"><code>Alexa.ContactSensor</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-cooking.html"><code>Alexa.Cooking</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Cooking</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-cooking-foodtemperaturecontroller.html"><code>Alexa.Cooking.FoodTemperatureController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Cooking</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-cooking-foodtemperaturesensor.html"><code>Alexa.Cooking.FoodTemperatureSensor</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Cooking</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-cooking-presetcontroller.html"><code>Alexa.Cooking.PresetController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Cooking</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-cooking-temperaturecontroller.html"><code>Alexa.Cooking.TemperatureController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Cooking</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-cooking-temperaturesensor.html"><code>Alexa.Cooking.TemperatureSensor</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Cooking</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-cooking-timecontroller.html"><code>Alexa.Cooking.TimeController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Cooking</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-datacontroller.html"><code>Alexa.DataController</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-deviceusage-estimation.html"><code>Alexa.DeviceUsage.Estimation</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home Energy</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-deviceusage-meter.html"><code>Alexa.DeviceUsage.Meter</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home Energy</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-doorbelleventsource.html"><code>Alexa.DoorbellEventSource</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-endpointhealth.html"><code>Alexa.EndpointHealth</code></a></p>
+      </td><td>
+        <p>3.1</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-equalizercontroller.html"><code>Alexa.EqualizerController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Entertainment</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>,  <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-inputcontroller.html"><code>Alexa.InputController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Entertainment, <br />
+Video, AVS</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-inventorylevelsensor.html"><code>Alexa.InventoryLevelSensor</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>,  <code>it-IT</code>, <code>ja-JP</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-inventorylevelusagesensor.html"><code>Alexa.InventoryLevelUsageSensor</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>,  <code>it-IT</code>, <code>ja-JP</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-inventoryusagesensor.html"><code>Alexa.InventoryUsageSensor</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>,  <code>it-IT</code>, <code>ja-JP</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-keypadcontroller.html"><code>Alexa.KeypadController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-launcher.html"><code>Alexa.Launcher</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-lockcontroller.html"><code>Alexa.LockController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-media-playback.html"><code>Alexa.Media.Playback</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Music, Radio, Podcast</p>
+      </td><td>
+        <p><code>en-US</code>, <code>es-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-media-playqueue.html"><code>Alexa.Media.PlayQueue</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Music, Radio, Podcast</p>
+      </td><td>
+        <p><code>en-US</code>, <code>es-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-media-search.html"><code>Alexa.Media.Search</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Music, Radio, Podcast</p>
+      </td><td>
+        <p><code>en-US</code>, <code>es-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-modecontroller.html"><code>Alexa.ModeController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home, AVS</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-motionsensor.html"><code>Alexa.MotionSensor</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>,  <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-percentagecontroller.html"><code>Alexa.PercentageController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>,  <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>,  <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-playbackcontroller.html"><code>Alexa.PlaybackController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Entertainment, <br />
+Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-playbackcontroller.html"><code>Alexa.PlaybackStateReporter</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Entertainment, <br />
+Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-powercontroller.html"><code>Alexa.PowerController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home,  <br />
+Video, AVS</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-powerlevelcontroller.html"><code>Alexa.PowerLevelController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>it-IT</code>, <code>ja-JP</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-proactivenotificationsource.html"><code>Alexa.ProactiveNotificationSource</code></a></p>
+      </td><td>
+        <p>3.0</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p>Notifications for device state: <code>de-DE</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>it-IT</code> <br />
+Notifications for cooking: <code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-rangecontroller.html"><code>Alexa.RangeController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home, AVS</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-recordcontroller.html"><code>Alexa.RecordController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-remotevideoplayer.html"><code>Alexa.RemoteVideoPlayer</code></a></p>
+      </td><td>
+        <p>3.1</p>
+      </td><td>
+        <p>Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-rtcsessioncontroller.html"><code>Alexa.RTCSessionController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-US</code>, <code>es-ES</code>,  <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-scenecontroller.html"><code>Alexa.SceneController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-securitypanelcontroller.html"><code>Alexa.SecurityPanelController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-securitypanelcontroller-alert.html"><code>Alexa.SecurityPanelController.Alert</code></a></p>
+      </td><td>
