diff --git a/src/Samples/Toolkit.SampleApp.Maui/MainPage.xaml b/src/Samples/Toolkit.SampleApp.Maui/MainPage.xaml
index 93a793f6c..83f1bd03f 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/MainPage.xaml
+++ b/src/Samples/Toolkit.SampleApp.Maui/MainPage.xaml
@@ -2,6 +2,7 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              x:Class="Toolkit.SampleApp.Maui.MainPage">
+    <Grid>
         <ListView x:Name="SamplesList" ItemSelected="SamplesList_ItemSelected">
             <ListView.ItemTemplate>
                 <DataTemplate>
@@ -9,4 +10,50 @@
                 </DataTemplate>
             </ListView.ItemTemplate>
         </ListView>
+
+        <Border  x:Name="ApiKeyWindow" Background="#ccffffff" IsVisible="false">
+            <Grid HorizontalOptions="Center" VerticalOptions="Center" Background="White">
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="Auto" />
+                    <RowDefinition />
+                </Grid.RowDefinitions>
+                <Border Background="CornflowerBlue" Padding="10" StrokeThickness="1" Stroke="CornflowerBlue">
+                    <Grid>
+                        <Label Text="API Key Required" FontSize="14" TextColor="White" />
+                        <Button Text="❌" TextColor="White" HorizontalOptions="End" FontFamily="Segoe UI Symbol"
+                                Padding="10" Margin="-10" Background="Transparent" BorderWidth="0"
+                                Clicked="CancelApiKey_Click" />
+                    </Grid>
+                </Border>
+                <Border StrokeThickness="1" Stroke="CornflowerBlue" Padding="20" Grid.Row="1" Margin="0,-1,0,0">
+                    <VerticalStackLayout>
+                        <Label Text="This functional test requires an API Key to access ArcGIS Location Services." Grid.Row="1" />
+                        <Label Text="Enter API Key:" Margin="0,10,0,5" />
+                        <Entry x:Name="ApiKeyInput" MaximumWidthRequest="475" />
+                        <Button HorizontalOptions="End" Text="Save" Padding="20,5" 
+                                Background="CornflowerBlue" TextColor="White" BorderColor="White"
+                                Clicked="SaveApiKey_Click" />
+                        <Label MaxLines="5" Margin="0,10,0,0" >
+                            <Label.FormattedText>
+                                <FormattedString>
+                                    <Span Text="You can get or create an API key from " />
+                                    <Span Text="your developer dashboard" TextDecorations="Underline" TextColor="Blue" >
+                                        <Span.GestureRecognizers>
+                                            <TapGestureRecognizer Tapped="DashboardLinkTapped" />
+                                        </Span.GestureRecognizers>
+                                    </Span>
+                                    <Span Text="." />
+                                </FormattedString>
+                            </Label.FormattedText>
+                        </Label>
+                        <Label MaxLines="5" Margin="0,10,0,0" TextDecorations="Underline" TextColor="Blue" Text="More info on API Keys">
+                            <Label.GestureRecognizers>
+                                <TapGestureRecognizer Tapped="MoreInfoLinkTapped" />
+                            </Label.GestureRecognizers>
+                        </Label>
+                    </VerticalStackLayout>
+                </Border>
+            </Grid>
+        </Border>
+    </Grid>
 </ContentPage>
diff --git a/src/Samples/Toolkit.SampleApp.Maui/MainPage.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/MainPage.xaml.cs
index 9982e4fab..52f6f9b4e 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/MainPage.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/MainPage.xaml.cs
@@ -1,4 +1,7 @@
-namespace Toolkit.SampleApp.Maui;
+using Esri.ArcGISRuntime;
+using Esri.ArcGISRuntime.Mapping;
+
+namespace Toolkit.SampleApp.Maui;
 
 public partial class MainPage : ContentPage
 {
@@ -6,6 +9,22 @@ public MainPage()
     {
         InitializeComponent();
         SamplesList.ItemsSource = SampleDatasource.Current.Samples;
+        CheckAPIKey();
+    }
+
+    private async void CheckAPIKey()
+    {
+        string key = Preferences.Get("APIKey", string.Empty);
+        if (!string.IsNullOrWhiteSpace(key))
+        {
+            try
+            {
+                var basemap = new Basemap(BasemapStyle.ArcGISStreets) { ApiKey = key };
+                await basemap.LoadAsync();
+                ArcGISRuntimeEnvironment.ApiKey = key;
+            }
+            catch { }
+        }
     }
 
     private async void SamplesList_ItemSelected(object? sender, SelectedItemChangedEventArgs e)
@@ -14,15 +33,69 @@ private async void SamplesList_ItemSelected(object? sender, SelectedItemChangedE
         if (sample != null)
         {
             SamplesList.SelectedItem = null;
+            ApiKeyWindow.IsVisible = false;
+            ApiKeyTask?.TrySetResult(false);
+            if (sample.ApiKeyRequired && string.IsNullOrEmpty(ArcGISRuntimeEnvironment.ApiKey))
+            {
+                bool ok = await ShowApiKeyWindow();
+                if (!ok) return;
+            }
             try
             {
                 await Navigation.PushAsync(Activator.CreateInstance(sample.Page) as Page);
             }
-            catch(Exception ex)
+            catch (Exception ex)
             {
                 System.Diagnostics.Debug.WriteLine(ex);
             }
         }
     }
-}
 
