src/FrostFS.SDK.ClientV2/Client.cs

@@ -35,6 +35,11 @@ public class Client : IFrostFSClient
         return new Client(clientOptions, channelOptions);
     }
 
+    public static IFrostFSClient GetSingleOwnerInstance(IOptions<SingleOwnerClientSettings> clientOptions, GrpcChannelOptions? channelOptions = null)
+    {
+        return new Client(clientOptions, channelOptions);
+    }
+
     /// <summary>
     /// For test only. Provide custom implementation or mock object to inject required logic instead of internal gRPC client.
     /// </summary>
@@ -46,7 +51,7 @@ public class Client : IFrostFSClient
     /// <param name="objectService">Object.ObjectService.ObjectServiceClient implementation</param>
     /// <returns></returns>
     public static IFrostFSClient GetTestInstance(
-        IOptions<ClientSettings> clientOptions,
+        IOptions<SingleOwnerClientSettings> clientOptions,
         GrpcChannelOptions? channelOptions,
         NetmapService.NetmapServiceClient netmapService,
         SessionService.SessionServiceClient sessionService,
@@ -57,7 +62,7 @@ public class Client : IFrostFSClient
     }
 
     private Client(
-        IOptions<ClientSettings> settings,
+      IOptions<SingleOwnerClientSettings> settings,
       GrpcChannelOptions? channelOptions,
       ContainerService.ContainerServiceClient containerService,
       NetmapService.NetmapServiceClient netmapService,
@@ -68,7 +73,7 @@ public class Client : IFrostFSClient
         OwnerId.FromKey(ecdsaKey);
 
         ClientCtx = new ClientEnvironment(
-           this,
+           client: this,
            key: ecdsaKey,
            owner: OwnerId.FromKey(ecdsaKey),
            channel: InitGrpcChannel(settings.Value.Host, channelOptions),
@@ -86,6 +91,25 @@ public class Client : IFrostFSClient
 
         clientSettings.Validate();
 
+        var channel = InitGrpcChannel(clientSettings.Host, channelOptions);
+
+        ClientCtx = new ClientEnvironment(
+            this,
+            key: null,
+            owner: null,
+            channel: channel,
+            version: new Version(2, 13));
+
+        // TODO: define timeout logic
+        // CheckFrostFsVersionSupport(new Context { Timeout = TimeSpan.FromSeconds(20) });
+    }
+
+    private Client(IOptions<SingleOwnerClientSettings> options, GrpcChannelOptions? channelOptions)
+    {
+        var clientSettings = (options?.Value) ?? throw new ArgumentException("Options must be initialized");
+
+        clientSettings.Validate();
+
         var ecdsaKey = clientSettings.Key.LoadWif();
         
         var channel = InitGrpcChannel(clientSettings.Host, channelOptions);
@@ -221,22 +245,22 @@ public class Client : IFrostFSClient
     #endregion
 
     #region ToolsImplementation
-    public ObjectId CalculateObjectId(ObjectHeader header)
+    public ObjectId CalculateObjectId(ObjectHeader header, Context ctx)
     {
         if (header == null)
             throw new ArgumentNullException(nameof(header));
 
-        return ObjectTools.CalculateObjectId(header, ClientCtx);
+        return ObjectTools.CalculateObjectId(header, ctx);
     }
     #endregion
 
     private async void CheckFrostFsVersionSupport(Context? ctx = default)
     {
-        var args = new PrmNodeInfo(ctx);
+        var args = new PrmNodeInfo { Context = ctx };
         var service = GetNetmapService(args);
         var localNodeInfo = await service.GetLocalNodeInfoAsync(args);
       
-        if (!localNodeInfo.Version.IsSupported(ClientCtx.Version))
+        if (!localNodeInfo.Version.IsSupported(args.Context!.Version))
         {
             var msg = $"FrostFS {localNodeInfo.Version} is not supported.";
             throw new ApplicationException(msg);
@@ -250,6 +274,31 @@ public class Client : IFrostFSClient
 
         ctx.Context ??= new Context();
 
+        if (ctx.Context.Key == null)
+        {
+            if (ClientCtx.Key == null)
+            {
+                throw new Exception("Key is not initialized.");
+            }
+
+            ctx.Context.Key = ClientCtx.Key.ECDsaKey;
+        }
+
+        if (ctx.Context.OwnerId == null)
+        { 
+            ctx.Context.OwnerId = ClientCtx.Owner ?? OwnerId.FromKey(ctx.Context.Key);
+        }
+
+        if (ctx.Context.Version == null)
+        {
+            if (ClientCtx.Version == null)
+            {
+                throw new Exception("Version is not initialized.");
+            }
+
+            ctx.Context.Version = ClientCtx.Version;
+        }
+
         CallInvoker? callInvoker = null;
         if (ctx.Context.Interceptors != null && ctx.Context.Interceptors.Count > 0)
         {

src/FrostFS.SDK.ClientV2/Interfaces/IFrostFSClient.cs

@@ -45,6 +45,6 @@ public interface IFrostFSClient : IDisposable
     #endregion
     
     #region Tools
-    ObjectId CalculateObjectId(ObjectHeader header);
+    ObjectId CalculateObjectId(ObjectHeader header, Context ctx);
     #endregion
 }

src/FrostFS.SDK.ClientV2/Parameters/Context.cs

@@ -1,7 +1,10 @@
 using System;
 using System.Collections.Generic;
+using System.Security.Cryptography;
 using System.Threading;
 using FrostFS.SDK.ModelsV2;
+using FrostFS.SDK.Cryptography;
+using Google.Protobuf;
 using Grpc.Core.Interceptors;
 
 namespace FrostFS.SDK.ClientV2;
@@ -10,8 +13,18 @@ public class Context()
 {
     private List<Interceptor>? interceptors;
 