+        <p>1.1</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-US</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-seekcontroller.html"><code>Alexa.SeekController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-simpleeventsource.html"><code>Alexa.SimpleEventSource</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-smartvision-objectdetectionsensor.html"><code>Alexa.SmartVision.ObjectDetectionSensor</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home Security</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-speaker.html"><code>Alexa.Speaker</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Entertainment,  <br />
+Video</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>it-IT</code>, <code>ja-JP</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-stepspeaker.html"><code>Alexa.StepSpeaker</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Entertainment,  <br />
+Video</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>it-IT</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-temperaturesensor.html"><code>Alexa.TemperatureSensor</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>,  <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-thermostatcontroller.html"><code>Alexa.ThermostatController</code></a></p>
+      </td><td>
+        <p>3.1</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>,  <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-thermostatcontroller-configuration.html"><code>Alexa.ThermostatController.Configuration</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-thermostatcontroller-hvac-components.html"><code>Alexa.ThermostatController.HVAC.Components</code></a></p>
+      </td><td>
+        <p>1.0</p>
+      </td><td>
+        <p>Smart Home Energy</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-thermostatcontroller-schedule.html"><code>Alexa.ThermostatController.Schedule</code></a></p>
+      </td><td>
+        <p>3.2</p>
+      </td><td>
+        <p>Smart Home</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-timeholdcontroller.html"><code>Alexa.TimeHoldController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Cooking</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-togglecontroller.html"><code>Alexa.ToggleController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home, AVS</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>,  <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-uicontroller.html"><code>Alexa.UIController</code></a></p>
+      </td><td>
+        <p>3.0</p>
+      </td><td>
+        <p>Video</p>
+      </td><td>
+        <p><code>en-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-userpreference.html"><code>Alexa.UserPreference</code></a></p>
+      </td><td>
+        <p>2.0</p>
+      </td><td>
+        <p>Music, Radio, Podcast</p>
+      </td><td>
+        <p><code>en-US</code>, <code>es-US</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-videorecorder.html"><code>Alexa.VideoRecorder</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Video</p>
+      </td><td>
+        <p><code>ar-SA</code>, <code>de-DE</code>, <code>en-AU</code>, <code>en-CA</code>, <code>en-GB</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>es-MX</code>, <code>es-US</code>, <code>fr-CA</code>, <code>fr-FR</code>, <code>hi-IN</code>, <code>it-IT</code>, <code>ja-JP</code>, <code>pt-BR</code></p>
+
+      </td></tr><tr><td>
+        <p><a href="../device-apis/alexa-wakeonlancontroller.html"><code>Alexa.WakeOnLANController</code></a></p>
+      </td><td>
+        <p>3</p>
+      </td><td>
+        <p>Smart Home Entertainment</p>
+      </td><td>
+        <p><code>de-DE</code>, <code>en-AU</code>, <code>en-IN</code>, <code>en-US</code>, <code>es-ES</code>, <code>it-IT</code>, <code>ja-JP</code></p>
+
+      </td></tr></tbody></table>
+
+
+
+
diff --git a/tests/non_packaged_scripts/__init__.py b/tests/non_packaged_scripts/__init__.py
new file mode 100644
index 00000000000..852c52a8293
--- /dev/null
+++ b/tests/non_packaged_scripts/__init__.py
@@ -0,0 +1 @@
+"""Tests for the non-packaged scripts in the script directory."""
diff --git a/tests/non_packaged_scripts/snapshots/test_alexa_locales.ambr b/tests/non_packaged_scripts/snapshots/test_alexa_locales.ambr
new file mode 100644
index 00000000000..bad47eedf53
--- /dev/null
+++ b/tests/non_packaged_scripts/snapshots/test_alexa_locales.ambr
@@ -0,0 +1,62 @@
+# serializer version: 1
+# name: test_alexa_locales
+  '''
+  Missing interfaces:
+  ['Alexa.ApplicationStateReporter',
+   'Alexa.AuthorizationController',
+   'Alexa.AutomationManagement',
+   'Alexa.Commissionable',
+   'Alexa.Cooking',
+   'Alexa.DataController',
+   'Alexa.InventoryLevelSensor',
+   'Alexa.InventoryLevelUsageSensor',
+   'Alexa.InventoryUsageSensor',
+   'Alexa.KeypadController',
+   'Alexa.Launcher',
+   'Alexa.PercentageController',
+   'Alexa.ProactiveNotificationSource',
+   'Alexa.RecordController',
+   'Alexa.RemoteVideoPlayer',
+   'Alexa.RTCSessionController',
+   'Alexa.SimpleEventSource',
+   'Alexa.UIController',
+   'Alexa.UserPreference',
+   'Alexa.VideoRecorder',
+   'Alexa.WakeOnLANController']
+  
+  
+  Interfaces where upstream locales are not subsets of the core locales:
+  []
+  
+  
+  Interfaces checked ok:
+  ['AlexaBrightnessController',
+   'AlexaCameraStreamController',
+   'AlexaChannelController',
+   'AlexaColorController',
+   'AlexaColorTemperatureController',
+   'AlexaContactSensor',
+   'AlexaDoorbellEventSource',
+   'AlexaEndpointHealth',
+   'AlexaEqualizerController',
+   'AlexaInputController',
+   'AlexaLockController',
+   'AlexaModeController',
+   'AlexaMotionSensor',
+   'AlexaPlaybackController',
+   'AlexaPlaybackStateReporter',
+   'AlexaPowerController',
+   'AlexaPowerLevelController',
+   'AlexaRangeController',
+   'AlexaSceneController',
+   'AlexaSecurityPanelController',
+   'AlexaSeekController',
+   'AlexaSpeaker',
+   'AlexaStepSpeaker',
+   'AlexaTemperatureSensor',
+   'AlexaThermostatController',
+   'AlexaTimeHoldController',
+   'AlexaToggleController']
+  
+  '''
+# ---
diff --git a/tests/non_packaged_scripts/test_alexa_locales.py b/tests/non_packaged_scripts/test_alexa_locales.py
new file mode 100644
index 00000000000..ea139f7de8e
--- /dev/null
+++ b/tests/non_packaged_scripts/test_alexa_locales.py
@@ -0,0 +1,29 @@
+"""Test the alexa_locales script."""
+
+from pathlib import Path
+
+import pytest
+import requests_mock
+from syrupy import SnapshotAssertion
+
+from script.alexa_locales import SITE, run_script
+
+
+def test_alexa_locales(
+    capsys: pytest.CaptureFixture[str],
+    requests_mock: requests_mock.Mocker,
+    snapshot: SnapshotAssertion,
+) -> None:
+    """Test alexa_locales script."""
+    fixture_file = (
+        Path(__file__).parent.parent / "fixtures/non_packaged_scripts/alexa_locales.txt"
+    )
+    requests_mock.get(
+        SITE,
+        text=fixture_file.read_text(encoding="utf-8"),
+    )
+
+    run_script()
+
+    captured = capsys.readouterr()
+    assert captured.out == snapshot