+    private TaskCompletionSource<bool>? ApiKeyTask;
+
+    private Task<bool> ShowApiKeyWindow()
+    {
+        ApiKeyTask?.TrySetResult(false);
+        ApiKeyWindow.IsVisible = true;
+        ApiKeyTask = new TaskCompletionSource<bool>();
+        return ApiKeyTask.Task;
+    }
+
+    private void CancelApiKey_Click(object sender, EventArgs e)
+    {
+        ApiKeyWindow.IsVisible = false;
+        ApiKeyTask?.TrySetResult(false);
+    }
+
+    private async void SaveApiKey_Click(object sender, EventArgs e)
+    {
+        string key = ApiKeyInput.Text;
+        if (!string.IsNullOrWhiteSpace(key))
+        {
+            // Test API Key
+            try
+            {
+                var basemap = new Basemap(BasemapStyle.ArcGISStreets) { ApiKey = key };
+                await basemap.LoadAsync();
+                ArcGISRuntimeEnvironment.ApiKey = key;
+                Preferences.Set("APIKey", key);
+                ApiKeyWindow.IsVisible = false;
+                ApiKeyTask?.TrySetResult(true);
+            }
+            catch (System.Exception ex)
+            {
+                _ = DisplayAlert("Invalid API Key", ex.Message, "OK");
+            }
+        }
+    }
+
+    private void DashboardLinkTapped(object sender, TappedEventArgs e)
+    {
+        Microsoft.Maui.ApplicationModel.Launcher.OpenAsync("https://developers.arcgis.com/api-keys/");
+    }
+
+    private void MoreInfoLinkTapped(object sender, TappedEventArgs e)
+    {
+        Microsoft.Maui.ApplicationModel.Launcher.OpenAsync("https://developers.arcgis.com/net/security-and-authentication/#api-keys");
+    }
+}
\ No newline at end of file
diff --git a/src/Samples/Toolkit.SampleApp.Maui/SampleDatasource.cs b/src/Samples/Toolkit.SampleApp.Maui/SampleDatasource.cs
index afdd9694f..07ed2fc42 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/SampleDatasource.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/SampleDatasource.cs
@@ -27,26 +27,28 @@ public static SampleDatasource Current
             }
         }
     }
-    public class SampleInfoAttributeAttribute : Attribute
+    public class SampleInfoAttribute : Attribute
     {
-        public SampleInfoAttributeAttribute()
+        public SampleInfoAttribute()
         {
         }
         public string? Category { get; set; }
         public string? Description { get; set; }
         public string? DisplayName { get; set; }
+        public bool ApiKeyRequired { get; set; }
     }
     public class Sample
     {
         public Sample(Type page)
         {
             Page = page;
-            var attr = page.GetTypeInfo().GetCustomAttribute(typeof(SampleInfoAttributeAttribute)) as SampleInfoAttributeAttribute;
+            var attr = page.GetTypeInfo().GetCustomAttribute(typeof(SampleInfoAttribute)) as SampleInfoAttribute;
             if (attr != null)
             {
                 Name = attr.DisplayName;
                 Category = attr.Category;
                 Description = attr.Description;
+                ApiKeyRequired = attr.ApiKeyRequired;
             }
             if (string.IsNullOrEmpty(Name))
             {
@@ -71,5 +73,7 @@ public Sample(Type page)
         public string? Description { get; set; }
 