+    private ByteString publicKeyCache;
+
+    public ECDsa Key { get; set; }
+
+    public OwnerId OwnerId { get; set; }
+
+    public ModelsV2.Version Version { get; set; }
+
     public CancellationToken CancellationToken { get; set; } = default;
+    
     public TimeSpan Timeout { get; set; } = default;
+    
     public DateTime? Deadline => Timeout.Ticks > 0 ? DateTime.UtcNow.Add(Timeout) : null;
 
     public Action<CallStatistics>? Callback { get; set; }
@@ -21,4 +34,17 @@ public class Context()
         get { return this.interceptors ??= []; }
         set { this.interceptors = value; }
     }
+
+    public ByteString PublicKeyCache 
+    { 
+        get
+        {
+            if (publicKeyCache == null)
+            {
+                publicKeyCache = ByteString.CopyFrom(Key.PublicKey());
+            }
+
+            return publicKeyCache;
+        }
+    }
 }

src/FrostFS.SDK.ClientV2/Parameters/Credentials.cs

@@ -0,0 +1,11 @@
+using FrostFS.SDK.ModelsV2;
+using System.Security.Cryptography;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public class Credentials(ECDsa key, OwnerId ownerId)
+{
+    public ECDsa Key { get; } = key;
+
+    public OwnerId OwnerId { get; } = ownerId;
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmBase.cs

@@ -0,0 +1,14 @@
+using System.Collections.Specialized;
+
+namespace FrostFS.SDK.ClientV2.Parameters;
+
+public class PrmBase() : IContext
+{
+    /// <summary>
+    /// FrostFS request X-Headers
+    /// </summary>
+    public NameValueCollection XHeaders { get; set; } = [];
+
+    /// <inheritdoc />
+    public Context? Context { get; set; }
+}

src/FrostFS.SDK.ClientV2/Parameters/PrmContainerCreate.cs

@@ -1,8 +1,8 @@
-using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmContainerCreate(ModelsV2.Container container) : IContext
+public sealed class PrmContainerCreate(ModelsV2.Container container) : PrmBase, ISessionToken
 {
     public ModelsV2.Container Container { get; set; } = container;
 
@@ -12,11 +12,7 @@ public sealed class PrmContainerCreate(ModelsV2.Container container) : IContext
     /// <value>Rules for polling the result</value>
     public PrmWait? WaitParams { get; set; }
 
-    /// <summary>
+    public string SessionKey { get; set; }
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
 
-    /// <inheritdoc />
+    public SessionToken? SessionToken { get; set; }
-    public Context? Context { get; set; }
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmContainerDelete.cs

@@ -1,9 +1,8 @@
-using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
-using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmContainerDelete(ContainerId containerId, Context? ctx = null) : IContext
+public sealed class PrmContainerDelete(ContainerId containerId) : PrmBase, ISessionToken
 {
     public ContainerId ContainerId { get; set; } = containerId;
 
@@ -13,11 +12,5 @@ public sealed class PrmContainerDelete(ContainerId containerId, Context? ctx = n
     /// <value>Rules for polling the result</value>
     public PrmWait? WaitParams { get; set; }
 
-    /// <summary>
+    public SessionToken? SessionToken { get; set; }
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; } = ctx;
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmContainerGet.cs

@@ -1,17 +1,8 @@
-using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
-using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmContainerGet(ContainerId containerId, Context? ctx = null) : IContext
+public sealed class PrmContainerGet(ContainerId containerId) : PrmBase
 {
     public ContainerId ContainerId { get; set; } = containerId;
-
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; } = ctx;
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmContainerGetAll.cs

@@ -2,13 +2,6 @@
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmContainerGetAll() : IContext
+public sealed class PrmContainerGetAll() : PrmBase()
 {
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; }
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmNetmapSnapshot.cs

@@ -2,13 +2,6 @@
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmNetmapSnapshot(Context? context = default) : IContext
+public sealed class PrmNetmapSnapshot() : PrmBase
 {    
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; } = context;
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmNetworkSettings.cs

@@ -1,14 +1,5 @@
-using System.Collections.Specialized;
+namespace FrostFS.SDK.ClientV2.Parameters;
 
-namespace FrostFS.SDK.ClientV2.Parameters;
+public sealed class PrmNetworkSettings() : PrmBase
-
-public sealed class PrmNetworkSettings(Context? context = default) : IContext
 {   
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; } = context;
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmNodeInfo.cs

@@ -1,14 +1,5 @@
-using System.Collections.Specialized;
+namespace FrostFS.SDK.ClientV2.Parameters;
 
-namespace FrostFS.SDK.ClientV2.Parameters;
+public sealed class PrmNodeInfo() : PrmBase
-
-public sealed class PrmNodeInfo(Context? context = default) : IContext
 {   
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; } = context;
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmObjectDelete.cs

@@ -3,19 +3,12 @@ using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmObjectDelete(ContainerId containerId, ObjectId objectId) : IContext, ISessionToken
+public sealed class PrmObjectDelete(ContainerId containerId, ObjectId objectId) : PrmBase, ISessionToken
 {
     public ContainerId ContainerId { get; set; } = containerId;
+
     public ObjectId ObjectId { get; set; } = objectId;
 
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; }
-
     /// <inheritdoc />
     public SessionToken? SessionToken { get; set; }
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmObjectGet.cs

