diff --git a/official/docs/csharp/current/addresses/create-and-verify.cs b/official/docs/csharp/current/addresses/create-and-verify.cs
index 7301de03..f4655e8e 100644
--- a/official/docs/csharp/current/addresses/create-and-verify.cs
+++ b/official/docs/csharp/current/addresses/create-and-verify.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Address.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/addresses/create.cs b/official/docs/csharp/current/addresses/create.cs
index 591daf91..0b9f7415 100644
--- a/official/docs/csharp/current/addresses/create.cs
+++ b/official/docs/csharp/current/addresses/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Address.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/addresses/list.cs b/official/docs/csharp/current/addresses/list.cs
index b9e8f653..3eebfb87 100644
--- a/official/docs/csharp/current/addresses/list.cs
+++ b/official/docs/csharp/current/addresses/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Address.All parameters = new()
             {
diff --git a/official/docs/csharp/current/addresses/retrieve.cs b/official/docs/csharp/current/addresses/retrieve.cs
index 5ffe19ea..92328800 100644
--- a/official/docs/csharp/current/addresses/retrieve.cs
+++ b/official/docs/csharp/current/addresses/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Address address = await client.Address.Retrieve("adr_...");
 
diff --git a/official/docs/csharp/current/addresses/verify-failure.cs b/official/docs/csharp/current/addresses/verify-failure.cs
index b767360d..6dde884c 100644
--- a/official/docs/csharp/current/addresses/verify-failure.cs
+++ b/official/docs/csharp/current/addresses/verify-failure.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Address.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/addresses/verify-param.cs b/official/docs/csharp/current/addresses/verify-param.cs
index 47b76917..5892c4a6 100644
--- a/official/docs/csharp/current/addresses/verify-param.cs
+++ b/official/docs/csharp/current/addresses/verify-param.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Address.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/addresses/verify-strict-param.cs b/official/docs/csharp/current/addresses/verify-strict-param.cs
index d7b4cfdf..2f57e4ec 100644
--- a/official/docs/csharp/current/addresses/verify-strict-param.cs
+++ b/official/docs/csharp/current/addresses/verify-strict-param.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Address.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/addresses/verify.cs b/official/docs/csharp/current/addresses/verify.cs
index 10aed5b8..4129690f 100644
--- a/official/docs/csharp/current/addresses/verify.cs
+++ b/official/docs/csharp/current/addresses/verify.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Address.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/api-keys/retrieve.cs b/official/docs/csharp/current/api-keys/retrieve.cs
index bf7ecc6b..59add419 100644
--- a/official/docs/csharp/current/api-keys/retrieve.cs
+++ b/official/docs/csharp/current/api-keys/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             // Retrieve all API keys including children
             List<ApiKey> apiKeys = await client.ApiKey.All();
diff --git a/official/docs/csharp/current/batches/add-shipments.cs b/official/docs/csharp/current/batches/add-shipments.cs
index 54589779..6303aed2 100644
--- a/official/docs/csharp/current/batches/add-shipments.cs
+++ b/official/docs/csharp/current/batches/add-shipments.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/batches/buy.cs b/official/docs/csharp/current/batches/buy.cs
index 91c3a4f5..c136d8f6 100644
--- a/official/docs/csharp/current/batches/buy.cs
+++ b/official/docs/csharp/current/batches/buy.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Batch batch = await client.Batch.Retrieve("batch_...");
 
diff --git a/official/docs/csharp/current/batches/create.cs b/official/docs/csharp/current/batches/create.cs
index e1bd86e8..ce049ea7 100644
--- a/official/docs/csharp/current/batches/create.cs
+++ b/official/docs/csharp/current/batches/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/batches/label.cs b/official/docs/csharp/current/batches/label.cs
index 27ee990c..8c70308a 100644
--- a/official/docs/csharp/current/batches/label.cs
+++ b/official/docs/csharp/current/batches/label.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Batch batch = await client.Batch.Retrieve("batch_...");
 