         public string? Category { get; set; }
+
+        public bool ApiKeyRequired { get; set; }
     }
 }
\ No newline at end of file
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/BasemapGalleryAppearanceSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/BasemapGalleryAppearanceSample.xaml.cs
index 0aa916a33..88cc90e8a 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/BasemapGalleryAppearanceSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/BasemapGalleryAppearanceSample.xaml.cs
@@ -4,7 +4,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "BasemapGallery", Description = "Appearance customization sample")]
+    [SampleInfo(Category = "BasemapGallery", Description = "Appearance customization sample", ApiKeyRequired = true)]
     public partial class BasemapGalleryAppearanceSample : ContentPage
     {
         public BasemapGalleryAppearanceSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/BasemapGalleryBehaviorSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/BasemapGalleryBehaviorSample.xaml.cs
index 4f973d297..e9c0a8db8 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/BasemapGalleryBehaviorSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/BasemapGalleryBehaviorSample.xaml.cs
@@ -5,7 +5,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "BasemapGallery", Description = "Exercises various bindings, properties, and interaction behaviors")]
+    [SampleInfo(Category = "BasemapGallery", Description = "Exercises various bindings, properties, and interaction behaviors", ApiKeyRequired = true)]
     public partial class BasemapGalleryBehaviorSample : ContentPage
     {
         public BasemapGalleryBehaviorSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/BookmarksViewSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/BookmarksViewSample.xaml.cs
index b0f83e8bd..1a6137a9a 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/BookmarksViewSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/BookmarksViewSample.xaml.cs
@@ -6,7 +6,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "BookmarksView", Description = "BookmarksView with MapView sample")]
+    [SampleInfo(Category = "BookmarksView", Description = "BookmarksView with MapView sample")]
     public partial class BookmarksViewSample : ContentPage
     {
         private const string webMapOneUrl = "https://arcgisruntime.maps.arcgis.com/home/item.html?id=e50fafe008ac4ce4ad2236de7fd149c3";
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/BookmarksViewTemplatedSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/BookmarksViewTemplatedSample.xaml.cs
index 4d6f8d375..34365b04e 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/BookmarksViewTemplatedSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/BookmarksViewTemplatedSample.xaml.cs
@@ -3,7 +3,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "BookmarksView", Description = "BookmarksView with custom item templates")]
+    [SampleInfo(Category = "BookmarksView", Description = "BookmarksView with custom item templates")]
     public partial class BookmarksViewTemplatedSample : ContentPage
     {
         public BookmarksViewTemplatedSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/CompassMapViewSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/CompassMapViewSample.xaml.cs
index 3831ebbe6..3ad16d2dd 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/CompassMapViewSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/CompassMapViewSample.xaml.cs
@@ -8,7 +8,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "Compass", Description = "Compass with MapView sample")]
+    [SampleInfo(Category = "Compass", Description = "Compass with MapView sample")]
     public partial class CompassMapViewSample : ContentPage
     {
         public CompassMapViewSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/CompassSceneViewSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/CompassSceneViewSample.xaml.cs
index 153b644a7..47b93eaea 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/CompassSceneViewSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/CompassSceneViewSample.xaml.cs
@@ -3,7 +3,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "Compass", Description = "Compass with SceneView sample")]
+    [SampleInfo(Category = "Compass", Description = "Compass with SceneView sample")]
     public partial class CompassSceneViewSample : ContentPage
     {
         public CompassSceneViewSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/FloorFilterSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/FloorFilterSample.xaml.cs
index 44f3e3267..59f9a8175 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/FloorFilterSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/FloorFilterSample.xaml.cs
@@ -1,7 +1,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "FloorFilter", Description = "Demonstrates FloorFilter with a floor-aware map.")]
+    [SampleInfo(Category = "FloorFilter", Description = "Demonstrates FloorFilter with a floor-aware map.")]
     public partial class FloorFilterSample : ContentPage
     {
         public FloorFilterSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/LegendSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/LegendSample.xaml.cs
index 843cd04f7..8984e7c36 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/LegendSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/LegendSample.xaml.cs
@@ -4,7 +4,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
 	[XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "Legend", Description = "Legend with MapView sample")]
+    [SampleInfo(Category = "Legend", Description = "Legend with MapView sample")]
     public partial class LegendSample : ContentPage
 	{
 		public LegendSample ()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/OverviewMapSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/OverviewMapSample.xaml.cs
index b29168ad2..4c9d215aa 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/OverviewMapSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/OverviewMapSample.xaml.cs
@@ -5,7 +5,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "OverviewMap", Description = "Demonstrates various scenarios for the OverviewMap control.")]
+    [SampleInfo(Category = "OverviewMap", Description = "Demonstrates various scenarios for the OverviewMap control.")]
     public partial class OverviewMapSample : ContentPage
     {
         private bool _symbolToggle;
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/PopupViewerSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/PopupViewerSample.xaml.cs
index 91e780a72..4c8120d60 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/PopupViewerSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/PopupViewerSample.xaml.cs
@@ -8,7 +8,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "PopupViewer", Description = "Use PopupViewer to display detailed feature information")]
+    [SampleInfo(Category = "PopupViewer", Description = "Use PopupViewer to display detailed feature information")]
     public partial class PopupViewerSample : ContentPage
     {
         public PopupViewerSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/ScaleLineSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/ScaleLineSample.xaml.cs
index 72a67570e..127c5e4d1 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/ScaleLineSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/ScaleLineSample.xaml.cs
@@ -3,7 +3,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
 	[XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "ScaleLine", Description = "Demonstrates ScaleLine.")]
+    [SampleInfo(Category = "ScaleLine", Description = "Demonstrates ScaleLine.")]
     public partial class ScaleLineSample : ContentPage
 	{
 		public ScaleLineSample ()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewCustomizationSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewCustomizationSample.xaml.cs
index 28e6ed1b4..12bf96ed0 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewCustomizationSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewCustomizationSample.xaml.cs
@@ -6,7 +6,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "SearchView", Description = "Exercises bindings and advanced customization options.")]
+    [SampleInfo(Category = "SearchView", Description = "Exercises bindings and advanced customization options.", ApiKeyRequired = true)]
     public partial class SearchViewCustomizationSample : ContentPage
     {
         public SearchViewCustomizationSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewSample.xaml.cs
index 1cb56f36b..29d9d010d 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewSample.xaml.cs
@@ -3,7 +3,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "SearchView", Description = "Demonstrates SearchView used with a map.")]
+    [SampleInfo(Category = "SearchView", Description = "Demonstrates SearchView used with a map.", ApiKeyRequired = true)]
     public partial class SearchViewSample : ContentPage
     {
         public SearchViewSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewSceneSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewSceneSample.xaml.cs
index 78aa19638..400c4c206 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewSceneSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/SearchViewSceneSample.xaml.cs
@@ -3,7 +3,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "SearchView", Description = "Demonstrates SearchView used with a scene.")]
+    [SampleInfo(Category = "SearchView", Description = "Demonstrates SearchView used with a scene.", ApiKeyRequired = true)]
     public partial class SearchViewSceneSample : ContentPage
     {
         public SearchViewSceneSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolDisplaySample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolDisplaySample.xaml.cs
index 1b9411694..f988eab08 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolDisplaySample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolDisplaySample.xaml.cs
@@ -5,7 +5,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "SymbolDisplay", Description = "Renders a symbol")]
+    [SampleInfo(Category = "SymbolDisplay", Description = "Renders a symbol")]
     public partial class SymbolDisplaySample : ContentPage
     {
         public SymbolDisplaySample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolEditorSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolEditorSample.xaml.cs
index 9b9a64549..5182d3d0a 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolEditorSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/SymbolEditorSample.xaml.cs
@@ -3,7 +3,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "SymbolDisplay", Description = "Dynamically edit a symbol")]
+    [SampleInfo(Category = "SymbolDisplay", Description = "Dynamically edit a symbol")]
     public partial class SymbolEditorSample : ContentPage
     {
         public SymbolEditorSample()
diff --git a/src/Samples/Toolkit.SampleApp.Maui/Samples/UtilityNetworkTraceToolSample.xaml.cs b/src/Samples/Toolkit.SampleApp.Maui/Samples/UtilityNetworkTraceToolSample.xaml.cs
index 7bb4a25c6..bf3b6c54b 100644
--- a/src/Samples/Toolkit.SampleApp.Maui/Samples/UtilityNetworkTraceToolSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.Maui/Samples/UtilityNetworkTraceToolSample.xaml.cs
@@ -4,7 +4,7 @@
 namespace Toolkit.SampleApp.Maui.Samples
 {
     [XamlCompilation(XamlCompilationOptions.Compile)]
-    [SampleInfoAttribute(Category = "UtilityNetworkTraceTool", Description = "UtilityNetworkTraceTool")]
+    [SampleInfo(Category = "UtilityNetworkTraceTool", Description = "UtilityNetworkTraceTool")]
     public partial class UtilityNetworkTraceToolSample : ContentPage
     {
         private const string WebmapURL = "https://www.arcgis.com/home/item.html?id=471eb0bf37074b1fbb972b1da70fb310";
diff --git a/src/Samples/Toolkit.SampleApp.UWP/MainPage.xaml b/src/Samples/Toolkit.SampleApp.UWP/MainPage.xaml
index 832454ab7..388167c49 100644
--- a/src/Samples/Toolkit.SampleApp.UWP/MainPage.xaml
+++ b/src/Samples/Toolkit.SampleApp.UWP/MainPage.xaml
@@ -19,12 +19,12 @@
         <SplitView  Grid.Row="1" x:Name="splitView">
             <SplitView.Pane>
                 <ListView x:Name="sampleView" Grid.Row="1" SelectionMode="None"
-										IsRightTapEnabled="False"
-										IsItemClickEnabled="True"
-										IsHoldingEnabled="False"
-										IsDoubleTapEnabled="False"
-										ItemClick="sampleView_ItemClick"
-										ItemsSource="{Binding Samples, Source={StaticResource vm}}" >
+                          IsRightTapEnabled="False"
+                          IsItemClickEnabled="True"
+                          IsHoldingEnabled="False"
+                          IsDoubleTapEnabled="False"
+                          ItemClick="sampleView_ItemClick"
+                          ItemsSource="{Binding Samples, Source={StaticResource vm}}" >
                     <ListView.ItemTemplate>
                         <DataTemplate>
                             <Grid ToolTipService.ToolTip="{Binding Description}">
@@ -46,6 +46,38 @@
             </SplitView.Pane>
             <Grid>
                 <Frame x:Name="rootFrame" Background="{ThemeResource ApplicationForegroundThemeBrush}" />
+
+
+                <Border  x:Name="ApiKeyWindow" Background="#ccffffff" d:Visibility="Visible" Visibility="Collapsed">
+                    <Grid HorizontalAlignment="Center" VerticalAlignment="Center" Background="White">
+                        <Grid.RowDefinitions>
+                            <RowDefinition Height="Auto" />
+                            <RowDefinition />
+                        </Grid.RowDefinitions>
+                        <Border Background="CornflowerBlue" Padding="10">
+                            <Grid>
+                                <TextBlock Text="API Key Required" FontSize="14" Foreground="White" />
+                                <Button Content="❌" Foreground="White" HorizontalAlignment="Right" FontFamily="Segoe UI Symbol"
+                                Padding="10" Margin="-10" Background="Transparent" BorderThickness="0"
+                                Click="CancelApiKey_Click" />
+                            </Grid>
+                        </Border>
+                        <Border BorderThickness="1" BorderBrush="CornflowerBlue" Padding="20" Grid.Row="1">
+                            <StackPanel>
+                                <TextBlock Text="This functional test requires an API Key to access ArcGIS Location Services." Grid.Row="1" />
+                                <TextBlock Text="Enter API Key:" Margin="0,10,0,5" />
+                                <TextBox x:Name="ApiKeyInput" Width="475" />
+                                <Button HorizontalAlignment="Right" Content="Save" Padding="20,5" 
+                                Background="CornflowerBlue" Foreground="White" BorderBrush="White"
+                                Click="SaveApiKey_Click" />
+                                <TextBlock TextWrapping="Wrap" Margin="0,10,0,0">
+                            <Span>You can get or create an API key from <Hyperlink NavigateUri="https://developers.arcgis.com/api-keys/">your developer dashboard</Hyperlink>.</Span><LineBreak></LineBreak>
+                            <Hyperlink NavigateUri="https://developers.arcgis.com/net/security-and-authentication/#api-keys">More info on API Keys</Hyperlink>
+                                </TextBlock>
+                            </StackPanel>
+                        </Border>
+                    </Grid>
+                </Border>
             </Grid>
         </SplitView>
      