@@ -1,21 +1,13 @@
-using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
-using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmObjectGet(ContainerId containerId, ObjectId objectId) : IContext, ISessionToken
+public sealed class PrmObjectGet(ContainerId containerId, ObjectId objectId) : PrmBase, ISessionToken
 {
     public ContainerId ContainerId { get; set; } = containerId;
+
     public ObjectId ObjectId { get; set; } = objectId;
 
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; }
-
     /// <inheritdoc />
     public SessionToken? SessionToken { get; set; }
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmObjectHeadGet.cs

@@ -1,21 +1,13 @@
-using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
-using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmObjectHeadGet(ContainerId containerId, ObjectId objectId) : IContext, ISessionToken
+public sealed class PrmObjectHeadGet(ContainerId containerId, ObjectId objectId) : PrmBase, ISessionToken
 {
     public ContainerId ContainerId { get; set; } = containerId;
+    
     public ObjectId ObjectId { get; set; } = objectId;
    
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-    
-    /// <inheritdoc />
-    public Context? Context { get; set; }
-
     /// <inheritdoc />
     public SessionToken? SessionToken { get; set; }
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmObjectPut.cs

@@ -1,10 +1,10 @@
-using FrostFS.SDK.ModelsV2;
 using System.Collections.Specialized;
 using System.IO;
+using FrostFS.SDK.ModelsV2;
 
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmObjectPut : IContext, ISessionToken
+public sealed class PrmObjectPut : PrmBase, ISessionToken
 {
     /// <summary>
     /// Need to provide values like <c>ContainerId</c> and <c>ObjectType</c> to create and object.
@@ -37,14 +37,6 @@ public sealed class PrmObjectPut : IContext, ISessionToken
     /// </summary>
     public byte[]? CustomBuffer { get; set; }
 
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-    
-    /// <inheritdoc />
-    public Context? Context { get; set; }
-
     /// <inheritdoc />
     public SessionToken? SessionToken { get; set; }
 

src/FrostFS.SDK.ClientV2/Parameters/PrmObjectSearch.cs

@@ -1,9 +1,8 @@
-using System.Collections.Generic;
+using FrostFS.SDK.ModelsV2;
-using System.Collections.Specialized;
+using System.Collections.Generic;
-using FrostFS.SDK.ModelsV2;
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmObjectSearch(ContainerId containerId, params IObjectFilter[] filters) : IContext, ISessionToken
+public sealed class PrmObjectSearch(ContainerId containerId, params IObjectFilter[] filters) : PrmBase, ISessionToken
 {
     /// <summary>
     /// Defines container for the search
@@ -17,14 +16,6 @@ public sealed class PrmObjectSearch(ContainerId containerId, params IObjectFilte
     /// <value>Collection of filters</value>
     public IEnumerable<IObjectFilter> Filters { get; set; } = filters;
     
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; }
-
     /// <inheritdoc />
     public SessionToken? SessionToken { get; set; }
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmSessionCreate.cs

@@ -1,16 +1,6 @@
-using System.Collections.Specialized;
+namespace FrostFS.SDK.ClientV2.Parameters;
 
-namespace FrostFS.SDK.ClientV2.Parameters;
+public sealed class PrmSessionCreate(ulong expiration) : PrmBase
-
-public sealed class PrmSessionCreate(ulong expiration, Context? context = default) : IContext
 {
     public ulong Expiration { get; set; } = expiration;
-
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];    
-
-    /// <inheritdoc />
-    public Context? Context { get; set; } = context;
 }

src/FrostFS.SDK.ClientV2/Parameters/PrmSingleObjectPut.cs

@@ -1,19 +1,11 @@
-using System.Collections.Specialized;
+using FrostFS.SDK.ModelsV2;
-using FrostFS.SDK.ModelsV2;
+
 namespace FrostFS.SDK.ClientV2.Parameters;
 
-public sealed class PrmSingleObjectPut(FrostFsObject frostFsObject, Context? context = null) : IContext, ISessionToken
+public sealed class PrmSingleObjectPut(FrostFsObject frostFsObject) : PrmBase, ISessionToken
 {
     public FrostFsObject FrostFsObject { get; set; } = frostFsObject;
 
-    /// <summary>
-    /// FrostFS request X-Headers
-    /// </summary>
-    public NameValueCollection XHeaders { get; set; } = [];
-
-    /// <inheritdoc />
-    public Context? Context { get; set; } = context;
-
     /// <inheritdoc />
     public SessionToken? SessionToken { get; set; }
 }

src/FrostFS.SDK.ClientV2/Services/ContainerServiceProvider.cs

@@ -17,7 +17,7 @@ internal class ContainerServiceProvider(ContainerService.ContainerServiceClient
 {
     internal async Task<ModelsV2.Container> GetContainerAsync(PrmContainerGet args)
     {
-        GetRequest request = GetContainerRequest(args.ContainerId.ToMessage(), args.XHeaders);
+        GetRequest request = GetContainerRequest(args.ContainerId.ToMessage(), args.XHeaders, args.Context!);
 
         var response = await service.GetAsync(request, null, args.Context!.Deadline, args.Context.CancellationToken);
 
@@ -34,12 +34,12 @@ internal class ContainerServiceProvider(ContainerService.ContainerServiceClient
         {
             Body = new ListRequest.Types.Body
             {
-                OwnerId = Context.Owner.ToMessage()
+                OwnerId = ctx.OwnerId.ToMessage()
             }
         };
         
         request.AddMetaHeader(args.XHeaders);
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         var response = await service.ListAsync(request, null, ctx.Deadline, ctx.CancellationToken);
        
