diff --git a/src/Core/Abstractions/IStateService.cs b/src/Core/Abstractions/IStateService.cs
new file mode 100644
index 000000000..03fe074b0
--- /dev/null
+++ b/src/Core/Abstractions/IStateService.cs
@@ -0,0 +1,11 @@
+using System.Threading.Tasks;
+
+namespace Bit.Core.Abstractions
+{
+    public interface IStateService
+    {
+        Task<T> GetAsync<T>(string key);
+        Task RemoveAsync(string key);
+        Task SaveAsync<T>(string key, T obj);
+    }
+}
\ No newline at end of file
diff --git a/src/Core/Services/StateService.cs b/src/Core/Services/StateService.cs
new file mode 100644
index 000000000..d345b88dd
--- /dev/null
+++ b/src/Core/Services/StateService.cs
@@ -0,0 +1,38 @@
+using Bit.Core.Abstractions;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Bit.Core.Services
+{
+    public class StateService : IStateService
+    {
+        private readonly Dictionary<string, object> _state = new Dictionary<string, object>();
+
+        public Task<T> GetAsync<T>(string key)
+        {
+            return Task.FromResult(_state.ContainsKey(key) ? (T)_state[key] : (T)(object)null);
+        }
+
+        public Task SaveAsync<T>(string key, T obj)
+        {
+            if(_state.ContainsKey(key))
+            {
+                _state[key] = obj;
+            }
+            else
+            {
+                _state.Add(key, obj);
+            }
+            return Task.FromResult(0);
+        }
+
+        public Task RemoveAsync(string key)
+        {
+            if(_state.ContainsKey(key))
+            {
+                _state.Remove(key);
+            }
+            return Task.FromResult(0);
+        }
+    }
+}