diff --git a/src/Samples/Toolkit.SampleApp.UWP/MainPage.xaml.cs b/src/Samples/Toolkit.SampleApp.UWP/MainPage.xaml.cs
index 60df5e7f3..61d700c29 100644
--- a/src/Samples/Toolkit.SampleApp.UWP/MainPage.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.UWP/MainPage.xaml.cs
@@ -4,9 +4,12 @@
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices.WindowsRuntime;
+using System.Threading.Tasks;
 using Windows.Foundation;
 using Windows.Foundation.Collections;
+using Windows.Storage;
 using Windows.UI.Core;
+using Windows.UI.Popups;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
 using Windows.UI.Xaml.Controls.Primitives;
@@ -29,8 +32,25 @@ public MainPage()
             this.InitializeComponent();
             this.Loaded += RootFrame_Loaded;
             rootFrame.Navigated += RootFrame_Navigated;
+            //CheckAPIKey();
         }
-        private void RootFrame_Loaded(object sender, RoutedEventArgs e)
+
+        private async void CheckAPIKey()
+        {
+            ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
+            if(localSettings.Values.ContainsKey("APIKey") && localSettings.Values["APIKey"] is string key)
+            {
+                try
+                {
+                    var basemap = new Mapping.Basemap(Mapping.BasemapStyle.ArcGISStreets) { ApiKey = key };
+                    await basemap.LoadAsync();
+                    ArcGISRuntimeEnvironment.ApiKey = key;
+                }
+                catch { }
+            }
+        }
+
+        private async void RootFrame_Loaded(object sender, RoutedEventArgs e)
         {
             var currentView = SystemNavigationManager.GetForCurrentView();
             currentView.BackRequested += (s, args) =>
@@ -50,6 +70,14 @@ private void RootFrame_Loaded(object sender, RoutedEventArgs e)
             }
             else
             {
+
+                ApiKeyWindow.Visibility = Visibility.Collapsed;
+                ApiKeyTask?.TrySetResult(false);
+                if (sample.ApiKeyRequired && string.IsNullOrEmpty(ArcGISRuntimeEnvironment.ApiKey))
+                {
+                    bool ok = await ShowApiKeyWindow();
+                    if (!ok) return;
+                }
                 if (!rootFrame.Navigate(sample.Page))
                 {
                     throw new Exception("Failed to create initial page");
@@ -80,9 +108,17 @@ private void sampleView_ItemClick(object sender, ItemClickEventArgs e)
             NavigateSample(sample);
         }
 
-        public void NavigateSample(Sample sample)
+        public async void NavigateSample(Sample sample)
         {
             if (sample == null) return;
+
+            ApiKeyWindow.Visibility = Visibility.Collapsed;
+            ApiKeyTask?.TrySetResult(false);
+            if (sample.ApiKeyRequired && string.IsNullOrEmpty(ArcGISRuntimeEnvironment.ApiKey))
+            {
+                bool ok = await ShowApiKeyWindow();
+                if (!ok) return;
+            }
             if (!rootFrame.Navigate(sample.Page, null))
             {
                 throw new Exception("Failed to create initial page");
@@ -92,6 +128,46 @@ public Frame SampleFrame
         {
             get { return rootFrame; }
         }
+
+        public ICollectionView Samples => SampleDatasource.Current.CollectionViewSource.View;
+
+        private TaskCompletionSource<bool> ApiKeyTask; private Task<bool> ShowApiKeyWindow()
+        {
+            ApiKeyTask?.TrySetResult(false);
+            ApiKeyWindow.Visibility = Visibility.Visible;
+            ApiKeyTask = new TaskCompletionSource<bool>();
+            return ApiKeyTask.Task;
+        }
+
+        private void CancelApiKey_Click(object sender, RoutedEventArgs e)
+        {
+            ApiKeyWindow.Visibility = Visibility.Collapsed;
+            ApiKeyTask.TrySetResult(false);
+        }
+
+        private async void SaveApiKey_Click(object sender, RoutedEventArgs e)
+        {
+            string key = ApiKeyInput.Text;
+            if (!string.IsNullOrWhiteSpace(key))
+            {
+                // Test API Key
+                try
+                {
+                    var basemap = new Mapping.Basemap(Mapping.BasemapStyle.ArcGISStreets) { ApiKey = key };
+                    await basemap.LoadAsync();
+                    ArcGISRuntimeEnvironment.ApiKey = key;
+                    ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
+                    localSettings.Values["APIKey"] = key;
+                    ApiKeyWindow.Visibility = Visibility.Collapsed;
+                    ApiKeyTask.TrySetResult(true);
+                }
+                catch (System.Exception ex)
+                {
+                    MessageDialog dialog = new MessageDialog(ex.Message, "Invalid API Key");
+                    await dialog.ShowAsync();
+                }
+            };
+        }
     }
 
     public class SamplesVM
diff --git a/src/Samples/Toolkit.SampleApp.UWP/SampleDatasource.cs b/src/Samples/Toolkit.SampleApp.UWP/SampleDatasource.cs
index bfd627e12..393870a36 100644
--- a/src/Samples/Toolkit.SampleApp.UWP/SampleDatasource.cs
+++ b/src/Samples/Toolkit.SampleApp.UWP/SampleDatasource.cs
@@ -9,18 +9,19 @@
 namespace Esri.ArcGISRuntime.Toolkit.SampleApp
 {
     [AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
-    public class SampleInfoAttributeAttribute : Attribute
+    public class SampleInfoAttribute : Attribute
     {
-        public SampleInfoAttributeAttribute()
+        public SampleInfoAttribute()
         {
         }
         public string Category { get; set; }
         public string Description { get; set; }
         public string DisplayName { get; set; }
+        public bool ApiKeyRequired { get; set; }
     }
 
     [Bindable]
-	public class SampleDatasource
+    public class SampleDatasource
     {
         private SampleDatasource() 
         {
@@ -29,14 +30,15 @@ where t.GetTypeInfo().IsSubclassOf(typeof(Page)) && t.FullName.Contains(".Sample
                 select t;
 