diff --git a/official/docs/csharp/current/batches/list.cs b/official/docs/csharp/current/batches/list.cs
index d0cd4bbe..61e41c33 100644
--- a/official/docs/csharp/current/batches/list.cs
+++ b/official/docs/csharp/current/batches/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Batch.All parameters = new()
             {
diff --git a/official/docs/csharp/current/batches/remove-shipments.cs b/official/docs/csharp/current/batches/remove-shipments.cs
index 49af796c..4302f07c 100644
--- a/official/docs/csharp/current/batches/remove-shipments.cs
+++ b/official/docs/csharp/current/batches/remove-shipments.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/batches/retrieve.cs b/official/docs/csharp/current/batches/retrieve.cs
index 3c2befe1..d40c0fd3 100644
--- a/official/docs/csharp/current/batches/retrieve.cs
+++ b/official/docs/csharp/current/batches/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Batch batch = await client.Batch.Retrieve("batch_...");
 
diff --git a/official/docs/csharp/current/batches/scan-forms.cs b/official/docs/csharp/current/batches/scan-forms.cs
index 5ae4bf4b..4e3a924c 100644
--- a/official/docs/csharp/current/batches/scan-forms.cs
+++ b/official/docs/csharp/current/batches/scan-forms.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Batch batch = await client.Batch.Retrieve("batch_...");
 
diff --git a/official/docs/csharp/current/billing/create-ep-credit-card.cs b/official/docs/csharp/current/billing/create-ep-credit-card.cs
index 60f6dbf5..5339a1fa 100644
--- a/official/docs/csharp/current/billing/create-ep-credit-card.cs
+++ b/official/docs/csharp/current/billing/create-ep-credit-card.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             PaymentMethod paymentMethod = await client.ReferralCustomer.AddCreditCardToUser("REFERRAL_USER_API_KEY", "0123456789101234", "01", "2025", "111", PaymentMethod.Priority.Primary);
 
diff --git a/official/docs/csharp/current/billing/delete.cs b/official/docs/csharp/current/billing/delete.cs
index 8677c114..ef061908 100644
--- a/official/docs/csharp/current/billing/delete.cs
+++ b/official/docs/csharp/current/billing/delete.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             await client.Billing.DeletePaymentMethod(PaymentMethod.Priority.Primary);
         }
diff --git a/official/docs/csharp/current/billing/fund.cs b/official/docs/csharp/current/billing/fund.cs
index ba4d1e14..5fc12d7b 100644
--- a/official/docs/csharp/current/billing/fund.cs
+++ b/official/docs/csharp/current/billing/fund.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             await client.Billing.FundWallet("2000", PaymentMethod.Priority.Primary);
         }
diff --git a/official/docs/csharp/current/billing/list.cs b/official/docs/csharp/current/billing/list.cs
index dce504a6..75e49052 100644
--- a/official/docs/csharp/current/billing/list.cs
+++ b/official/docs/csharp/current/billing/list.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             PaymentMethodsSummary paymentMethodsSummary = await client.Billing.RetrievePaymentMethodsSummary();
 
diff --git a/official/docs/csharp/current/brand/update.cs b/official/docs/csharp/current/brand/update.cs
index 0a6b0f9a..9ccc1244 100644
--- a/official/docs/csharp/current/brand/update.cs
+++ b/official/docs/csharp/current/brand/update.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             User user = await client.User.RetrieveMe();
 
diff --git a/official/docs/csharp/current/carrier-accounts/create.cs b/official/docs/csharp/current/carrier-accounts/create.cs
index 107762bf..ef20c302 100644
--- a/official/docs/csharp/current/carrier-accounts/create.cs
+++ b/official/docs/csharp/current/carrier-accounts/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.CarrierAccount.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/carrier-accounts/delete.cs b/official/docs/csharp/current/carrier-accounts/delete.cs
index bfa2d41f..099c46cd 100644
--- a/official/docs/csharp/current/carrier-accounts/delete.cs
+++ b/official/docs/csharp/current/carrier-accounts/delete.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             CarrierAccount carrierAccount = await client.CarrierAccount.Retrieve("ca_...");
 
