diff --git a/CryptoExchange.Net/Clients/BaseApiClient.cs b/CryptoExchange.Net/Clients/BaseApiClient.cs
index 80377dd..7029d83 100644
--- a/CryptoExchange.Net/Clients/BaseApiClient.cs
+++ b/CryptoExchange.Net/Clients/BaseApiClient.cs
@@ -1,20 +1,6 @@
 using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Diagnostics.CodeAnalysis;
-using System.IO;
-using System.Linq;
-using System.Net.Http;
-using System.Threading;
-using System.Threading.Tasks;
-using System.Web;
 using CryptoExchange.Net.Authentication;
-using CryptoExchange.Net.Interfaces;
 using CryptoExchange.Net.Objects;
-using CryptoExchange.Net.Requests;
-using Microsoft.Extensions.Logging;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 
 namespace CryptoExchange.Net
 {
@@ -23,7 +9,7 @@ namespace CryptoExchange.Net
     /// </summary>
     public abstract class BaseApiClient: IDisposable
     {
-        private readonly ApiCredentials? _apiCredentials;
+        private ApiCredentials? _apiCredentials;
         private AuthenticationProvider? _authenticationProvider;
         private bool _created;
 
@@ -67,6 +53,14 @@ namespace CryptoExchange.Net
         /// <returns></returns>
         protected abstract AuthenticationProvider CreateAuthenticationProvider(ApiCredentials credentials);
 
+        /// <inheritdoc />
+        public void SetApiCredentials(ApiCredentials credentials)
+        {
+            _apiCredentials = credentials;
+            _created = false;
+            _authenticationProvider = null;
+        }
+
         /// <summary>
         /// Dispose
         /// </summary>
diff --git a/CryptoExchange.Net/Clients/BaseClient.cs b/CryptoExchange.Net/Clients/BaseClient.cs
index e923596..713efa3 100644
--- a/CryptoExchange.Net/Clients/BaseClient.cs
+++ b/CryptoExchange.Net/Clients/BaseClient.cs
@@ -5,6 +5,7 @@ using Microsoft.Extensions.Logging;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using System;
+using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Text;
@@ -22,6 +23,10 @@ namespace CryptoExchange.Net
         /// </summary>
         internal string ExchangeName { get; }
         /// <summary>
+        /// Api clients in this client
+        /// </summary>
+        internal List<BaseApiClient> ApiClients { get; } = new List<BaseApiClient>();
+        /// <summary>
         /// The log object
         /// </summary>
         protected internal Log log;
@@ -66,6 +71,16 @@ namespace CryptoExchange.Net
             log.Write(LogLevel.Debug, $"Client configuration: {options}, CryptoExchange.Net: v{typeof(BaseClient).Assembly.GetName().Version}, {ExchangeName}.Net: v{GetType().Assembly.GetName().Version}");
         }
 
+        /// <summary>
+        /// Register an API client
+        /// </summary>
+        /// <param name="apiClient">The client</param>
+        protected T AddApiClient<T>(T apiClient) where T:  BaseApiClient
+        {
+            ApiClients.Add(apiClient);
+            return apiClient;
+        }
+
         /// <summary>
         /// Tries to parse the json data and return a JToken, validating the input not being empty and being valid json
         /// </summary>
@@ -263,6 +278,8 @@ namespace CryptoExchange.Net
         public virtual void Dispose()
         {
             log.Write(LogLevel.Debug, "Disposing exchange client");
+            foreach (var client in ApiClients)
+                client.Dispose();
         }
     }
 }
diff --git a/CryptoExchange.Net/Clients/BaseRestClient.cs b/CryptoExchange.Net/Clients/BaseRestClient.cs
index 1d21c3a..a2df127 100644
--- a/CryptoExchange.Net/Clients/BaseRestClient.cs
+++ b/CryptoExchange.Net/Clients/BaseRestClient.cs
@@ -7,7 +7,7 @@ using System.Linq;
 using System.Net.Http;
 using System.Threading;
 using System.Threading.Tasks;
-using System.Web;
+using CryptoExchange.Net.Authentication;
 using CryptoExchange.Net.Interfaces;
 using CryptoExchange.Net.Objects;
 using CryptoExchange.Net.Requests;
@@ -57,9 +57,9 @@ namespace CryptoExchange.Net
         /// What request body should be set when no data is send (only used in combination with postParametersPosition.InBody)
         /// </summary>
         protected string requestBodyEmptyContent = "{}";
-                
+
         /// <inheritdoc />
-        public int TotalRequestsMade { get; private set; }
+        public int TotalRequestsMade => ApiClients.OfType<RestApiClient>().Sum(s => s.TotalRequestsMade);
 