             Samples = (from p in pages select new Sample() { Page = p }).ToArray();
-			foreach(var sample in Samples)
-			{
-				var attr = sample.Page.GetTypeInfo().GetCustomAttribute(typeof(SampleInfoAttributeAttribute)) as SampleInfoAttributeAttribute;
+            foreach(var sample in Samples)
+            {
+                var attr = sample.Page.GetTypeInfo().GetCustomAttribute(typeof(SampleInfoAttribute)) as SampleInfoAttribute;
                 if (attr != null)
                 {
                     sample.Category = attr.Category;
                     sample.Description = attr.Description;
                     sample.Name = attr.DisplayName;
+                    sample.ApiKeyRequired = attr.ApiKeyRequired;
                 }
                 if (string.IsNullOrEmpty(sample.Name))
                 {
@@ -51,7 +53,7 @@ where t.GetTypeInfo().IsSubclassOf(typeof(Page)) && t.FullName.Contains(".Sample
                         sample.Category = sample.Page.Namespace.Substring(sample.Page.Namespace.IndexOf(".Samples.") + 9);
                     }
                 }
-			}
+            }
         }
 
         public IEnumerable<Sample> Samples { get; private set; }
@@ -67,49 +69,49 @@ public static SampleDatasource Current
             }
         }
 
-		public IEnumerable<SampleGroup> SamplesByCategory
-		{
-			get
-			{
-				var groups = (from item in Samples
-							 orderby item.Category
-							 group item by item.Category into g
-							 select new SampleGroup(g) { Key = g.Key ?? "Misc" });
-				return groups;
-			}
-		}
-		CollectionViewSource m_CollectionViewSource;
-		public CollectionViewSource CollectionViewSource
-		{
-			get
-			{
-				if(m_CollectionViewSource == null)
-				{
-					m_CollectionViewSource = new CollectionViewSource()
-					{
-						IsSourceGrouped = true,
-						Source = SamplesByCategory,
-						ItemsPath = new PropertyPath("Items")
-					};
-				}
-				return m_CollectionViewSource;
-			}
-		}
+        public IEnumerable<SampleGroup> SamplesByCategory
+        {
+            get
+            {
+                var groups = (from item in Samples
+                             orderby item.Category
+                             group item by item.Category into g
+                             select new SampleGroup(g) { Key = g.Key ?? "Misc" });
+                return groups;
+            }
+        }
+        CollectionViewSource m_CollectionViewSource;
+        public CollectionViewSource CollectionViewSource
+        {
+            get
+            {
+                if(m_CollectionViewSource == null)
+                {
+                    m_CollectionViewSource = new CollectionViewSource()
+                    {
+                        IsSourceGrouped = true,
+                        Source = SamplesByCategory,
+                        ItemsPath = new PropertyPath("Items")
+                    };
+                }
+                return m_CollectionViewSource;
+            }
+        }
     }
-	[Bindable]
-	public class SampleGroup
-	{
-		public SampleGroup(IEnumerable<Sample> samples)
-		{
-			Items = samples;
-		}
-		public string Key { get; set; }
+    [Bindable]
+    public class SampleGroup
+    {
+        public SampleGroup(IEnumerable<Sample> samples)
+        {
+            Items = samples;
+        }
+        public string Key { get; set; }
 
-		public IEnumerable<Sample> Items { get; private set; }
-	}
+        public IEnumerable<Sample> Items { get; private set; }
+    }
 
-	[Bindable]
-	public class Sample
+    [Bindable]
+    public class Sample
     {
         public Type Page { get; set; }
         
@@ -117,7 +119,7 @@ public class Sample
         
         public string Description { get; set; }
 
-		public string Category { get; set; }
+        public string Category { get; set; }
 
         public double FontSize
         {
@@ -128,5 +130,6 @@ public double FontSize
             }
         }
         public int Order { get; set; }
+        public bool ApiKeyRequired { get; set; }
     }
 }
diff --git a/src/Samples/Toolkit.SampleApp.UWP/Samples/BasemapGallery/BasemapGalleryAppearanceSample.xaml.cs b/src/Samples/Toolkit.SampleApp.UWP/Samples/BasemapGallery/BasemapGalleryAppearanceSample.xaml.cs
index a800a9c44..7d805e8a8 100644
--- a/src/Samples/Toolkit.SampleApp.UWP/Samples/BasemapGallery/BasemapGalleryAppearanceSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.UWP/Samples/BasemapGallery/BasemapGalleryAppearanceSample.xaml.cs
@@ -5,6 +5,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.SampleApp.Samples.BasemapGallery
 {
+    [SampleInfo(ApiKeyRequired = true)]
     public sealed partial class BasemapGalleryAppearanceSample : Page
     {
         public BasemapGalleryAppearanceSample()
diff --git a/src/Samples/Toolkit.SampleApp.UWP/Samples/BasemapGallery/BasemapGalleryBehaviorSample.xaml.cs b/src/Samples/Toolkit.SampleApp.UWP/Samples/BasemapGallery/BasemapGalleryBehaviorSample.xaml.cs
index d69a410d1..e4e9fd058 100644
--- a/src/Samples/Toolkit.SampleApp.UWP/Samples/BasemapGallery/BasemapGalleryBehaviorSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.UWP/Samples/BasemapGallery/BasemapGalleryBehaviorSample.xaml.cs
@@ -5,6 +5,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.SampleApp.Samples.BasemapGallery
 {
+    [SampleInfo(ApiKeyRequired = true)]
     public sealed partial class BasemapGalleryBehaviorSample : Page
     {
         public BasemapGalleryBehaviorSample()
diff --git a/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewCustomizationSample.xaml.cs b/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewCustomizationSample.xaml.cs
index d7d8404da..4c6d3f53f 100644
--- a/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewCustomizationSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewCustomizationSample.xaml.cs
@@ -11,6 +11,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.SampleApp.Samples.SearchView
 {
+    [SampleInfo(ApiKeyRequired = true)]
     public sealed partial class SearchViewCustomizationSample : Page
     {
         public SearchViewCustomizationSample()
diff --git a/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewMapSample.xaml.cs b/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewMapSample.xaml.cs
index becc1db4a..5fe66671f 100644
--- a/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewMapSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewMapSample.xaml.cs
@@ -2,6 +2,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.SampleApp.Samples.SearchView
 {
+    [SampleInfo(ApiKeyRequired = true)]
     public sealed partial class SearchViewMapSample : Page
     {
         public SearchViewMapSample()
diff --git a/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewSceneSample.xaml.cs b/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewSceneSample.xaml.cs
index 06c9a1252..ac6014aec 100644
--- a/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewSceneSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.UWP/Samples/SearchView/SearchViewSceneSample.xaml.cs
@@ -2,6 +2,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.SampleApp.Samples.SearchView
 {
+    [SampleInfo(ApiKeyRequired = true)]
     public sealed partial class SearchViewSceneSample : Page
     {
         public SearchViewSceneSample()
diff --git a/src/Samples/Toolkit.SampleApp.WPF/MainWindow.xaml b/src/Samples/Toolkit.SampleApp.WPF/MainWindow.xaml
index 44956aff1..d795a6b3e 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/MainWindow.xaml
+++ b/src/Samples/Toolkit.SampleApp.WPF/MainWindow.xaml
@@ -35,5 +35,36 @@
 