@@ -55,20 +55,20 @@ internal class ContainerServiceProvider(ContainerService.ContainerServiceClient
     {
         var ctx = args.Context!;
         var grpcContainer = args.Container.ToMessage(); 
-        grpcContainer.OwnerId = Context.Owner.ToMessage();
+        grpcContainer.OwnerId = ctx.OwnerId.ToMessage();
-        grpcContainer.Version = Context.Version.ToMessage();
+        grpcContainer.Version = ctx.Version.ToMessage();
         
         var request = new PutRequest
         {
             Body = new PutRequest.Types.Body
             {
                 Container = grpcContainer,
-                Signature = Context.Key.ECDsaKey.SignRFC6979(grpcContainer)               
+                Signature = ctx.Key.SignRFC6979(grpcContainer)               
             }
         };
 
         request.AddMetaHeader(args.XHeaders);
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         var response = await service.PutAsync(request, null, ctx.Deadline, ctx.CancellationToken);
       
@@ -87,13 +87,13 @@ internal class ContainerServiceProvider(ContainerService.ContainerServiceClient
             Body = new DeleteRequest.Types.Body
             {
                 ContainerId = args.ContainerId.ToMessage(),
-                Signature = Context.Key.ECDsaKey.SignRFC6979(args.ContainerId.ToMessage().Value)
+                Signature = ctx.Key.SignRFC6979(args.ContainerId.ToMessage().Value)
             }
         };
 
         request.AddMetaHeader(args.XHeaders);
 
-	    request.Sign(Context.Key.ECDsaKey);
+	    request.Sign(ctx.Key);
 
         var response = await service.DeleteAsync(request, null, ctx.Deadline, ctx.CancellationToken);
 
@@ -102,7 +102,7 @@ internal class ContainerServiceProvider(ContainerService.ContainerServiceClient
         Verifier.CheckResponse(response);
     }
 
-    private GetRequest GetContainerRequest(ContainerID id, NameValueCollection? xHeaders)
+    private static GetRequest GetContainerRequest(ContainerID id, NameValueCollection? xHeaders, Context ctx)
     {
         var request = new GetRequest
         {
@@ -113,7 +113,7 @@ internal class ContainerServiceProvider(ContainerService.ContainerServiceClient
         };
 
         request.AddMetaHeader(xHeaders);
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         return request;
     }
@@ -126,7 +126,7 @@ internal class ContainerServiceProvider(ContainerService.ContainerServiceClient
 
     private async Task WaitForContainer(WaitExpects expect, ContainerID id, PrmWait? waitParams, Context ctx)
     {
-        var request = GetContainerRequest(id, null);
+        var request = GetContainerRequest(id, null, ctx);
 
         async Task action()
         {

src/FrostFS.SDK.ClientV2/Services/NetmapServiceProvider.cs

@@ -49,7 +49,7 @@ internal class NetmapServiceProvider : ContextAccessor
         };
 
         request.AddMetaHeader(args.XHeaders);
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
         
         var response = await netmapServiceClient.LocalNodeInfoAsync(request, null, ctx.Deadline, ctx.CancellationToken);
 
@@ -63,7 +63,7 @@ internal class NetmapServiceProvider : ContextAccessor
         var request = new NetworkInfoRequest(); 
 
         request.AddMetaHeader(null);
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
  
         var response = await netmapServiceClient.NetworkInfoAsync(request, null, ctx.Deadline, ctx.CancellationToken);
 
@@ -79,7 +79,7 @@ internal class NetmapServiceProvider : ContextAccessor
         var request = new NetmapSnapshotRequest();
 
         request.AddMetaHeader(args.XHeaders);
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
  
         var response = await netmapServiceClient.NetmapSnapshotAsync(request, null, ctx.Deadline, ctx.CancellationToken);
 

src/FrostFS.SDK.ClientV2/Services/ObjectServiceProvider.cs

@@ -46,11 +46,11 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         sessionToken.CreateObjectTokenContext(
             request.Body.Address,
             ObjectSessionContext.Types.Verb.Head,
-            Context.Key.ECDsaKey);
+            ctx.Key);
 
         request.AddMetaHeader(args.XHeaders, sessionToken);
 
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         var response = await client!.HeadAsync(request, null, ctx.Deadline, ctx.CancellationToken);
         
@@ -80,11 +80,11 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         sessionToken.CreateObjectTokenContext(
             request.Body.Address,
             ObjectSessionContext.Types.Verb.Get,
-            Context.Key.ECDsaKey);
+            ctx.Key);
 
         request.AddMetaHeader(args.XHeaders, sessionToken);
 
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         return await GetObject(request, ctx);
     }
@@ -109,10 +109,10 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         sessionToken.CreateObjectTokenContext(
             request.Body.Address,
             ObjectSessionContext.Types.Verb.Delete,
-            Context.Key.ECDsaKey);
+            ctx.Key);
 
         request.AddMetaHeader(args.XHeaders, sessionToken);
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         var response = await client.DeleteAsync(request, null, ctx.Deadline, ctx.CancellationToken);
         
@@ -139,11 +139,11 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         sessionToken.CreateObjectTokenContext(
             new Address { ContainerId = request.Body.ContainerId },
             ObjectSessionContext.Types.Verb.Search,
-            Context.Key.ECDsaKey);
+            ctx.Key);
 
         request.AddMetaHeader(args.XHeaders, sessionToken);
                 
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         var objectsIds = SearchObjects(request, ctx);
 