         /// <summary>
         /// Request headers to be sent with each request
@@ -85,6 +85,12 @@ namespace CryptoExchange.Net
             RequestFactory.Configure(exchangeOptions.RequestTimeout, exchangeOptions.Proxy, exchangeOptions.HttpClient);
         }
 
+        /// <inheritdoc />
+        public void SetApiCredentials(ApiCredentials credentials)
+        {
+            foreach (var apiClient in ApiClients)
+                apiClient.SetApiCredentials(credentials);
+        }
 
         /// <summary>
         /// Execute a request to the uri and deserialize the response into the provided type parameter
@@ -154,8 +160,6 @@ namespace CryptoExchange.Net
             }
 
             apiClient.TotalRequestsMade++;
-            TotalRequestsMade++;
-
             log.Write(LogLevel.Debug, $"[{requestId}] Sending {method}{(signed ? " signed" : "")} request to {request.Uri}{paramString ?? " "}{(ClientOptions.Proxy == null ? "" : $" via proxy {ClientOptions.Proxy.Host}")}");
             return await GetResponseAsync<T>(request, deserializer, cancellationToken).ConfigureAwait(false);
         }
@@ -352,48 +356,6 @@ namespace CryptoExchange.Net
             }
 
             return request;
-
-            //var uriString = uri.ToString();
-            //if (apiClient.AuthenticationProvider != null)
-            //    parameters = apiClient.AuthenticationProvider.AddAuthenticationToParameters(uriString, method, parameters, signed, parameterPosition, arraySerialization);
-
-            //if (parameterPosition == HttpMethodParameterPosition.InUri && parameters?.Any() == true)
-            //    uriString += "?" + parameters.CreateParamString(true, arraySerialization);
-
-            //var contentType = requestBodyFormat == RequestBodyFormat.Json ? Constants.JsonContentHeader : Constants.FormContentHeader;
-            //var request = RequestFactory.Create(method, uriString, requestId);
-            //request.Accept = Constants.JsonContentHeader;
-
-            //var headers = new Dictionary<string, string>();
-            //if (apiClient.AuthenticationProvider != null)
-            //    headers = apiClient.AuthenticationProvider.AddAuthenticationToHeaders(uriString, method, parameters!, signed, parameterPosition, arraySerialization);
-
-            //foreach (var header in headers)
-            //    request.AddHeader(header.Key, header.Value);
-
-            //if (additionalHeaders != null) 
-            //{ 
-            //    foreach (var header in additionalHeaders)
-            //        request.AddHeader(header.Key, header.Value);
-            //}
-
-            //if(StandardRequestHeaders != null)
-            //{
-            //    foreach (var header in StandardRequestHeaders)
-            //        // Only add it if it isn't overwritten
-            //        if(additionalHeaders?.ContainsKey(header.Key) != true)
-            //            request.AddHeader(header.Key, header.Value);
-            //}
-
-            //if (parameterPosition == HttpMethodParameterPosition.InBody)
-            //{
-            //    if (parameters?.Any() == true)
-            //        WriteParamBody(request, parameters, contentType);
-            //    else
-            //        request.SetContent(requestBodyEmptyContent, contentType);
-            //}
-
-            //return request;
         }
 
         /// <summary>
@@ -427,11 +389,5 @@ namespace CryptoExchange.Net
         {
             return new ServerError(error.ToString());
         }
-
-        /// <inheritdoc />
-        public override void Dispose()
-        {
-            base.Dispose();
-        }
     }
 }
diff --git a/CryptoExchange.Net/Interfaces/IRestClient.cs b/CryptoExchange.Net/Interfaces/IRestClient.cs
index 1eabc49..30e9604 100644
--- a/CryptoExchange.Net/Interfaces/IRestClient.cs
+++ b/CryptoExchange.Net/Interfaces/IRestClient.cs
@@ -1,4 +1,5 @@
 using System;
+using CryptoExchange.Net.Authentication;
 using CryptoExchange.Net.Objects;
 
 namespace CryptoExchange.Net.Interfaces
@@ -22,5 +23,11 @@ namespace CryptoExchange.Net.Interfaces
         /// The options provided for this client
         /// </summary>
         BaseRestClientOptions ClientOptions { get; }
+
+        /// <summary>
+        /// Set the API credentials for this client. All Api clients in this client will use the new credentials, regardless of earlier set options.
+        /// </summary>
+        /// <param name="credentials">The credentials to set</param>
+        void SetApiCredentials(ApiCredentials credentials);
     }
 }
\ No newline at end of file