diff --git a/src/Untappd.Net/Client/IUnAuthenticadedUntappdCredentials.cs b/src/Untappd.Net/Client/IUnAuthenticadedUntappdCredentials.cs
new file mode 100644
index 0000000..1321655
--- /dev/null
+++ b/src/Untappd.Net/Client/IUnAuthenticadedUntappdCredentials.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Untappd.Net.Client
+{
+    public interface IUnAuthenticadedUntappdCredentials : IUntappdCredentials
+    {
+    }
+}
diff --git a/src/Untappd.Net/Client/UntappdCredentials.cs b/src/Untappd.Net/Client/UntappdCredentials.cs
new file mode 100644
index 0000000..2afe727
--- /dev/null
+++ b/src/Untappd.Net/Client/UntappdCredentials.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Untappd.Net.Client
+{
+    public abstract class UntappdCredentials : IUntappdCredentials
+    {
+        public string ClientId { get; private set; }
+        public string ClientSecret { get; private set; }
+
+        /// <summary>
+        /// UnAuthenticated request. Pass your API id and secret
+        /// </summary>
+        /// <param name="clientId"></param>
+        /// <param name="clientSecret"></param>
+        public UntappdCredentials(string clientId, string clientSecret)
+        {
+            if (string.IsNullOrWhiteSpace(clientId))
+            {
+                throw new ArgumentNullException("clientId");
+            }
+            if (string.IsNullOrWhiteSpace(clientSecret))
+            {
+                throw new ArgumentNullException("clientSecret");
+            }
+            ClientId = string.Copy(clientId);
+            ClientSecret = string.Copy(clientSecret);
+        }
+    }
+}
diff --git a/src/Untappd.Net/Request/IAuthenticatedRequest.cs b/src/Untappd.Net/Request/IAuthenticatedRequest.cs
new file mode 100644
index 0000000..a102cdc
--- /dev/null
+++ b/src/Untappd.Net/Request/IAuthenticatedRequest.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Untappd.Net.Request
+{
+    public interface IAuthenticatedRequest : IRequest
+    {
+    }
+}