@@ -177,7 +177,7 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
     internal async Task<ObjectId> PutSingleObjectAsync(PrmSingleObjectPut args)
     {
         var ctx = args.Context!;
-        var grpcObject = ObjectTools.CreateObject(args.FrostFsObject, env);
+        var grpcObject = ObjectTools.CreateObject(args.FrostFsObject, ctx);
 
         var request = new PutSingleRequest
         {
@@ -192,11 +192,11 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         sessionToken.CreateObjectTokenContext(
             new Address { ContainerId = grpcObject.Header.ContainerId, ObjectId = grpcObject.ObjectId},
             ObjectSessionContext.Types.Verb.Put,
-            Context.Key.ECDsaKey);
+            ctx.Key);
 
         request.AddMetaHeader(args.XHeaders, sessionToken);
 
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         var response = await client.PutSingleAsync(request, null, ctx.Deadline, ctx.CancellationToken);
 
@@ -226,7 +226,7 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
 
         if (args.MaxObjectSizeCache == 0)
         {
-            var networkSettings = await Context.Client.GetNetworkSettingsAsync(new PrmNetworkSettings(ctx));
+            var networkSettings = await Context.Client.GetNetworkSettingsAsync(new PrmNetworkSettings() { Context = ctx });
             args.MaxObjectSizeCache = (int)networkSettings.MaxObjectSize;
         }
 
@@ -331,7 +331,7 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
 
             while (objectLimitSize == 0 || sentBytes < objectLimitSize)
             {
-                // send chanks limited to default or user's settings
+                // send chunks limited to default or user's settings
                 var bufferSize = objectLimitSize > 0 ?
                     (int)Math.Min(objectLimitSize - sentBytes, chunkSize)
                     : chunkSize;
@@ -351,7 +351,7 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
                     }
                 };
 
-                chunkRequest.Sign(Context.Key.ECDsaKey);
+                chunkRequest.Sign(ctx.Key);
 
                 await stream.Write(chunkRequest);
             }
@@ -374,14 +374,14 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
     {
         var header = args.Header!;
 
-        header.OwnerId = Context.Owner;
+        header.OwnerId = ctx.OwnerId;
-        header.Version = Context.Version;
+        header.Version = ctx.Version;
 
         var grpcHeader = header.ToMessage();
 
         if (header.Split != null)
         {
-            ObjectTools.SetSplitValues(grpcHeader, header.Split, env);
+            ObjectTools.SetSplitValues(grpcHeader, header.Split, ctx);
         }
 
         var oid = new ObjectID { Value = grpcHeader.Sha256() };
@@ -402,12 +402,12 @@ internal class ObjectServiceProvider(ObjectService.ObjectServiceClient client, C
         sessionToken.CreateObjectTokenContext(
             new Address { ContainerId = grpcHeader.ContainerId, ObjectId = oid },
             ObjectSessionContext.Types.Verb.Put,
-            Context.Key.ECDsaKey
+            ctx.Key
         );
 
         initRequest.AddMetaHeader(args.XHeaders, sessionToken);
 
-        initRequest.Sign(Context.Key.ECDsaKey);
+        initRequest.Sign(ctx.Key);
 
         return await PutObjectInit(initRequest, ctx);
     }

src/FrostFS.SDK.ClientV2/Services/SessionServiceProvider.cs

@@ -17,17 +17,18 @@ internal class SessionServiceProvider : ContextAccessor
 
     internal async Task<SessionToken> CreateSessionAsync(PrmSessionCreate args)
     {
+        var ctx = args.Context!;
         var request = new CreateRequest
         {
             Body = new CreateRequest.Types.Body
             {
-                OwnerId = Context.Owner.ToMessage(),
+                OwnerId = ctx.OwnerId.ToMessage(),
                 Expiration = args.Expiration
             }
         };
 
         request.AddMetaHeader(args.XHeaders);
-        request.Sign(Context.Key.ECDsaKey);
+        request.Sign(ctx.Key);
 
         return await CreateSession(request, args.Context!);
     }

src/FrostFS.SDK.ClientV2/Services/Shared/SessionProvider.cs

@@ -15,7 +15,7 @@ internal class SessionProvider(ClientEnvironment env)
     {
         if (args.SessionToken is null)
         { 
-            return await env.Client.CreateSessionInternalAsync(new PrmSessionCreate(uint.MaxValue, ctx));
+            return await env.Client.CreateSessionInternalAsync(new PrmSessionCreate(uint.MaxValue) { Context = ctx });
         }
 
         return new Session.SessionToken().Deserialize(args.SessionToken.Token);

src/FrostFS.SDK.ClientV2/Tools/ClientEnvironment.cs

@@ -1,25 +1,26 @@
 using FrostFS.SDK.ModelsV2;
-using Google.Protobuf;
 using Grpc.Net.Client;
 using System;
 using System.Security.Cryptography;
 using FrostFS.SDK.Cryptography;
-using System.Buffers;
 
 namespace FrostFS.SDK.ClientV2;
 
-public class ClientEnvironment(Client client, ECDsa key, OwnerId owner, GrpcChannel channel, ModelsV2.Version version) : IDisposable
+public class ClientEnvironment(Client client, ECDsa? key, OwnerId? owner, GrpcChannel channel, ModelsV2.Version version) : IDisposable
 {
     private ArrayPool<byte> _arrayPool;
 
-    internal OwnerId Owner { get; } = owner;
+    internal OwnerId? Owner { get; } = owner;
+
     internal GrpcChannel Channel { get; private set; } = channel;
+
     internal ModelsV2.Version Version { get; } = version;
+
     internal NetworkSettings? NetworkSettings { get; set; }
 
     internal Client Client { get; } = client;
 
-    internal ClientKey Key { get; } = new ClientKey(key);
+    internal ClientKey? Key { get; } = key != null ? new ClientKey(key) : null;
 