         </Border>
 
+        <Border Grid.Row="1" x:Name="ApiKeyWindow" Background="#ccffffff" d:Visibility="Visible" Visibility="Collapsed">
+            <Grid HorizontalAlignment="Center" VerticalAlignment="Center" Background="White">
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="Auto" />
+                    <RowDefinition />
+                </Grid.RowDefinitions>
+                <Border Background="CornflowerBlue" Padding="10">
+                    <Grid>
+                        <TextBlock Text="API Key Required" FontSize="14" Foreground="White" FontWeight="DemiBold" />
+                        <Button Content="❌" Foreground="White" HorizontalAlignment="Right"
+                                Padding="10" Margin="-10" Background="Transparent" BorderThickness="0"
+                                Click="CancelApiKey_Click" />
+                    </Grid>
+                </Border>
+                <Border BorderThickness="1" BorderBrush="CornflowerBlue" Padding="20" Grid.Row="1">
+                    <StackPanel>
+                        <TextBlock Text="This functional test requires an API Key to access ArcGIS Location Services." Grid.Row="1" />
+                        <TextBlock Text="Enter API Key:" Margin="0,10,0,5" />
+                        <TextBox x:Name="ApiKeyInput" Width="400" />
+                        <Button HorizontalAlignment="Right" Content="Save" Padding="20,5" 
+                                Background="CornflowerBlue" Foreground="White" BorderBrush="White"
+                                Click="SaveApiKey_Click"
+                                />
+                        <TextBlock TextWrapping="Wrap" Margin="0,10,0,0">
+                            <Span>You can get or create an API key from <Hyperlink NavigateUri="https://developers.arcgis.com/api-keys/" RequestNavigate="Hyperlink_RequestNavigate">your developer dashboard</Hyperlink>.</Span><LineBreak></LineBreak>
+                            <Hyperlink NavigateUri="https://developers.arcgis.com/net/security-and-authentication/#api-keys" RequestNavigate="Hyperlink_RequestNavigate">More info on API Keys</Hyperlink>
+                        </TextBlock>
+                    </StackPanel>
+                </Border>
+            </Grid>
+        </Border>
     </Grid>
 </Window>
diff --git a/src/Samples/Toolkit.SampleApp.WPF/MainWindow.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/MainWindow.xaml.cs
index 2f79d7380..74a37a4de 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/MainWindow.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/MainWindow.xaml.cs
@@ -57,8 +57,15 @@ private void LoadSamples()
         }
 
         private MenuItem currentSampleMenuItem;
-        private void sampleitem_Click(Sample sample, MenuItem menu)
+        private async void sampleitem_Click(Sample sample, MenuItem menu)
         {
+            ApiKeyWindow.Visibility = Visibility.Collapsed;
+            ApiKeyTask?.TrySetResult(false);
+            if (sample.ApiKeyRequired && string.IsNullOrEmpty(ArcGISRuntimeEnvironment.ApiKey))
+            {
+                bool ok = await ShowApiKeyWindow();
+                if (!ok) return;
+            }
             var c = sample.Page.GetConstructor(new Type[] { });
             var ctrl = c.Invoke(new object[] { }) as UIElement;
             SampleContainer.Child = ctrl;
@@ -67,5 +74,47 @@ private void sampleitem_Click(Sample sample, MenuItem menu)
             menu.IsChecked = true;
             currentSampleMenuItem = menu;
         }
+
+        TaskCompletionSource<bool> ApiKeyTask;
+        private Task<bool> ShowApiKeyWindow()
+        {
+            ApiKeyTask?.TrySetResult(false);
+            ApiKeyWindow.Visibility = Visibility.Visible;
+            ApiKeyTask = new TaskCompletionSource<bool>();
+            return ApiKeyTask.Task;
+        }
+
+        private void CancelApiKey_Click(object sender, RoutedEventArgs e)
+        {
+            ApiKeyWindow.Visibility = Visibility.Collapsed;
+            ApiKeyTask.TrySetResult(false);
+        }
+
+        private async void SaveApiKey_Click(object sender, RoutedEventArgs e)
+        {
+            string key = ApiKeyInput.Text;
+            if(!string.IsNullOrWhiteSpace(key))
+            {
+                // Test API Key
+                try
+                {
+                    var basemap = new Basemap(BasemapStyle.ArcGISStreets) { ApiKey = key };
+                    await basemap.LoadAsync();
+                    ArcGISRuntimeEnvironment.ApiKey = key;
+                    ApiKeyWindow.Visibility = Visibility.Collapsed;
+                    ApiKeyTask.TrySetResult(true);
+                }
+                catch (System.Exception ex)
+                {
+                    MessageBox.Show(this, "Invalid API Key: " + ex.Message);
+                }
+            };
+        }
+
+        private void Hyperlink_RequestNavigate(object sender, RequestNavigateEventArgs e)
+        {
+            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(e.Uri.AbsoluteUri) {  UseShellExecute = true });
+            e.Handled = true;
+        }
     }
 }
diff --git a/src/Samples/Toolkit.SampleApp.WPF/SampleDatasource.cs b/src/Samples/Toolkit.SampleApp.WPF/SampleDatasource.cs
index 780bf1a1e..95f961aa3 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/SampleDatasource.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/SampleDatasource.cs
@@ -10,14 +10,15 @@
 namespace Esri.ArcGISRuntime.Toolkit.Samples
 {
     [AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
-    public class SampleInfoAttributeAttribute : Attribute
+    public class SampleInfoAttribute : Attribute
     {
-        public SampleInfoAttributeAttribute()
+        public SampleInfoAttribute()
         {
         }
         public string Category { get; set; }
         public string Description { get; set; }
         public string DisplayName { get; set; }
+        public bool ApiKeyRequired { get; set; }
     }
 
     public class SampleDatasource
@@ -31,12 +32,13 @@ where t.GetTypeInfo().IsSubclassOf(typeof(UserControl)) && t.FullName.Contains("
             Samples = (from p in pages select new Sample() { Page = p }).ToArray();
             foreach (var sample in Samples)
             {
-                var attr = sample.Page.GetTypeInfo().GetCustomAttribute(typeof(SampleInfoAttributeAttribute)) as SampleInfoAttributeAttribute;
+                var attr = sample.Page.GetTypeInfo().GetCustomAttribute(typeof(SampleInfoAttribute)) as SampleInfoAttribute;
                 if (attr != null)
                 {
                     sample.Category = attr.Category;
                     sample.Description = attr.Description;
                     sample.Name = attr.DisplayName;
+                    sample.ApiKeyRequired = attr.ApiKeyRequired;
                 }
                 if (string.IsNullOrEmpty(sample.Name))
                 {
@@ -68,14 +70,17 @@ public static SampleDatasource Current
             }
         }
     }
+
     public class Sample
     {
         public Type Page { get; set; }
-        
+
         public string Name { get; set; }
-        
+
         public string Description { get; set; }
 
