diff --git a/Craftgate/Adapter/BkmExpressPaymentAdapter.cs b/Craftgate/Adapter/BkmExpressPaymentAdapter.cs
new file mode 100644
index 0000000..85a7530
--- /dev/null
+++ b/Craftgate/Adapter/BkmExpressPaymentAdapter.cs
@@ -0,0 +1,41 @@
+using System.Threading.Tasks;
+using Craftgate.Net;
+using Craftgate.Request;
+using Craftgate.Request.Common;
+using Craftgate.Response;
+
+namespace Craftgate.Adapter
+{
+    public class BkmExpressPaymentAdapter : BaseAdapter
+    {
+        public BkmExpressPaymentAdapter(RequestOptions requestOptions) : base(requestOptions)
+        {
+        }
+
+        public InitBkmExpressResponse Init(InitBkmExpressRequest initBkmExpressRequest)
+        {
+            var path = "/payment/v1/bkm-express/init";
+            return RestClient.Post<InitBkmExpressResponse>(RequestOptions.BaseUrl + path,
+                CreateHeaders(initBkmExpressRequest, path, RequestOptions), initBkmExpressRequest);
+        }
+
+        public PaymentResponse Complete(
+            CompleteBkmExpressRequest completeBkmExpressPayment)
+        {
+            var path = "/payment/v1/bkm-express/complete";
+            return RestClient.Post<PaymentResponse>(RequestOptions.BaseUrl + path,
+                CreateHeaders(completeBkmExpressPayment, path, RequestOptions),
+                completeBkmExpressPayment);
+        }
+
+        public PaymentResponse RetrievePayment(
+            string ticketId)
+        {
+            var path = "/payment/v1/bkm-express/payments/" + ticketId;
+            return RestClient.Get<PaymentResponse>(RequestOptions.BaseUrl + path,
+                CreateHeaders(path, RequestOptions));
+        }
+
+    }
+        
+}
\ No newline at end of file
diff --git a/Craftgate/CraftgateClient.cs b/Craftgate/CraftgateClient.cs
index c39638e..e0744d3 100644
--- a/Craftgate/CraftgateClient.cs
+++ b/Craftgate/CraftgateClient.cs
@@ -21,6 +21,7 @@ public class CraftgateClient
         private readonly BankAccountTrackingAdapter _bankAccountTrackingAdapter;
         private readonly MerchantAdapter _merchantAdapter;
         private readonly JuzdanPaymentAdapter _juzdanPaymentAdapter;
+        private readonly BkmExpressPaymentAdapter _bkmExpressPaymentAdapter;
 
         public CraftgateClient(string apiKey, string secretKey)
             : this(apiKey, secretKey, BaseUrl, null)
@@ -57,6 +58,7 @@ public CraftgateClient(string apiKey, string secretKey, string baseUrl, string l
             _bankAccountTrackingAdapter = new BankAccountTrackingAdapter(requestOptions);
             _merchantAdapter = new MerchantAdapter(requestOptions);
             _juzdanPaymentAdapter = new JuzdanPaymentAdapter(requestOptions);
+            _bkmExpressPaymentAdapter = new BkmExpressPaymentAdapter(requestOptions);
         }
 
         public PaymentAdapter Payment()
@@ -133,5 +135,10 @@ public JuzdanPaymentAdapter Juzdan()
         {
             return _juzdanPaymentAdapter;
         }
+
+        public BkmExpressPaymentAdapter BkmExpress()
+        {
+            return _bkmExpressPaymentAdapter;
+        }
     }
 }
\ No newline at end of file
diff --git a/Craftgate/Model/PaymentAuthenticationType.cs b/Craftgate/Model/PaymentAuthenticationType.cs
index 7b5be4b..0eeaa51 100644
--- a/Craftgate/Model/PaymentAuthenticationType.cs
+++ b/Craftgate/Model/PaymentAuthenticationType.cs
@@ -8,6 +8,7 @@ namespace Craftgate.Model
     public enum PaymentAuthenticationType
     {
         [EnumMember(Value = "THREE_DS")] THREE_DS,
-        [EnumMember(Value = "NON_THREE_DS")] NON_THREE_DS
+        [EnumMember(Value = "NON_THREE_DS")] NON_THREE_DS,
+        [EnumMember(Value = "BKM_EXPRESS")] BKM_EXPRESS
     }
 }
\ No newline at end of file
diff --git a/Craftgate/Request/CompleteBkmExpressRequest.cs b/Craftgate/Request/CompleteBkmExpressRequest.cs
new file mode 100644
index 0000000..490a43b
--- /dev/null
+++ b/Craftgate/Request/CompleteBkmExpressRequest.cs
@@ -0,0 +1,10 @@
+namespace Craftgate.Request
+{
+     public class CompleteBkmExpressRequest
+     {
+         public bool? Status { get; set; }
+         public string Message { get; set; }
+         public string TicketId { get; set; }
+
+     }
+}
\ No newline at end of file