     /// <summary>
     /// Custom pool is used for predefined sizes of buffers like grpc chunk 

src/FrostFS.SDK.ClientV2/Tools/ObjectTools.cs

@@ -7,26 +7,25 @@ using FrostFS.Refs;
 using FrostFS.SDK.ClientV2.Mappers.GRPC;
 using FrostFS.SDK.Cryptography;
 using FrostFS.SDK.ModelsV2;
-using static FrostFS.Object.Header.Types;
 
 namespace FrostFS.SDK.ClientV2;
 
 internal class ObjectTools
 {
-    internal static ObjectId CalculateObjectId(ObjectHeader header, ClientEnvironment env)
+    internal static ObjectId CalculateObjectId(ObjectHeader header, Context ctx)
     { 
-        var grpcHeader = CreateHeader(header, [], env);
+        var grpcHeader = CreateHeader(header, [], ctx);
 
         if (header.Split != null)
-            SetSplitValues(grpcHeader, header.Split, env);
+            SetSplitValues(grpcHeader, header.Split, ctx);
 
         return new ObjectID { Value = grpcHeader.Sha256() }.ToModel();        
     }
 
-    internal static  Object.Object CreateObject(FrostFsObject @object, ClientEnvironment env)
+    internal static  Object.Object CreateObject(FrostFsObject @object, Context ctx)
     {
-        @object.Header.OwnerId = env.Owner;
+        @object.Header.OwnerId = ctx.OwnerId;
-        @object.Header.Version = env.Version;
+        @object.Header.Version = ctx.Version;
 
         var grpcHeader = @object.Header.ToMessage();
               
@@ -36,7 +35,7 @@ internal class ObjectTools
         var split = @object.Header.Split;
         if (split != null)
         {
-            SetSplitValues(grpcHeader, split, env);
+            SetSplitValues(grpcHeader, split, ctx);
         }
 
         var obj = new Object.Object
@@ -48,14 +47,14 @@ internal class ObjectTools
 
         obj.Signature = new Refs.Signature
         {
-            Key = env.Key.PublicKeyProto,
+            Key = ctx.PublicKeyCache,
-            Sign = ByteString.CopyFrom(env.Key.ECDsaKey.SignData(obj.ObjectId.ToByteArray())),
+            Sign = ByteString.CopyFrom(ctx.Key.SignData(obj.ObjectId.ToByteArray())),
         };        
       
         return obj;
     }
 
-    internal static void SetSplitValues(Header grpcHeader, ModelsV2.Split split, ClientEnvironment env)
+    internal static void SetSplitValues(Header grpcHeader, ModelsV2.Split split, Context ctx)
     {
         grpcHeader.Split = new Header.Types.Split
         {
@@ -67,14 +66,14 @@ internal class ObjectTools
 
         if (split.ParentHeader is not null)
         {
-            var grpcParentHeader = CreateHeader(split.ParentHeader, [], env);
+            var grpcParentHeader = CreateHeader(split.ParentHeader, [], ctx);
 
             grpcHeader.Split.Parent = new ObjectID { Value = grpcParentHeader.Sha256() };
             grpcHeader.Split.ParentHeader = grpcParentHeader;
             grpcHeader.Split.ParentSignature = new Refs.Signature
             {
-                Key = env.Key.PublicKeyProto,
+                Key = ctx.PublicKeyCache,
-                Sign = ByteString.CopyFrom(env.Key.ECDsaKey.SignData(grpcHeader.Split.Parent.ToByteArray())),
+                Sign = ByteString.CopyFrom(ctx.Key.SignData(grpcHeader.Split.Parent.ToByteArray())),
             };
 
             split.Parent = grpcHeader.Split.Parent.ToModel();
@@ -83,12 +82,12 @@ internal class ObjectTools
         grpcHeader.Split.Previous = split.Previous?.ToMessage();
     }
 
-    internal static Header CreateHeader(ObjectHeader header, byte[]? payload, ClientEnvironment env)
+    internal static Header CreateHeader(ObjectHeader header, byte[]? payload, Context ctx)
     {
         var grpcHeader = header.ToMessage();
        
-        grpcHeader.OwnerId = env.Owner.ToMessage();
+        grpcHeader.OwnerId = ctx.OwnerId.ToMessage();
-        grpcHeader.Version = env.Version.ToMessage();
+        grpcHeader.Version = ctx.Version.ToMessage();
 
         if (payload != null) //  && payload.Length > 0    
             grpcHeader.PayloadHash = Sha256Checksum(payload);

src/FrostFS.SDK.ModelsV2/Client/ClientSettings.cs

@@ -1,28 +1,64 @@
+using Google.Protobuf;
 using System;
+using System.Collections.Generic;
 using System.Text;
 
 namespace FrostFS.SDK.ModelsV2;
 
 public class ClientSettings
 {
-    private static readonly string errorTemplate = "{0} is required parameter";
+    protected static readonly string errorTemplate = "{0} is required parameter";
-
-    public string Key { get; set; } = string.Empty;
 
     public string Host { get; set; } = string.Empty;
 
-    public void Validate()
+    public virtual void Validate()
     {
-        StringBuilder? error = null;
+        var errors = CheckFields();
+        if (errors != null) 
+            ThrowException(errors);
+    }
 
-        if (string.IsNullOrWhiteSpace(Key))
+    protected List<string>? CheckFields()
-            (error ??= new StringBuilder()).AppendLine(string.Format(errorTemplate, nameof(Key)));
+    {
+        List<string>? errors = null;
 
         if (string.IsNullOrWhiteSpace(Host))
-            (error ??= new StringBuilder()).AppendLine(string.Format(errorTemplate, nameof(Host)));
+            (errors ??= []).Add(string.Format(errorTemplate, nameof(Host)));
 
