diff --git a/Configurations/XAiApiConfiguration.cs b/Configurations/XAiApiConfiguration.cs
new file mode 100644
index 0000000..28ef6ef
--- /dev/null
+++ b/Configurations/XAiApiConfiguration.cs
@@ -0,0 +1,12 @@
+using xAiModels.Models;
+
+namespace xAiModels.Configurations
+{
+    public class XAiApiConfiguration
+    {
+        /// <summary>
+        /// Model Providers ...
+        /// </summary>
+        public XAiModelDescriptor[] Models { get; set; } = [];
+    }
+}
\ No newline at end of file
diff --git a/Constants/ConfigurationNodeNames.cs b/Constants/ConfigurationNodeNames.cs
new file mode 100644
index 0000000..a38524b
--- /dev/null
+++ b/Constants/ConfigurationNodeNames.cs
@@ -0,0 +1,7 @@
+namespace xAiModels.Constants
+{
+    public partial struct ConfigurationNodeNames
+    {
+        public const string AI_API_NODE = "AiApiConfiguration";
+    }
+}
\ No newline at end of file
diff --git a/Constants/XAiModelProviderType.cs b/Constants/XAiModelProviderType.cs
new file mode 100644
index 0000000..b7cb76e
--- /dev/null
+++ b/Constants/XAiModelProviderType.cs
@@ -0,0 +1,13 @@
+namespace xAiModels.Constants
+{
+    /// <summary>
+    /// Specifiy Provider Type ...
+    /// </summary>
+    public enum XAiModelProviderType
+    {
+        None,
+        Ollama,
+        DeepSeek,
+        HuggingFace        
+    }
+}
\ No newline at end of file
diff --git a/Extensions/ChatResponseExtensions.cs b/Extensions/ChatResponseExtensions.cs
new file mode 100644
index 0000000..f50a2e2
--- /dev/null
+++ b/Extensions/ChatResponseExtensions.cs
@@ -0,0 +1,26 @@
+using Microsoft.Extensions.AI;
+using xCommons.Extensions;
+
+namespace xAiModels.Extensions
+{
+    public static class ChatResponseExtensions
+    {
+        /// <summary>
+        /// Validate a Chat Response ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool IsValid(this ChatResponse source)
+        {
+            //
+            var result =
+                source is not null &&
+                !source.IsNullOrDefault() &&
+                !string.IsNullOrWhiteSpace(source.Text) &&
+                source.FinishReason == ChatFinishReason.Stop;
+
+            //
+            return result;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Extensions/XAiApiConfigurationExtensions.cs b/Extensions/XAiApiConfigurationExtensions.cs
new file mode 100644
index 0000000..f566f78
--- /dev/null
+++ b/Extensions/XAiApiConfigurationExtensions.cs
@@ -0,0 +1,42 @@
+using System.Linq;
+using xAiModels.Configurations;
+using xAiModels.Models;
+using xCommons.Extensions;
+
+namespace xAiModels.Extensions
+{
+    public static class XAiApiConfigurationExtensions
+    {
+        /// <summary>
+        /// Validate Api Configuration ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static bool IsValid(this XAiApiConfiguration source)
+        {
+            return
+                !source.IsNullOrDefault() &&
+                source.Models.HasChild();
+        }
+
+        /// <summary>
+        /// Retrieve Default Model Descriptor ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <returns></returns>
+        public static XAiModelDescriptor GetDefaultModel(this XAiApiConfiguration source)
+        {
+            //
+            XAiModelDescriptor result = null;
+
+            //
+            if (source.IsValid())
+            {
+                result = source.Models.First();
+            }
+
+            //
+            return result;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Models/XAiModelDescriptor.cs b/Models/XAiModelDescriptor.cs
new file mode 100644
index 0000000..f23b72a
--- /dev/null
+++ b/Models/XAiModelDescriptor.cs
@@ -0,0 +1,35 @@
+using xAiModels.Constants;
+
+namespace xAiModels.Models
+{
+    /// <summary>
+    /// Describe a Provided Model ...
+    /// </summary>
+    public class XAiModelDescriptor
+    {
+        /// <summary>
+        /// Provider Name ...
+        /// </summary>
+        public string Name { get; set; }
+
+        /// <summary>
+        /// LLM Provider Url ...
+        /// </summary>
+        public string Url { get; set; }
+
+        /// <summary>
+        /// Model Name ...
+        /// </summary>
+        public string LLM { get; set; }
+
+        /// <summary>
+        /// Api Key for Connection ...
+        /// </summary>
+        public string ApiKey { get; set; }
+
+        /// <summary>
+        /// Specified Model Provider Type ...
+        /// </summary>
+        public XAiModelProviderType Provider { get; set; } = XAiModelProviderType.Ollama;        
+    }
+}
\ No newline at end of file