diff --git a/src/Speckle.Sdk/Api/Operations/Operations.Receive.cs b/src/Speckle.Sdk/Api/Operations/Operations.Receive.cs
index b75db9fc..7cf92a2e 100644
--- a/src/Speckle.Sdk/Api/Operations/Operations.Receive.cs
+++ b/src/Speckle.Sdk/Api/Operations/Operations.Receive.cs
@@ -44,6 +44,11 @@ public partial class Operations
       receiveActivity?.SetStatus(SdkActivityStatusCode.Ok);
       return result;
     }
+    catch (OperationCanceledException)
+    {
+      //this is handled by the caller
+      throw;
+    }
     catch (Exception ex)
     {
       receiveActivity?.SetStatus(SdkActivityStatusCode.Error);
diff --git a/src/Speckle.Sdk/Serialisation/V2/MemoryServerObjectManager.cs b/src/Speckle.Sdk/Serialisation/V2/MemoryServerObjectManager.cs
index f4dda14a..0bf6cc16 100644
--- a/src/Speckle.Sdk/Serialisation/V2/MemoryServerObjectManager.cs
+++ b/src/Speckle.Sdk/Serialisation/V2/MemoryServerObjectManager.cs
@@ -9,6 +9,7 @@ public class MemoryServerObjectManager(ConcurrentDictionary<string, string> obje
 {
   public virtual async IAsyncEnumerable<(string, string)> DownloadObjects(
     IReadOnlyCollection<string> objectIds,
+    string? attributeMask,
     IProgress<ProgressArgs>? progress,
     [EnumeratorCancellation] CancellationToken cancellationToken
   )
diff --git a/src/Speckle.Sdk/Serialisation/V2/Receive/DeserializeProcess.cs b/src/Speckle.Sdk/Serialisation/V2/Receive/DeserializeProcess.cs
index b0e65a7c..3d3cefad 100644
--- a/src/Speckle.Sdk/Serialisation/V2/Receive/DeserializeProcess.cs
+++ b/src/Speckle.Sdk/Serialisation/V2/Receive/DeserializeProcess.cs
@@ -14,7 +14,8 @@ public record DeserializeProcessOptions(
   bool ThrowOnMissingReferences = true,
   bool SkipInvalidConverts = false,
   int? MaxParallelism = null,
-  bool SkipServer = false
+  bool SkipServer = false,
+  string? AttributeMask = null
 );
 
 public partial interface IDeserializeProcess : IAsyncDisposable;
@@ -44,6 +45,7 @@ public sealed class DeserializeProcess(
       new ObjectLoader(
         sqLiteJsonCacheManager,
         serverObjectManager,
+        options?.AttributeMask,
         progress,
         loggerFactory.CreateLogger<ObjectLoader>(),
         cancellationToken
diff --git a/src/Speckle.Sdk/Serialisation/V2/Receive/ObjectLoader.cs b/src/Speckle.Sdk/Serialisation/V2/Receive/ObjectLoader.cs
index 8485ed77..c3e37fa2 100644
--- a/src/Speckle.Sdk/Serialisation/V2/Receive/ObjectLoader.cs
+++ b/src/Speckle.Sdk/Serialisation/V2/Receive/ObjectLoader.cs
@@ -16,6 +16,7 @@ public partial interface IObjectLoader : IDisposable;
 public sealed class ObjectLoader(
   ISqLiteJsonCacheManager sqLiteJsonCacheManager,
   IServerObjectManager serverObjectManager,
+  string? attributeMask,
   IProgress<ProgressArgs>? progress,
   ILogger<ObjectLoader> logger,
   CancellationToken cancellationToken
@@ -111,6 +112,7 @@ public sealed class ObjectLoader(
     await foreach (
       var (id, json) in serverObjectManager.DownloadObjects(
         ids.Select(x => x.NotNull()).ToList(),
+        attributeMask,
         progress,
         cancellationToken
       )
diff --git a/src/Speckle.Sdk/Serialisation/V2/ServerObjectManager.cs b/src/Speckle.Sdk/Serialisation/V2/ServerObjectManager.cs
index e196c890..d5f3b9e9 100644
--- a/src/Speckle.Sdk/Serialisation/V2/ServerObjectManager.cs
+++ b/src/Speckle.Sdk/Serialisation/V2/ServerObjectManager.cs
@@ -51,6 +51,7 @@ public class ServerObjectManager : IServerObjectManager
 