diff --git a/official/docs/csharp/current/carrier-accounts/list.cs b/official/docs/csharp/current/carrier-accounts/list.cs
index 03959742..894e922c 100644
--- a/official/docs/csharp/current/carrier-accounts/list.cs
+++ b/official/docs/csharp/current/carrier-accounts/list.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             List<CarrierAccount> carrierAccounts = await client.CarrierAccount.All();
 
diff --git a/official/docs/csharp/current/carrier-accounts/retrieve.cs b/official/docs/csharp/current/carrier-accounts/retrieve.cs
index 004a4e83..b0ea5806 100644
--- a/official/docs/csharp/current/carrier-accounts/retrieve.cs
+++ b/official/docs/csharp/current/carrier-accounts/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             CarrierAccount carrierAccount = await client.CarrierAccount.Retrieve("ca_...");
 
diff --git a/official/docs/csharp/current/carrier-accounts/update.cs b/official/docs/csharp/current/carrier-accounts/update.cs
index 81245af7..7dda2a9a 100644
--- a/official/docs/csharp/current/carrier-accounts/update.cs
+++ b/official/docs/csharp/current/carrier-accounts/update.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             CarrierAccount carrierAccount = await client.CarrierAccount.Retrieve("ca_...");
 
diff --git a/official/docs/csharp/current/carrier-metadata/retrieve.cs b/official/docs/csharp/current/carrier-metadata/retrieve.cs
index 109231f5..4aa09cb6 100644
--- a/official/docs/csharp/current/carrier-metadata/retrieve.cs
+++ b/official/docs/csharp/current/carrier-metadata/retrieve.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             // Request all metadata for all carriers
             List<Carrier> carrierMetadata = await client.CarrierMetadata.Retrieve();
diff --git a/official/docs/csharp/current/carrier-types/list.cs b/official/docs/csharp/current/carrier-types/list.cs
index a6b610b7..d3096786 100644
--- a/official/docs/csharp/current/carrier-types/list.cs
+++ b/official/docs/csharp/current/carrier-types/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             List<CarrierType> carrierTypes = await client.CarrierType.All();
 
diff --git a/official/docs/csharp/current/child-users/create.cs b/official/docs/csharp/current/child-users/create.cs
index 89926026..0fb807ee 100644
--- a/official/docs/csharp/current/child-users/create.cs
+++ b/official/docs/csharp/current/child-users/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.User.CreateChild parameters = new()
             {
diff --git a/official/docs/csharp/current/child-users/delete.cs b/official/docs/csharp/current/child-users/delete.cs
index 6ec52e2f..049330f9 100644
--- a/official/docs/csharp/current/child-users/delete.cs
+++ b/official/docs/csharp/current/child-users/delete.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             User user = await client.User.Retrieve("user_...");
 
diff --git a/official/docs/csharp/current/child-users/list.cs b/official/docs/csharp/current/child-users/list.cs
index d198a77c..db511969 100644
--- a/official/docs/csharp/current/child-users/list.cs
+++ b/official/docs/csharp/current/child-users/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Users.AllChildren parameters = new()
             {
diff --git a/official/docs/csharp/current/customs-infos/create.cs b/official/docs/csharp/current/customs-infos/create.cs
index e687ef1c..95c0bc7d 100644
--- a/official/docs/csharp/current/customs-infos/create.cs
+++ b/official/docs/csharp/current/customs-infos/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.CustomsInfo.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/customs-infos/retrieve.cs b/official/docs/csharp/current/customs-infos/retrieve.cs
index e6b55c45..0fdf2c69 100644
--- a/official/docs/csharp/current/customs-infos/retrieve.cs
+++ b/official/docs/csharp/current/customs-infos/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             CustomsInfo customsInfo = await client.CustomsInfo.Retrieve("cstinfo_...");
 
