diff --git a/Octokit.Reactive/Clients/IObservableReferencesClient.cs b/Octokit.Reactive/Clients/IObservableReferencesClient.cs
index dac7fee9..23ac3a6c 100644
--- a/Octokit.Reactive/Clients/IObservableReferencesClient.cs
+++ b/Octokit.Reactive/Clients/IObservableReferencesClient.cs
@@ -25,6 +25,19 @@ namespace Octokit.Reactive
         [SuppressMessage("Microsoft.Naming", "CA1716:IdentifiersShouldNotMatchKeywords", MessageId = "Get",
             Justification = "Method makes a network request")]
         IObservable<Reference> Get(string owner, string name, string reference);
+        
+        /// <summary>
+        /// Gets a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <returns></returns>
+        [SuppressMessage("Microsoft.Naming", "CA1716:IdentifiersShouldNotMatchKeywords", MessageId = "Get",
+            Justification = "Method makes a network request")]
+        IObservable<Reference> Get(int repositoryId, string reference);
 
         /// <summary>
         /// Gets all references for a given repository
@@ -37,6 +50,16 @@ namespace Octokit.Reactive
         /// <returns></returns>
         IObservable<Reference> GetAll(string owner, string name);
 
+        /// <summary>
+        /// Gets all references for a given repository
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-all-references
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <returns></returns>
+        IObservable<Reference> GetAll(int repositoryId);
+
         /// <summary>
         /// Gets references for a given repository by sub-namespace, i.e. "tags" or "heads"
         /// </summary>
@@ -49,6 +72,17 @@ namespace Octokit.Reactive
         /// <returns></returns>
         IObservable<Reference> GetAllForSubNamespace(string owner, string name, string subNamespace);
 
+        /// <summary>
+        /// Gets references for a given repository by sub-namespace, i.e. "tags" or "heads"
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-all-references
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="subNamespace">The sub-namespace to get references for</param>
+        /// <returns></returns>
+        IObservable<Reference> GetAllForSubNamespace(int repositoryId, string subNamespace);
+
         /// <summary>
         /// Creates a reference for a given repository
         /// </summary>
@@ -61,6 +95,17 @@ namespace Octokit.Reactive
         /// <returns></returns>
         IObservable<Reference> Create(string owner, string name, NewReference reference);
 
+        /// <summary>
+        /// Creates a reference for a given repository
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#create-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The reference to create</param>
+        /// <returns></returns>
+        IObservable<Reference> Create(int repositoryId, NewReference reference);
+
         /// <summary>
         /// Updates a reference for a given repository by reference name
         /// </summary>
@@ -74,6 +119,18 @@ namespace Octokit.Reactive
         /// <returns></returns>
         IObservable<Reference> Update(string owner, string name, string reference, ReferenceUpdate referenceUpdate);
 
+        /// <summary>
+        /// Updates a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#update-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <param name="referenceUpdate">The updated reference data</param>
+        /// <returns></returns>
+        IObservable<Reference> Update(int repositoryId, string reference, ReferenceUpdate referenceUpdate);
+
         /// <summary>
         /// Deletes a reference for a given repository by reference name
         /// </summary>
@@ -85,5 +142,16 @@ namespace Octokit.Reactive
         /// <param name="reference">The name of the reference</param>
         /// <returns></returns>
         IObservable<Unit> Delete(string owner, string name, string reference);
+
+        /// <summary>
+        /// Deletes a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#delete-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <returns></returns>
+        IObservable<Unit> Delete(int repositoryId, string reference);
     }
 }
\ No newline at end of file
diff --git a/Octokit.Reactive/Clients/ObservableReferencesClient.cs b/Octokit.Reactive/Clients/ObservableReferencesClient.cs
index 50096c7d..8daa76a3 100644
--- a/Octokit.Reactive/Clients/ObservableReferencesClient.cs
+++ b/Octokit.Reactive/Clients/ObservableReferencesClient.cs
@@ -43,6 +43,22 @@ namespace Octokit.Reactive
             return _reference.Get(owner, name, reference).ToObservable();
         }
 
+        /// <summary>
+        /// Gets a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <returns></returns>
+        public IObservable<Reference> Get(int repositoryId, string reference)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(reference, "reference");
+
+            return _reference.Get(repositoryId, reference).ToObservable();
+        }
+
         /// <summary>
         /// Gets all references for a given repository
         /// </summary>
@@ -60,6 +76,19 @@ namespace Octokit.Reactive
             return _connection.GetAndFlattenAllPages<Reference>(ApiUrls.Reference(owner, name));
         }
 
+        /// <summary>
+        /// Gets all references for a given repository
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-all-references
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <returns></returns>
+        public IObservable<Reference> GetAll(int repositoryId)
+        {
+            return _connection.GetAndFlattenAllPages<Reference>(ApiUrls.Reference(repositoryId));
+        }
+
         /// <summary>
         /// Gets references for a given repository by sub-namespace, i.e. "tags" or "heads"
         /// </summary>
@@ -79,6 +108,22 @@ namespace Octokit.Reactive
             return _connection.GetAndFlattenAllPages<Reference>(ApiUrls.Reference(owner, name, subNamespace));
         }
 