   public async IAsyncEnumerable<(string, string)> DownloadObjects(
     IReadOnlyCollection<string> objectIds,
+    string? attributeMask,
     IProgress<ProgressArgs>? progress,
     [EnumeratorCancellation] CancellationToken cancellationToken
   )
@@ -59,10 +60,14 @@ public class ServerObjectManager : IServerObjectManager
     cancellationToken.ThrowIfCancellationRequested();
 
     using var childrenHttpMessage = new HttpRequestMessage();
-    childrenHttpMessage.RequestUri = new Uri($"/api/getobjects/{_streamId}", UriKind.Relative);
+    childrenHttpMessage.RequestUri = new Uri($"/api/v2/projects/{_streamId}/object-stream/", UriKind.Relative);
     childrenHttpMessage.Method = HttpMethod.Post;
 
-    Dictionary<string, string> postParameters = new() { { "objects", JsonConvert.SerializeObject(objectIds) } };
+    Dictionary<string, string> postParameters = new() { { "objectIds", JsonConvert.SerializeObject(objectIds) } };
+    if (!string.IsNullOrWhiteSpace(attributeMask))
+    {
+      postParameters.Add("attributeMask", attributeMask.NotNull());
+    }
     string serializedPayload = JsonConvert.SerializeObject(postParameters);
     childrenHttpMessage.Content = new StringContent(serializedPayload, Encoding.UTF8, "application/json");
     childrenHttpMessage.Headers.Add("Accept", "text/plain");
diff --git a/tests/Speckle.Sdk.Serialization.Tests/DetachedTests.cs b/tests/Speckle.Sdk.Serialization.Tests/DetachedTests.cs
index f41a5c10..bfd8b566 100644
--- a/tests/Speckle.Sdk.Serialization.Tests/DetachedTests.cs
+++ b/tests/Speckle.Sdk.Serialization.Tests/DetachedTests.cs
@@ -338,6 +338,7 @@ public class DummyServerObjectManager : IServerObjectManager
 {
   public IAsyncEnumerable<(string, string)> DownloadObjects(
     IReadOnlyCollection<string> objectIds,
+    string? attributeMask,
     IProgress<ProgressArgs>? progress,
     CancellationToken cancellationToken
   ) => throw new NotImplementedException();
diff --git a/tests/Speckle.Sdk.Serialization.Tests/ExceptionTests.cs b/tests/Speckle.Sdk.Serialization.Tests/ExceptionTests.cs
index 0d0d7332..7f73bf60 100644
--- a/tests/Speckle.Sdk.Serialization.Tests/ExceptionTests.cs
+++ b/tests/Speckle.Sdk.Serialization.Tests/ExceptionTests.cs
@@ -112,6 +112,7 @@ public class ExceptionTests
       new DummySqLiteReceiveManager(new Dictionary<string, string>()),
       new ExceptionServerObjectManager(),
       null,
+      null,
       new NullLogger<ObjectLoader>(),
       default
     );
diff --git a/tests/Speckle.Sdk.Serialization.Tests/Framework/ExceptionServerObjectManager.cs b/tests/Speckle.Sdk.Serialization.Tests/Framework/ExceptionServerObjectManager.cs
index e6afc2a8..9c3482d0 100644
--- a/tests/Speckle.Sdk.Serialization.Tests/Framework/ExceptionServerObjectManager.cs
+++ b/tests/Speckle.Sdk.Serialization.Tests/Framework/ExceptionServerObjectManager.cs
@@ -8,6 +8,7 @@ public class ExceptionServerObjectManager : IServerObjectManager
 {
   public IAsyncEnumerable<(string, string)> DownloadObjects(
     IReadOnlyCollection<string> objectIds,
+    string? attributeMask,
     IProgress<ProgressArgs>? progress,
     CancellationToken cancellationToken
   ) => throw new NotImplementedException();
diff --git a/tests/Speckle.Sdk.Serialization.Tests/SerializationTests.cs b/tests/Speckle.Sdk.Serialization.Tests/SerializationTests.cs
index f2b3bc6a..40953afc 100644
--- a/tests/Speckle.Sdk.Serialization.Tests/SerializationTests.cs
+++ b/tests/Speckle.Sdk.Serialization.Tests/SerializationTests.cs
@@ -204,6 +204,7 @@ public class SerializationTests
         new DummySqLiteReceiveManager(closures),
         new DummyReceiveServerObjectManager(closures),
         null,
+        null,
         new NullLogger<ObjectLoader>(),
         default
       )
diff --git a/tests/Speckle.Sdk.Serialization.Tests/ServerObjectManagerTests.cs b/tests/Speckle.Sdk.Serialization.Tests/ServerObjectManagerTests.cs
index 5106d5b6..90e13dea 100644
--- a/tests/Speckle.Sdk.Serialization.Tests/ServerObjectManagerTests.cs
+++ b/tests/Speckle.Sdk.Serialization.Tests/ServerObjectManagerTests.cs
@@ -33,12 +33,12 @@ public class ServerObjectManagerTests : MoqTest
     var mockHttp = new MockHttpMessageHandler();
     Dictionary<string, string> postParameters = new()
     {
-      { "objects", JsonConvert.SerializeObject(new List<string> { id, id2 }) },
+      { "objectIds", JsonConvert.SerializeObject(new List<string> { id, id2 }) },
     };
 
