diff --git a/Octokit.Reactive/Clients/IAssigneesClient.cs b/Octokit.Reactive/Clients/IObservableAssigneesClient.cs
similarity index 69%
rename from Octokit.Reactive/Clients/IAssigneesClient.cs
rename to Octokit.Reactive/Clients/IObservableAssigneesClient.cs
index 14108139..5a70e1bf 100644
--- a/Octokit.Reactive/Clients/IAssigneesClient.cs
+++ b/Octokit.Reactive/Clients/IObservableAssigneesClient.cs
@@ -1,8 +1,9 @@
-using System.Threading.Tasks;
+using System;
+using System.Collections.Generic;
 
-namespace Octokit
+namespace Octokit.Reactive
 {
-    public interface IAssigneesClient
+    public interface IObservableAssigneesClient
     {
         /// <summary>
         /// Gets all the available assignees (owner + collaborators) to which issues may be assigned.
@@ -10,7 +11,7 @@ namespace Octokit
         /// <param name="owner">The owner of the repository</param>
         /// <param name="name">The name of the repository</param>
         /// <returns></returns>
-        Task<IReadOnlyList<User>> GetForRepository(string owner, string name);
+        IObservable<IReadOnlyList<User>> GetForRepository(string owner, string name);
 
         /// <summary>
         /// Checks to see if a user is an assignee for a repository.
@@ -19,6 +20,6 @@ namespace Octokit
         /// <param name="name">The name of the repository</param>
         /// <param name="assignee">Username of the prospective assignee</param>
         /// <returns></returns>
-        Task<bool> CheckAssignee(string owner, string name, string assignee);
+        IObservable<bool> CheckAssignee(string owner, string name, string assignee);
     }
 }
diff --git a/Octokit.Reactive/Clients/ObservableAssigneesClient.cs b/Octokit.Reactive/Clients/ObservableAssigneesClient.cs
new file mode 100644
index 00000000..ae8d13a3
--- /dev/null
+++ b/Octokit.Reactive/Clients/ObservableAssigneesClient.cs
@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using System.Reactive.Threading.Tasks;
+
+namespace Octokit.Reactive
+{
+    public class ObservableAssigneesClient : IObservableAssigneesClient
+    {
+        readonly IAssigneesClient _client;
+
+        public ObservableAssigneesClient(IGitHubClient client)
+        {
+            Ensure.ArgumentNotNull(client, "client");
+
+            _client = client.Issue.Assignee;
+        }
+
+        /// <summary>
+        /// Gets all the available assignees (owner + collaborators) to which issues may be assigned.
+        /// </summary>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <returns></returns>
+        public IObservable<IReadOnlyList<User>> GetForRepository(string owner, string name)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(owner, "owner");
+            Ensure.ArgumentNotNullOrEmptyString(name, "name");
+
+            return _client.GetForRepository(owner, name).ToObservable();
+        }
+
+        /// <summary>
+        /// Checks to see if a user is an assignee for a repository.
+        /// </summary>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <param name="assignee">Username of the prospective assignee</param>
+        /// <returns></returns>
+        public IObservable<bool> CheckAssignee(string owner, string name, string assignee)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(owner, "owner");
+            Ensure.ArgumentNotNullOrEmptyString(name, "name");
+            Ensure.ArgumentNotNullOrEmptyString(assignee, "assignee");
+
+            return _client.CheckAssignee(owner, name, assignee).ToObservable();
+        }
+    }
+}
diff --git a/Octokit.Reactive/Octokit.Reactive.csproj b/Octokit.Reactive/Octokit.Reactive.csproj
index a318c61b..bfe5da0a 100644
--- a/Octokit.Reactive/Octokit.Reactive.csproj
+++ b/Octokit.Reactive/Octokit.Reactive.csproj
@@ -71,6 +71,7 @@
     <Compile Include="..\SolutionInfo.cs">
       <Link>Properties\SolutionInfo.cs</Link>
     </Compile>
+    <Compile Include="Clients\ObservableAssigneesClient.cs" />
     <Compile Include="Clients\IObservableCommitStatusClient.cs" />
     <Compile Include="Clients\ObservableCommitStatusClient.cs" />
     <Compile Include="Clients\ObservableNotificationsClient.cs" />
@@ -81,7 +82,7 @@
     <Compile Include="Clients\ObservableRepositoriesClient.cs" />
     <Compile Include="Clients\ObservableSshKeysClient.cs" />
     <Compile Include="Clients\ObservableUsersClient.cs" />
-    <Compile Include="Clients\IAssigneesClient.cs" />
+    <Compile Include="Clients\IObservableAssigneesClient.cs" />
     <Compile Include="Clients\IObservableNotificationsClient.cs" />
     <Compile Include="Helpers\AuthorizationExtensions.cs" />
     <Compile Include="Helpers\ConnectionExtensions.cs" />