-		public string Category { get; set; }
+        public string Category { get; set; }
+
+        public bool ApiKeyRequired { get; set; }
     }
 }
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/BasemapGallery/BasemapGalleryAppearanceSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/BasemapGallery/BasemapGalleryAppearanceSample.xaml.cs
index 7685be4a4..ef2ebc984 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/BasemapGallery/BasemapGalleryAppearanceSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/BasemapGallery/BasemapGalleryAppearanceSample.xaml.cs
@@ -7,7 +7,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.BasemapGallery
 {
-    [SampleInfoAttribute(Category = "BasemapGallery", DisplayName = "BasemapGallery - Appearance", Description = "Sample showing customization options related to appearance")]
+    [SampleInfo(Category = "BasemapGallery", DisplayName = "BasemapGallery - Appearance", Description = "Sample showing customization options related to appearance", ApiKeyRequired = true)]
     public partial class BasemapGalleryAppearanceSample : UserControl
     {
         public BasemapGalleryAppearanceSample()
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/BasemapGallery/BasemapGalleryBehaviorSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/BasemapGallery/BasemapGalleryBehaviorSample.xaml.cs
index d6006abe8..fc51bff7b 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/BasemapGallery/BasemapGalleryBehaviorSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/BasemapGallery/BasemapGalleryBehaviorSample.xaml.cs
@@ -9,7 +9,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.BasemapGallery
 {
-    [SampleInfoAttribute(Category = "BasemapGallery", DisplayName = "BasemapGallery - Behavior", Description = "Sample showing behaviors")]
+    [SampleInfo(Category = "BasemapGallery", DisplayName = "BasemapGallery - Behavior", Description = "Sample showing behaviors", ApiKeyRequired = true)]
     public partial class BasemapGalleryBehaviorSample : UserControl, INotifyPropertyChanged
     {
         private GeoView _selectedGeoView;
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/BookmarksView/BookmarksViewSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/BookmarksView/BookmarksViewSample.xaml.cs
index bc289edf4..a3c95d6ff 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/BookmarksView/BookmarksViewSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/BookmarksView/BookmarksViewSample.xaml.cs
@@ -21,7 +21,7 @@ namespace Esri.ArcGISRuntime.Toolkit.Samples.BookmarksView
     /// <summary>
     /// Interaction logic for BookmarksViewSample.xaml
     /// </summary>
-    [SampleInfoAttribute(Category = "BookmarksView", DisplayName = "BookmarksView - Comprehensive", Description = "Full BookmarksView scenario")]
+    [SampleInfo(Category = "BookmarksView", DisplayName = "BookmarksView - Comprehensive", Description = "Full BookmarksView scenario")]
     public partial class BookmarksViewSample : UserControl
     {
         private const string webMapOneUrl = "https://arcgisruntime.maps.arcgis.com/home/item.html?id=e50fafe008ac4ce4ad2236de7fd149c3";
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/Compass/MapViewCompassSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/Compass/MapViewCompassSample.xaml.cs
index e78875487..4b9947686 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/Compass/MapViewCompassSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/Compass/MapViewCompassSample.xaml.cs
@@ -15,7 +15,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.Compass
 {
-    [SampleInfoAttribute(Category = "Compass", DisplayName = "Compass - MapView", Description = "Compass used with a MapView")]
+    [SampleInfo(Category = "Compass", DisplayName = "Compass - MapView", Description = "Compass used with a MapView")]
     public partial class MapViewCompassSample : UserControl
     {
         public MapViewCompassSample()
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/Compass/SceneViewCompassSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/Compass/SceneViewCompassSample.xaml.cs
index 5df058773..ed38b63fc 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/Compass/SceneViewCompassSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/Compass/SceneViewCompassSample.xaml.cs
@@ -16,7 +16,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.Compass
 {
-    [SampleInfoAttribute(Category = "Compass", DisplayName = "Compass - SceneView", Description = "Compass used with a SceneView")]
+    [SampleInfo(Category = "Compass", DisplayName = "Compass - SceneView", Description = "Compass used with a SceneView")]
     public partial class SceneViewCompassSample : UserControl
     {
         public SceneViewCompassSample()
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/Legend/LayerLegendSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/Legend/LayerLegendSample.xaml.cs
index 306ff0f9f..d4fb58113 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/Legend/LayerLegendSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/Legend/LayerLegendSample.xaml.cs
@@ -2,7 +2,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.Legend
 {
-    [SampleInfoAttribute(Category = "Legend", DisplayName = "LayerLegend [Obsolete]", Description = "LayerLegend is obsolete. See Legend.")]
+    [SampleInfo(Category = "Legend", DisplayName = "LayerLegend [Obsolete]", Description = "LayerLegend is obsolete. See Legend.")]
     public partial class LayerLegendSample : UserControl
     {
         public LayerLegendSample()
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/OverviewMap/OverviewMapSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/OverviewMap/OverviewMapSample.xaml.cs
index e9d8cff21..bc4dbf5ed 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/OverviewMap/OverviewMapSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/OverviewMap/OverviewMapSample.xaml.cs
@@ -5,7 +5,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.OverviewMap
 {
-    [SampleInfoAttribute(Category = "OverviewMap", DisplayName = "OverviewMap", Description = "OverviewMap sample")]
+    [SampleInfo(Category = "OverviewMap", DisplayName = "OverviewMap", Description = "OverviewMap sample", ApiKeyRequired = true)]
     public partial class OverviewMapSample : UserControl
     {
         private bool _mapToggle;
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewCustomizationSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewCustomizationSample.xaml.cs
index d935fc959..f98df7494 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewCustomizationSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewCustomizationSample.xaml.cs
@@ -15,6 +15,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.SearchView
 {
+    [SampleInfo(ApiKeyRequired = true)]
     public partial class SearchViewCustomizationSample : UserControl
     {
         public SearchViewCustomizationSample()
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewMapSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewMapSample.xaml.cs
index ae58c7ef0..a210c895b 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewMapSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewMapSample.xaml.cs
@@ -3,6 +3,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.SearchView
 {
+    [SampleInfo(ApiKeyRequired = true)]
     public partial class SearchViewMapSample : UserControl
     {
         public SearchViewMapSample()
diff --git a/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewSceneSample.xaml.cs b/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewSceneSample.xaml.cs
index 3df61d704..39ba0a9b1 100644
--- a/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewSceneSample.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WPF/Samples/SearchView/SearchViewSceneSample.xaml.cs
@@ -3,6 +3,7 @@
 