     string serializedPayload = JsonConvert.SerializeObject(postParameters);
     mockHttp
-      .When(HttpMethod.Post, $"http://localhost/api/getobjects/{streamId}")
+      .When(HttpMethod.Post, $"http://localhost/api/v2/projects/{streamId}/object-stream/")
       .WithContent(serializedPayload)
       .Respond(
         "application/json",
@@ -59,7 +59,7 @@ public class ServerObjectManagerTests : MoqTest
       token,
       new(timeout: TimeSpan.FromSeconds(timeout))
     );
-    var results = serverObjectManager.DownloadObjects(new List<string> { id, id2 }, null, ct);
+    var results = serverObjectManager.DownloadObjects(new List<string> { id, id2 }, null, null, ct);
     var objects = new JObject();
     await foreach (var (x, json) in results)
     {
diff --git a/tests/Speckle.Sdk.Testing/Framework/DummyReceiveServerObjectManager.cs b/tests/Speckle.Sdk.Testing/Framework/DummyReceiveServerObjectManager.cs
index e038f33c..fad30ac2 100644
--- a/tests/Speckle.Sdk.Testing/Framework/DummyReceiveServerObjectManager.cs
+++ b/tests/Speckle.Sdk.Testing/Framework/DummyReceiveServerObjectManager.cs
@@ -10,6 +10,7 @@ public class DummyReceiveServerObjectManager(IReadOnlyDictionary<string, string>
 {
   public async IAsyncEnumerable<(string, string)> DownloadObjects(
     IReadOnlyCollection<string> objectIds,
+    string? attributeMask,
     IProgress<ProgressArgs>? progress,
     [EnumeratorCancellation] CancellationToken cancellationToken
   )
diff --git a/tests/Speckle.Sdk.Testing/Framework/DummySendServerObjectManager.cs b/tests/Speckle.Sdk.Testing/Framework/DummySendServerObjectManager.cs
index ca46a915..bd2a4653 100644
--- a/tests/Speckle.Sdk.Testing/Framework/DummySendServerObjectManager.cs
+++ b/tests/Speckle.Sdk.Testing/Framework/DummySendServerObjectManager.cs
@@ -9,6 +9,7 @@ public class DummySendServerObjectManager(ConcurrentDictionary<string, string> s
 {
   public IAsyncEnumerable<(string, string)> DownloadObjects(
     IReadOnlyCollection<string> objectIds,
+    string? attributeMask,
     IProgress<ProgressArgs>? progress,
     CancellationToken cancellationToken
   ) => throw new NotImplementedException();