diff --git a/homeassistant/components/lametric/config_flow.py b/homeassistant/components/lametric/config_flow.py
index 23b0062fc82..8a7bd098d75 100644
--- a/homeassistant/components/lametric/config_flow.py
+++ b/homeassistant/components/lametric/config_flow.py
@@ -48,6 +48,8 @@ from homeassistant.util.network import is_link_local
 
 from .const import DOMAIN, LOGGER
 
+DEVICES_URL = "https://developer.lametric.com/user/devices"
+
 
 class LaMetricFlowHandler(AbstractOAuth2FlowHandler, domain=DOMAIN):
     """Handle a LaMetric config flow."""
@@ -164,6 +166,9 @@ class LaMetricFlowHandler(AbstractOAuth2FlowHandler, domain=DOMAIN):
         return self.async_show_form(
             step_id="manual_entry",
             data_schema=vol.Schema(schema),
+            description_placeholders={
+                "devices_url": DEVICES_URL,
+            },
             errors=errors,
         )
 
diff --git a/homeassistant/components/lametric/strings.json b/homeassistant/components/lametric/strings.json
index f3fa1e81112..acf69239830 100644
--- a/homeassistant/components/lametric/strings.json
+++ b/homeassistant/components/lametric/strings.json
@@ -24,7 +24,7 @@
         },
         "data_description": {
           "host": "The IP address or hostname of your LaMetric TIME on your network.",
-          "api_key": "You can find this API key in the [devices page in your LaMetric developer account](https://developer.lametric.com/user/devices)."
+          "api_key": "You can find this API key in the [devices page in your LaMetric developer account]({devices_url})."
         }
       },
       "cloud_select_device": {