+        /// <summary>
+        /// Gets references for a given repository by sub-namespace, i.e. "tags" or "heads"
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-all-references
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="subNamespace">The sub-namespace to get references for</param>
+        /// <returns></returns>
+        public IObservable<Reference> GetAllForSubNamespace(int repositoryId, string subNamespace)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(subNamespace, "subNamespace");
+
+            return _connection.GetAndFlattenAllPages<Reference>(ApiUrls.Reference(repositoryId, subNamespace));
+        }
+
         /// <summary>
         /// Creates a reference for a given repository
         /// </summary>
@@ -98,6 +143,22 @@ namespace Octokit.Reactive
             return _reference.Create(owner, name, reference).ToObservable();
         }
 
+        /// <summary>
+        /// Creates a reference for a given repository
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#create-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The reference to create</param>
+        /// <returns></returns>
+        public IObservable<Reference> Create(int repositoryId, NewReference reference)
+        {
+            Ensure.ArgumentNotNull(reference, "reference");
+
+            return _reference.Create(repositoryId, reference).ToObservable();
+        }
+
         /// <summary>
         /// Updates a reference for a given repository by reference name
         /// </summary>
@@ -119,6 +180,24 @@ namespace Octokit.Reactive
             return _reference.Update(owner, name, reference, referenceUpdate).ToObservable();
         }
 
+        /// <summary>
+        /// Updates a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#update-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <param name="referenceUpdate">The updated reference data</param>
+        /// <returns></returns>
+        public IObservable<Reference> Update(int repositoryId, string reference, ReferenceUpdate referenceUpdate)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(reference, "reference");
+            Ensure.ArgumentNotNull(referenceUpdate, "update");
+
+            return _reference.Update(repositoryId, reference, referenceUpdate).ToObservable();
+        }
+
         /// <summary>
         /// Deletes a reference for a given repository by reference name
         /// </summary>
@@ -137,5 +216,21 @@ namespace Octokit.Reactive
 
             return _reference.Delete(owner, name, reference).ToObservable();
         }
+
+        /// <summary>
+        /// Deletes a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#delete-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <returns></returns>
+        public IObservable<Unit> Delete(int repositoryId, string reference)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(reference, "reference");
+
+            return _reference.Delete(repositoryId, reference).ToObservable();
+        }
     }
 }
\ No newline at end of file
diff --git a/Octokit/Clients/IReferencesClient.cs b/Octokit/Clients/IReferencesClient.cs
index 10a9fe2c..c6c51fc2 100644
--- a/Octokit/Clients/IReferencesClient.cs
+++ b/Octokit/Clients/IReferencesClient.cs
@@ -23,9 +23,22 @@ namespace Octokit
         /// <param name="reference">The name of the reference</param>
         /// <returns></returns>
         [SuppressMessage("Microsoft.Naming", "CA1716:IdentifiersShouldNotMatchKeywords", MessageId = "Get",
-            Justification = "Method makes a network request")]
+             Justification = "Method makes a network request")]
         Task<Reference> Get(string owner, string name, string reference);
 
+        /// <summary>
+        /// Gets a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <returns></returns>
+        [SuppressMessage("Microsoft.Naming", "CA1716:IdentifiersShouldNotMatchKeywords", MessageId = "Get",
+             Justification = "Method makes a network request")]
+        Task<Reference> Get(int repositoryId, string reference);
+
         /// <summary>
         /// Gets all references for a given repository
         /// </summary>
@@ -37,6 +50,16 @@ namespace Octokit
         /// <returns></returns>
         Task<IReadOnlyList<Reference>> GetAll(string owner, string name);
 
+        /// <summary>
+        /// Gets all references for a given repository
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-all-references
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <returns></returns>
+        Task<IReadOnlyList<Reference>> GetAll(int repositoryId);
+
         /// <summary>
         /// Gets references for a given repository by sub-namespace, i.e. "tags" or "heads"
         /// </summary>
@@ -49,6 +72,17 @@ namespace Octokit
         /// <returns></returns>
         Task<IReadOnlyList<Reference>> GetAllForSubNamespace(string owner, string name, string subNamespace);
 
+        /// <summary>
+        /// Gets references for a given repository by sub-namespace, i.e. "tags" or "heads"
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-all-references
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="subNamespace">The sub-namespace to get references for</param>
+        /// <returns></returns>
+        Task<IReadOnlyList<Reference>> GetAllForSubNamespace(int repositoryId, string subNamespace);
+
         /// <summary>
         /// Creates a reference for a given repository
         /// </summary>
@@ -61,6 +95,17 @@ namespace Octokit
         /// <returns></returns>
         Task<Reference> Create(string owner, string name, NewReference reference);
 
+        /// <summary>
+        /// Creates a reference for a given repository
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#create-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The reference to create</param>
+        /// <returns></returns>
+        Task<Reference> Create(int repositoryId, NewReference reference);
+
         /// <summary>
         /// Updates a reference for a given repository by reference name
         /// </summary>
@@ -74,6 +119,18 @@ namespace Octokit
         /// <returns></returns>
         Task<Reference> Update(string owner, string name, string reference, ReferenceUpdate referenceUpdate);
 