diff --git a/Craftgate/Request/InitBkmExpressRequest.cs b/Craftgate/Request/InitBkmExpressRequest.cs
new file mode 100644
index 0000000..6794701
--- /dev/null
+++ b/Craftgate/Request/InitBkmExpressRequest.cs
@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using Craftgate.Model;
+using Craftgate.Request.Dto;
+
+namespace Craftgate.Request
+{
+     public class InitBkmExpressRequest
+     {
+         public decimal? Price { get; set; }
+         public decimal? PaidPrice { get; set; }
+         public Currency? Currency { get; set; }
+         public PaymentGroup? PaymentGroup { get; set; }
+         public string ConversationId { get; set; }
+         public PaymentPhase PaymentPhase { get; set; } = PaymentPhase.AUTH;
+         public long? BuyerMemberId { get; set; }
+         public string BankOrderId { get; set; }
+         public IList<PaymentItem> Items { get; set; }
+         public IList<int> EnabledInstallments { get; set; }
+     }
+}
\ No newline at end of file
diff --git a/Craftgate/Response/InitBkmExpressResponse.cs b/Craftgate/Response/InitBkmExpressResponse.cs
new file mode 100644
index 0000000..a9b19b5
--- /dev/null
+++ b/Craftgate/Response/InitBkmExpressResponse.cs
@@ -0,0 +1,9 @@
+namespace Craftgate.Response
+{
+    public class InitBkmExpressResponse
+    {
+        public string id { get; set; }
+        public string path { get; set; }
+        public string token { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/Samples/BkmExpressSample.cs b/Samples/BkmExpressSample.cs
new file mode 100644
index 0000000..b7c21e2
--- /dev/null
+++ b/Samples/BkmExpressSample.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using Craftgate;
+using Craftgate.Model;
+using Craftgate.Request;
+using Craftgate.Request.Dto;
+using NUnit.Framework;
+
+namespace Samples
+{
+    public class BkmExpressSample
+    {
+        private readonly CraftgateClient _craftgateClient =
+            new CraftgateClient("api-key", "secret-key", "https://sandbox-api.craftgate.io");
+
+
+        [Test]
+        public void Init_Bkm_Express_Payment()
+        {
+            var request = new InitBkmExpressRequest
+            {
+                Price = new decimal(100.0),
+                PaidPrice = new decimal(100.0),
+                ConversationId = "456d1297-908e-4bd6-a13b-4be31a6e47d5",
+                Currency = Currency.TRY,
+                PaymentGroup = PaymentGroup.LISTING_OR_SUBSCRIPTION,
+                Items = new List<PaymentItem>
+                {
+                    new PaymentItem
+                    {
+                        Name = "Item 1",
+                        ExternalId = Guid.NewGuid().ToString(),
+                        Price = new decimal(30.0)
+                    },
+                    new PaymentItem
+                    {
+                        Name = "Item 2",
+                        ExternalId = Guid.NewGuid().ToString(),
+                        Price = new decimal(50.0)
+                    },
+                    new PaymentItem
+                    {
+                        Name = "Item 3",
+                        ExternalId = Guid.NewGuid().ToString(),
+                        Price = new decimal(20.0)
+                    }
+                }
+            };
+
+            var response = _craftgateClient.BkmExpress().Init(request);
+            Assert.NotNull(response);
+        }
+
+        [Test]
+        public void Complete_Bkm_Express_Payment()
+        {
+            var request = new CompleteBkmExpressRequest()
+            {
+                Status = true,
+                Message = "İşlem Başarılı",
+                TicketId = "b9bd7b93-662f-4460-9ef3-8fc735853cf1",
+
+            };
+
+
+            var response = _craftgateClient.BkmExpress().Complete(request);
+            Assert.NotNull(response.HostReference);
+            Assert.NotNull(response);
+        }
+
+        [Test]
+        public void Retrieve_Payment()
+        {
+            var ticketId = "b9bd7b93-662f-4460-9ef3-8fc735853cf1";
+
+            var response = _craftgateClient.BkmExpress().RetrievePayment(ticketId);
+            Assert.NotNull(response);
+        }
+    }
+}
\ No newline at end of file