 namespace Esri.ArcGISRuntime.Toolkit.Samples.SearchView
 {
+    [SampleInfo(ApiKeyRequired = true)]
     public partial class SearchViewSceneSample : UserControl
     {
         public SearchViewSceneSample()
diff --git a/src/Samples/Toolkit.SampleApp.WinUI/MainWindow.xaml b/src/Samples/Toolkit.SampleApp.WinUI/MainWindow.xaml
index d2ffe9f6c..40df81cca 100644
--- a/src/Samples/Toolkit.SampleApp.WinUI/MainWindow.xaml
+++ b/src/Samples/Toolkit.SampleApp.WinUI/MainWindow.xaml
@@ -40,6 +40,37 @@
                 <Frame x:Name="rootFrame" Background="{ThemeResource ApplicationForegroundThemeBrush}" >
                     <local:WelcomePage />
                 </Frame>
+
+                <Border  x:Name="ApiKeyWindow" Background="#ccffffff" d:Visibility="Visible" Visibility="Collapsed">
+                    <Grid HorizontalAlignment="Center" VerticalAlignment="Center" Background="White">
+                        <Grid.RowDefinitions>
+                            <RowDefinition Height="Auto" />
+                            <RowDefinition />
+                        </Grid.RowDefinitions>
+                        <Border Background="CornflowerBlue" Padding="10">
+                            <Grid>
+                                <TextBlock Text="API Key Required" FontSize="14" Foreground="White" />
+                                <Button Content="❌" Foreground="White" HorizontalAlignment="Right" FontFamily="Segoe UI Symbol"
+                                Padding="10" Margin="-10" Background="Transparent" BorderThickness="0"
+                                Click="CancelApiKey_Click" />
+                            </Grid>
+                        </Border>
+                        <Border BorderThickness="1" BorderBrush="CornflowerBlue" Padding="20" Grid.Row="1">
+                            <StackPanel>
+                                <TextBlock Text="This functional test requires an API Key to access ArcGIS Location Services." Grid.Row="1" />
+                                <TextBlock Text="Enter API Key:" Margin="0,10,0,5" />
+                                <TextBox x:Name="ApiKeyInput" Width="475" />
+                                <Button HorizontalAlignment="Right" Content="Save" Padding="20,5" 
+                                Background="CornflowerBlue" Foreground="White" BorderBrush="White"
+                                Click="SaveApiKey_Click" />
+                                <TextBlock TextWrapping="Wrap" Margin="0,10,0,0">
+                            <Span>You can get or create an API key from <Hyperlink NavigateUri="https://developers.arcgis.com/api-keys/">your developer dashboard</Hyperlink>.</Span><LineBreak></LineBreak>
+                            <Hyperlink NavigateUri="https://developers.arcgis.com/net/security-and-authentication/#api-keys">More info on API Keys</Hyperlink>
+                                </TextBlock>
+                            </StackPanel>
+                        </Border>
+                    </Grid>
+                </Border>
             </Grid>
         </SplitView>
     </Grid>
diff --git a/src/Samples/Toolkit.SampleApp.WinUI/MainWindow.xaml.cs b/src/Samples/Toolkit.SampleApp.WinUI/MainWindow.xaml.cs
index 9da3f7929..0930389df 100644
--- a/src/Samples/Toolkit.SampleApp.WinUI/MainWindow.xaml.cs
+++ b/src/Samples/Toolkit.SampleApp.WinUI/MainWindow.xaml.cs
@@ -1,4 +1,5 @@
-using Microsoft.UI.Xaml;
+using Esri.ArcGISRuntime.Mapping;
+using Microsoft.UI.Xaml;
 using Microsoft.UI.Xaml.Controls;
 using Microsoft.UI.Xaml.Controls.Primitives;
 using Microsoft.UI.Xaml.Data;
@@ -10,8 +11,10 @@
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices.WindowsRuntime;
+using System.Threading.Tasks;
 using Windows.Foundation;
 using Windows.Foundation.Collections;
+using Windows.Storage;
 using Windows.UI.Core;
 
 namespace Esri.ArcGISRuntime.Toolkit.SampleApp
@@ -28,6 +31,22 @@ public MainWindow()
             Microsoft.UI.WindowId windowId = Microsoft.UI.Win32Interop.GetWindowIdFromWindow(hWnd);
             appWindow = Microsoft.UI.Windowing.AppWindow.GetFromWindowId(windowId);
             appWindow.Title = WindowTitle;
+            CheckAPIKey();
+        }
+
+        private async void CheckAPIKey()
+        {
+            ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
+            if (localSettings.Values.ContainsKey("APIKey") && localSettings.Values["APIKey"] is string key)
+            {
+                try
+                {
+                    var basemap = new Mapping.Basemap(Mapping.BasemapStyle.ArcGISStreets) { ApiKey = key };
+                    await basemap.LoadAsync();
+                    ArcGISRuntimeEnvironment.ApiKey = key;
+                }
+                catch { }
+            }
         }
 
         private void sampleView_ItemClick(object sender, ItemClickEventArgs e)
@@ -36,9 +55,17 @@ private void sampleView_ItemClick(object sender, ItemClickEventArgs e)
             NavigateSample(sample);
         }
 
-        public void NavigateSample(Sample sample)
+        public async void NavigateSample(Sample sample)
         {
             if (sample == null) return;
+
+            ApiKeyWindow.Visibility = Visibility.Collapsed;
+            ApiKeyTask?.TrySetResult(false);
+            if (sample.ApiKeyRequired && string.IsNullOrEmpty(ArcGISRuntimeEnvironment.ApiKey))
+            {
+                bool ok = await ShowApiKeyWindow();
+                if (!ok) return;
+            }
             if (!rootFrame.Navigate(sample.Page))
             {
                 throw new Exception("Failed to create initial page");
@@ -54,5 +81,48 @@ public Frame SampleFrame
         }
 
         public ICollectionView Samples => SampleDatasource.Current.CollectionViewSource.View;
+
+        private TaskCompletionSource<bool> ApiKeyTask;
+        private Task<bool> ShowApiKeyWindow()
+        {
+            ApiKeyTask?.TrySetResult(false);
+            ApiKeyWindow.Visibility = Visibility.Visible;
+            ApiKeyTask = new TaskCompletionSource<bool>();
+            return ApiKeyTask.Task;
+        }
+
+        private void CancelApiKey_Click(object sender, RoutedEventArgs e)
+        {
+            ApiKeyWindow.Visibility = Visibility.Collapsed;
+            ApiKeyTask.TrySetResult(false);
+        }
+
+        private async void SaveApiKey_Click(object sender, RoutedEventArgs e)
+        {
+            string key = ApiKeyInput.Text;
+            if (!string.IsNullOrWhiteSpace(key))
+            {
+                // Test API Key
+                try
+                {
+                    var basemap = new Basemap(BasemapStyle.ArcGISStreets) { ApiKey = key };
+                    await basemap.LoadAsync();
+                    ArcGISRuntimeEnvironment.ApiKey = key;
+                    ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;
+                    localSettings.Values["APIKey"] = key;
+                    ApiKeyWindow.Visibility = Visibility.Collapsed;
+                    ApiKeyTask.TrySetResult(true);
+                }
+                catch (System.Exception ex)
+                {
+                    var dialog = new ContentDialog();
+                    dialog.Title = "Invalid API Key";
+                    dialog.Content = ex.Message;
+                    dialog.XamlRoot = Content.XamlRoot;
+                    dialog.PrimaryButtonText = "OK";
+                    await dialog.ShowAsync();
+                }
+            }
+        }
     }
 }