diff --git a/official/docs/csharp/current/customs-items/create.cs b/official/docs/csharp/current/customs-items/create.cs
index 19992f76..440e87c6 100644
--- a/official/docs/csharp/current/customs-items/create.cs
+++ b/official/docs/csharp/current/customs-items/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.CustomsItems.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/customs-items/retrieve.cs b/official/docs/csharp/current/customs-items/retrieve.cs
index a7927f5c..0d0ede5e 100644
--- a/official/docs/csharp/current/customs-items/retrieve.cs
+++ b/official/docs/csharp/current/customs-items/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             CustomsItem customsItem = await client.CustomsItem.Retrieve("cstitem_...");
 
diff --git a/official/docs/csharp/current/endshipper/buy.cs b/official/docs/csharp/current/endshipper/buy.cs
index bc5d77aa..55f31e54 100644
--- a/official/docs/csharp/current/endshipper/buy.cs
+++ b/official/docs/csharp/current/endshipper/buy.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/endshipper/create.cs b/official/docs/csharp/current/endshipper/create.cs
index 31dc7fb7..90ff246b 100644
--- a/official/docs/csharp/current/endshipper/create.cs
+++ b/official/docs/csharp/current/endshipper/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.EndShipper.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/endshipper/list.cs b/official/docs/csharp/current/endshipper/list.cs
index 6679955b..9f3f7cc3 100644
--- a/official/docs/csharp/current/endshipper/list.cs
+++ b/official/docs/csharp/current/endshipper/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.EndShipper.All parameters = new()
             {
diff --git a/official/docs/csharp/current/endshipper/retrieve.cs b/official/docs/csharp/current/endshipper/retrieve.cs
index e4c7aaee..66c32b65 100644
--- a/official/docs/csharp/current/endshipper/retrieve.cs
+++ b/official/docs/csharp/current/endshipper/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             EndShipper endShipper = await client.EndShipper.Retrieve("es_...");
 
diff --git a/official/docs/csharp/current/endshipper/update.cs b/official/docs/csharp/current/endshipper/update.cs
index fc8af14c..c1541632 100644
--- a/official/docs/csharp/current/endshipper/update.cs
+++ b/official/docs/csharp/current/endshipper/update.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             EndShipper endShipper = await client.EndShipper.Retrieve("es_...");
 
diff --git a/official/docs/csharp/current/events/list.cs b/official/docs/csharp/current/events/list.cs
index 607a7c76..2bb262fc 100644
--- a/official/docs/csharp/current/events/list.cs
+++ b/official/docs/csharp/current/events/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Event.All parameters = new()
             {
diff --git a/official/docs/csharp/current/events/retrieve.cs b/official/docs/csharp/current/events/retrieve.cs
index 145ed4c2..4aa33c80 100644
--- a/official/docs/csharp/current/events/retrieve.cs
+++ b/official/docs/csharp/current/events/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Event @event = await client.Event.Retrieve("evt_...");
 
diff --git a/official/docs/csharp/current/forms/create.cs b/official/docs/csharp/current/forms/create.cs
index be2ec527..6d9735e4 100644
--- a/official/docs/csharp/current/forms/create.cs
+++ b/official/docs/csharp/current/forms/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             // Shipment has to be purchased before forms can be generated
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
diff --git a/official/docs/csharp/current/insurance/create.cs b/official/docs/csharp/current/insurance/create.cs
index 364c1b6a..60e2eeea 100644
--- a/official/docs/csharp/current/insurance/create.cs
+++ b/official/docs/csharp/current/insurance/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Insurance.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/insurance/list.cs b/official/docs/csharp/current/insurance/list.cs
index b8c56f6e..e0a9b60b 100644
--- a/official/docs/csharp/current/insurance/list.cs
+++ b/official/docs/csharp/current/insurance/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Insurance.All parameters = new()
             {
diff --git a/official/docs/csharp/current/insurance/refund.cs b/official/docs/csharp/current/insurance/refund.cs
index 430d5d1e..5a445c35 100644
--- a/official/docs/csharp/current/insurance/refund.cs
+++ b/official/docs/csharp/current/insurance/refund.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Insurance insurance = await client.Insurance.Refund("ins_...");
 