+        /// <summary>
+        /// Updates a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#update-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <param name="referenceUpdate">The updated reference data</param>
+        /// <returns></returns>
+        Task<Reference> Update(int repositoryId, string reference, ReferenceUpdate referenceUpdate);
+
         /// <summary>
         /// Deletes a reference for a given repository by reference name
         /// </summary>
@@ -85,5 +142,16 @@ namespace Octokit
         /// <param name="reference">The name of the reference</param>
         /// <returns></returns>
         Task Delete(string owner, string name, string reference);
+
+        /// <summary>
+        /// Deletes a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#delete-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <returns></returns>
+        Task Delete(int repositoryId, string reference);
     }
-}
\ No newline at end of file
+}
diff --git a/Octokit/Clients/ReferencesClient.cs b/Octokit/Clients/ReferencesClient.cs
index 14c60524..630e8827 100644
--- a/Octokit/Clients/ReferencesClient.cs
+++ b/Octokit/Clients/ReferencesClient.cs
@@ -39,6 +39,22 @@ namespace Octokit
             return ApiConnection.Get<Reference>(ApiUrls.Reference(owner, name, reference));
         }
 
+        /// <summary>
+        /// Gets a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <returns></returns>
+        public Task<Reference> Get(int repositoryId, string reference)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(reference, "reference");
+
+            return ApiConnection.Get<Reference>(ApiUrls.Reference(repositoryId, reference));
+        }
+
         /// <summary>
         /// Gets all references for a given repository
         /// </summary>
@@ -56,6 +72,19 @@ namespace Octokit
             return ApiConnection.GetAll<Reference>(ApiUrls.Reference(owner, name));
         }
 
+        /// <summary>
+        /// Gets all references for a given repository
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-all-references
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <returns></returns>
+        public Task<IReadOnlyList<Reference>> GetAll(int repositoryId)
+        {
+            return ApiConnection.GetAll<Reference>(ApiUrls.Reference(repositoryId));
+        }
+
         /// <summary>
         /// Gets references for a given repository by sub-namespace, i.e. "tags" or "heads"
         /// </summary>
@@ -77,6 +106,24 @@ namespace Octokit
             return ApiConnection.GetAll<Reference>(ApiUrls.Reference(owner, name, subNamespace));
         }
 
+        /// <summary>
+        /// Gets references for a given repository by sub-namespace, i.e. "tags" or "heads"
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#get-all-references
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="subNamespace">The sub-namespace to get references for</param>
+        /// <returns></returns>
+        public Task<IReadOnlyList<Reference>> GetAllForSubNamespace(int repositoryId, string subNamespace)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(subNamespace, "subNamespace");
+
+            // TODO: Handle 404 when subNamespace cannot be found
+
+            return ApiConnection.GetAll<Reference>(ApiUrls.Reference(repositoryId, subNamespace));
+        }
+
         /// <summary>
         /// Creates a reference for a given repository
         /// </summary>
@@ -96,6 +143,22 @@ namespace Octokit
             return ApiConnection.Post<Reference>(ApiUrls.Reference(owner, name), reference);
         }
 
+        /// <summary>
+        /// Creates a reference for a given repository
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#create-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The reference to create</param>
+        /// <returns></returns>
+        public Task<Reference> Create(int repositoryId, NewReference reference)
+        {
+            Ensure.ArgumentNotNull(reference, "reference");
+
+            return ApiConnection.Post<Reference>(ApiUrls.Reference(repositoryId), reference);
+        }
+
         /// <summary>
         /// Updates a reference for a given repository by reference name
         /// </summary>
@@ -117,6 +180,24 @@ namespace Octokit
             return ApiConnection.Patch<Reference>(ApiUrls.Reference(owner, name, reference), referenceUpdate);
         }
 
+        /// <summary>
+        /// Updates a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#update-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <param name="referenceUpdate">The updated reference data</param>
+        /// <returns></returns>
+        public Task<Reference> Update(int repositoryId, string reference, ReferenceUpdate referenceUpdate)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(reference, "reference");
+            Ensure.ArgumentNotNull(referenceUpdate, "update");
+
+            return ApiConnection.Patch<Reference>(ApiUrls.Reference(repositoryId, reference), referenceUpdate);
+        }
+
         /// <summary>
         /// Deletes a reference for a given repository by reference name
         /// </summary>
@@ -135,5 +216,21 @@ namespace Octokit
 
             return ApiConnection.Delete(ApiUrls.Reference(owner, name, reference));
         }
+
+        /// <summary>
+        /// Deletes a reference for a given repository by reference name
+        /// </summary>
+        /// <remarks>
+        /// http://developer.github.com/v3/git/refs/#delete-a-reference
+        /// </remarks>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <param name="reference">The name of the reference</param>
+        /// <returns></returns>
+        public Task Delete(int repositoryId, string reference)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(reference, "reference");
+
+            return ApiConnection.Delete(ApiUrls.Reference(repositoryId, reference));
+        }
     }
 }