-        if (error != null)
+        return errors;
-            throw new ArgumentException(error.ToString());
     }
 
+    protected static void ThrowException(List<string> errors)
+    {  
+        StringBuilder messages = new();
+
+        foreach (var error in errors)
+        {
+            messages.AppendLine(error);
+        }
+
+        throw new ArgumentException(messages.ToString());
+    }
+}
+
+public class SingleOwnerClientSettings : ClientSettings
+{
+    public string Key { get; set; } = string.Empty;
+
+    public override void Validate()
+    {
+        var errors = CheckFields();
+        if (errors != null)
+            ThrowException(errors);       
+    }
+
+    protected List<string>? CheckFields()
+    {
+        List<string>? errors = base.CheckFields();
+
+        if (string.IsNullOrWhiteSpace(Key))
+            (errors ??= []).Add(string.Format(errorTemplate, nameof(Key)));
+
+        return errors;
+    }  
 }

src/FrostFS.SDK.Tests/ContainerTest.cs

@@ -16,12 +16,12 @@ public abstract class ContainerTestsBase
 {
     protected readonly string key = "KwHDAJ66o8FoLBjVbjP2sWBmgBMGjt7Vv4boA7xQrBoAYBE397Aq";
 
-    protected IOptions<ClientSettings> Settings { get; set; }
+    protected IOptions<SingleOwnerClientSettings> Settings { get; set; }
     protected ContainerMocker Mocker { get; set; }
 
     protected ContainerTestsBase()
     {
-        Settings = Options.Create(new ClientSettings
+        Settings = Options.Create(new SingleOwnerClientSettings
         {
             Key = key,
             Host = "http://localhost:8080"

src/FrostFS.SDK.Tests/ObjectTest.cs

@@ -19,7 +19,7 @@ public abstract class ObjectTestsBase
 {
     protected static readonly string key = "KwHDAJ66o8FoLBjVbjP2sWBmgBMGjt7Vv4boA7xQrBoAYBE397Aq";
 
-    protected IOptions<ClientSettings> Settings { get; set; }
+    protected IOptions<SingleOwnerClientSettings> Settings { get; set; }
     protected ContainerId ContainerId { get; set; }
 
     protected NetworkMocker NetworkMocker { get; set; } = new NetworkMocker(key);
@@ -31,7 +31,7 @@ public abstract class ObjectTestsBase
     {
         var ecdsaKey = key.LoadWif();
         
-        Settings = Options.Create(new ClientSettings
+        Settings = Options.Create(new SingleOwnerClientSettings
         {
             Key = key,
             Host = "http://localhost:8080"
@@ -71,14 +71,17 @@ public class ObjectTest : ObjectTestsBase
     public async void GetObjectTest()
     {
         var client = GetClient();
-        var objectId = client.CalculateObjectId(Mocker.ObjectHeader!);
 
-        var context = new Context
+        var ecdsaKey = key.LoadWif();
-        {
-            Timeout = TimeSpan.FromSeconds(2)
-        };
 
-        var result = await client.GetObjectAsync(new PrmObjectGet(ContainerId, objectId) { Context = context });
+        var ctx = new Context {
+                Key = ecdsaKey, 
+                OwnerId = OwnerId.FromKey(ecdsaKey), 
+                Version = new ModelsV2.Version(2, 13) };
+
+        var objectId = client.CalculateObjectId(Mocker.ObjectHeader!, ctx);
+               
+        var result = await client.GetObjectAsync(new PrmObjectGet(ContainerId, objectId) { Context = ctx });
 
         Assert.NotNull(result);
 

src/FrostFS.SDK.Tests/SmokeTests.cs

@@ -13,21 +13,46 @@ using System.Diagnostics;
 
 using static FrostFS.Session.SessionToken.Types.Body;
 using FrostFS.SDK.ClientV2.Parameters;
+using FrostFS.SDK.Tests;
 
 namespace FrostFS.SDK.SmokeTests;
 
-public class SmokeTests
+public abstract class SmokeTestsBase
+{
+    protected readonly string key = "KwHDAJ66o8FoLBjVbjP2sWBmgBMGjt7Vv4boA7xQrBoAYBE397Aq";
+    protected readonly string url = "http://172.23.32.4:8080";
+
+    protected ECDsa Key { get; }
+
+    protected OwnerId OwnerId { get; }
+
+    protected ModelsV2.Version Version { get; }
+
+    protected Context Ctx { get; }
+
+    protected SmokeTestsBase()
+    {
+        Key = key.LoadWif();
+        OwnerId = OwnerId.FromKey(Key);
+        Version = new ModelsV2.Version(2, 13);
+
+        Ctx = new Context { Key = Key, OwnerId = OwnerId, Version = Version };
+    }
+}
+
+public class SmokeTests : SmokeTestsBase
 {
     private static readonly PrmWait lightWait = new (100, 1);
-    private readonly string key = "KwHDAJ66o8FoLBjVbjP2sWBmgBMGjt7Vv4boA7xQrBoAYBE397Aq";
-    private readonly string url = "http://172.23.32.4:8080";
 
-    [Fact]
+    [Theory]
-    public async void NetworkMapTest()
+    [InlineData(false)]
+    [InlineData(true)]
+    public async void NetworkMapTest(bool isSingleOnwerClient)
     {
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = isSingleOnwerClient ? Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url)) : Client.GetInstance(GetOptions(this.url));
         