diff --git a/official/docs/csharp/current/insurance/retrieve.cs b/official/docs/csharp/current/insurance/retrieve.cs
index 31eb663f..ff9b0214 100644
--- a/official/docs/csharp/current/insurance/retrieve.cs
+++ b/official/docs/csharp/current/insurance/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Insurance insurance = await client.Insurance.Retrieve("ins_...");
 
diff --git a/official/docs/csharp/current/options/create-with-options.cs b/official/docs/csharp/current/options/create-with-options.cs
index 7e072726..ada9dba9 100644
--- a/official/docs/csharp/current/options/create-with-options.cs
+++ b/official/docs/csharp/current/options/create-with-options.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Shipment.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/orders/buy.cs b/official/docs/csharp/current/orders/buy.cs
index 3267038a..0685aeed 100644
--- a/official/docs/csharp/current/orders/buy.cs
+++ b/official/docs/csharp/current/orders/buy.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Order order = await client.Order.Retrieve("order_...");
 
diff --git a/official/docs/csharp/current/orders/create.cs b/official/docs/csharp/current/orders/create.cs
index 0fa40b7e..c06f4497 100644
--- a/official/docs/csharp/current/orders/create.cs
+++ b/official/docs/csharp/current/orders/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/orders/one-call-buy.cs b/official/docs/csharp/current/orders/one-call-buy.cs
index c52b2748..5beb5d5f 100644
--- a/official/docs/csharp/current/orders/one-call-buy.cs
+++ b/official/docs/csharp/current/orders/one-call-buy.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Order.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/orders/retrieve.cs b/official/docs/csharp/current/orders/retrieve.cs
index 74514c2f..7ea87ee6 100644
--- a/official/docs/csharp/current/orders/retrieve.cs
+++ b/official/docs/csharp/current/orders/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Order order = await client.Order.Retrieve("order_...");
 
diff --git a/official/docs/csharp/current/pagination/get-next-page.cs b/official/docs/csharp/current/pagination/get-next-page.cs
index dde4c76a..f172c1e7 100644
--- a/official/docs/csharp/current/pagination/get-next-page.cs
+++ b/official/docs/csharp/current/pagination/get-next-page.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             // Get first page of results
             Parameters.Shipment.All parameters = new()
diff --git a/official/docs/csharp/current/parcels/create.cs b/official/docs/csharp/current/parcels/create.cs
index a9331ef2..63f879d6 100644
--- a/official/docs/csharp/current/parcels/create.cs
+++ b/official/docs/csharp/current/parcels/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Parcel.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/parcels/retrieve.cs b/official/docs/csharp/current/parcels/retrieve.cs
index c6c670a3..bf45f294 100644
--- a/official/docs/csharp/current/parcels/retrieve.cs
+++ b/official/docs/csharp/current/parcels/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parcel parcel = await client.Parcel.Retrieve("prcl_...");
 
diff --git a/official/docs/csharp/current/payloads/list.cs b/official/docs/csharp/current/payloads/list.cs
index 6859017a..c3fa2361 100644
--- a/official/docs/csharp/current/payloads/list.cs
+++ b/official/docs/csharp/current/payloads/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             List<Payload> payloads = await client.Event.RetrieveAllPayloads("evt_...");
 