-        var result = await client.GetNetmapSnapshotAsync();
+        PrmNetmapSnapshot? prm = isSingleOnwerClient ? default : new () { Context = Ctx };
+        var result = await client.GetNetmapSnapshotAsync(prm);
 
         Assert.True(result.Epoch > 0);
         Assert.Single(result.NodeInfoCollection);
@@ -41,12 +66,17 @@ public class SmokeTests
         Assert.Equal(9, item.Attributes.Count);
     }
 
-    [Fact]
-    public async void NodeInfoTest()
-    {
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
 
-        var result = await client.GetNodeInfoAsync();
+    [Theory]
+    [InlineData(false)]
+    [InlineData(true)]
+    public async void NodeInfoTest(bool isSingleOnwerClient)
+    {
+        using var client = isSingleOnwerClient ? Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url)) : Client.GetInstance(GetOptions(this.url));
+
+        PrmNodeInfo? prm = isSingleOnwerClient ? default : new() { Context = Ctx };
+
+        var result = await client.GetNodeInfoAsync(prm);
 
         Assert.Equal(2, result.Version.Major);
         Assert.Equal(13, result.Version.Minor);
@@ -64,25 +94,25 @@ public class SmokeTests
             Callback = (cs) => Console.WriteLine($"{cs.MethodName} took {cs.ElapsedMicroSeconds} microseconds")
         };
 
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url));
 
         var result = await client.GetNodeInfoAsync();       
     }
 
-    [Fact]
+    [Theory]
-    public async void GetSessionTest()
+    [InlineData(false)]
+    [InlineData(true)]
+    public async void GetSessionTest(bool isSingleOnwerClient)
     {
-        var ecdsaKey = this.key.LoadWif();
+        using var client = isSingleOnwerClient ? Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url)) : Client.GetInstance(GetOptions(this.url));
 
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+        PrmSessionCreate? prm = isSingleOnwerClient ? new PrmSessionCreate(100) : new PrmSessionCreate(100) { Context = Ctx };
 
-        var token = await client.CreateSessionAsync(new PrmSessionCreate(100));
+        var token = await client.CreateSessionAsync(prm);
 
         var session = new Session.SessionToken().Deserialize(token.Token);
 
-        var owner = OwnerId.FromKey(ecdsaKey);
+        var ownerHash = Base58.Decode(OwnerId.Value);
-
-        var ownerHash = Base58.Decode(owner.Value);
        
         Assert.NotNull(session);
         Assert.Null(session.Body.Container);
@@ -97,7 +127,7 @@ public class SmokeTests
     [Fact]
     public async void CreateObjectWithSessionToken()
     {
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url));
        
         await Cleanup(client);
 
@@ -144,7 +174,7 @@ public class SmokeTests
     [Fact]
     public async void FilterTest()
     {
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url));
 
         await Cleanup(client);
 
@@ -230,7 +260,7 @@ public class SmokeTests
     [InlineData(6 * 1024 * 1024 + 100)]
     public async void SimpleScenarioTest(int objectSize)
     {
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url));
        
         await Cleanup(client);
 
@@ -253,7 +283,7 @@ public class SmokeTests
 
         var containerId = await client.CreateContainerAsync(createContainerParam);
 
-        var container = await client.GetContainerAsync(new PrmContainerGet(containerId,ctx));
+        var container = await client.GetContainerAsync(new PrmContainerGet(containerId) { Context = ctx });
         Assert.NotNull(container);
         Assert.True(callbackInvoked);
 
@@ -318,7 +348,7 @@ public class SmokeTests
     [InlineData(6 * 1024 * 1024 + 100)]
     public async void SimpleScenarioWithSessionTest(int objectSize)
     {
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url));
 
         var token = await client.CreateSessionAsync(new PrmSessionCreate(int.MaxValue));
 
@@ -338,7 +368,7 @@ public class SmokeTests
 
         var containerId = await client.CreateContainerAsync(createContainerParam);
 
-        var container = await client.GetContainerAsync(new PrmContainerGet(containerId,ctx));
+        var container = await client.GetContainerAsync(new PrmContainerGet(containerId) { Context = ctx });
         Assert.NotNull(container);
 
         var bytes = GetRandomBytes(objectSize);
@@ -406,7 +436,7 @@ public class SmokeTests
     [InlineData(200)]
     public async void ClientCutScenarioTest(int objectSize)
     {        
-        using var client = Client.GetInstance(GetOptions(this.key, this.url));
+        using var client = Client.GetSingleOwnerInstance(GetSingleOwnerOptions(this.key, this.url));
 
         await Cleanup(client);
 
@@ -417,13 +447,13 @@ public class SmokeTests
 
         var containerId = await client.CreateContainerAsync(createContainerParam);
 
-        var context = new Context
+        var ctx = new Context
         {
             Timeout = TimeSpan.FromSeconds(10),
             Interceptors = new([new MetricsInterceptor()])
         };
 
-        var container = await client.GetContainerAsync(new PrmContainerGet(containerId, context));
+        var container = await client.GetContainerAsync(new PrmContainerGet(containerId) { Context = ctx });
 
         Assert.NotNull(container);
 
@@ -499,11 +529,19 @@ public class SmokeTests
         return bytes;
     }
 
-    private static IOptions<ClientSettings> GetOptions(string key, string url)
+    private static IOptions<SingleOwnerClientSettings> GetSingleOwnerOptions(string key, string url)
+    {
+        return Options.Create(new SingleOwnerClientSettings
+        {
+            Key = key,
+            Host = url
+        });
+    }
+
+    private static IOptions<ClientSettings> GetOptions(string url)
     {
         return Options.Create(new ClientSettings
         {
-            Key = key,
             Host = url
         });
     }