diff --git a/official/docs/csharp/current/payloads/retrieve.cs b/official/docs/csharp/current/payloads/retrieve.cs
index 306b5fcc..02befacf 100644
--- a/official/docs/csharp/current/payloads/retrieve.cs
+++ b/official/docs/csharp/current/payloads/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Payload payload = await client.Event.RetrievePayload("evt_...", "payload_...");
 
diff --git a/official/docs/csharp/current/pickups/buy.cs b/official/docs/csharp/current/pickups/buy.cs
index 916f306a..12b34925 100644
--- a/official/docs/csharp/current/pickups/buy.cs
+++ b/official/docs/csharp/current/pickups/buy.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Pickup pickup = await client.Pickup.Retrieve("pickup_...");
 
diff --git a/official/docs/csharp/current/pickups/cancel.cs b/official/docs/csharp/current/pickups/cancel.cs
index 97963267..b344d5e1 100644
--- a/official/docs/csharp/current/pickups/cancel.cs
+++ b/official/docs/csharp/current/pickups/cancel.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Pickup pickup = await client.Pickup.Retrieve("pickup_...");
 
diff --git a/official/docs/csharp/current/pickups/create.cs b/official/docs/csharp/current/pickups/create.cs
index d8719248..d9dfc9ba 100644
--- a/official/docs/csharp/current/pickups/create.cs
+++ b/official/docs/csharp/current/pickups/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/pickups/list.cs b/official/docs/csharp/current/pickups/list.cs
index 9eefd0c0..c7efcbc6 100644
--- a/official/docs/csharp/current/pickups/list.cs
+++ b/official/docs/csharp/current/pickups/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Dictionary<string, object> listParams = new Dictionary<string, object>()
             {
diff --git a/official/docs/csharp/current/pickups/retrieve.cs b/official/docs/csharp/current/pickups/retrieve.cs
index 7dd89eef..0078fa72 100644
--- a/official/docs/csharp/current/pickups/retrieve.cs
+++ b/official/docs/csharp/current/pickups/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Pickup pickup = await client.Pickup.Retrieve("pickup_...");
 
diff --git a/official/docs/csharp/current/rates/regenerate.cs b/official/docs/csharp/current/rates/regenerate.cs
index 96c5ea28..fec74f7e 100644
--- a/official/docs/csharp/current/rates/regenerate.cs
+++ b/official/docs/csharp/current/rates/regenerate.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/rates/retrieve-stateless.cs b/official/docs/csharp/current/rates/retrieve-stateless.cs
index 6d447e2b..de8c6b91 100644
--- a/official/docs/csharp/current/rates/retrieve-stateless.cs
+++ b/official/docs/csharp/current/rates/retrieve-stateless.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Beta.Rate.Retrieve shipmentDetails = new()
             {
diff --git a/official/docs/csharp/current/rates/retrieve.cs b/official/docs/csharp/current/rates/retrieve.cs
index 9b78a21d..85d658bb 100644
--- a/official/docs/csharp/current/rates/retrieve.cs
+++ b/official/docs/csharp/current/rates/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Rate rate = await client.Rate.Retrieve("rate...");
 
diff --git a/official/docs/csharp/current/referral-customers/add-payment-method-with-bank-account.cs b/official/docs/csharp/current/referral-customers/add-payment-method-with-bank-account.cs
index ede74100..319140d5 100644
--- a/official/docs/csharp/current/referral-customers/add-payment-method-with-bank-account.cs
+++ b/official/docs/csharp/current/referral-customers/add-payment-method-with-bank-account.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             PaymentMethod paymentMethod = await client.Beta.ReferralCustomer.AddPaymentMethod("cus_...", "ba_...", PaymentMethod.Priority.Primary);
 
diff --git a/official/docs/csharp/current/referral-customers/add-payment-method-with-credit-card.cs b/official/docs/csharp/current/referral-customers/add-payment-method-with-credit-card.cs
index d57bdb92..885643f1 100644
--- a/official/docs/csharp/current/referral-customers/add-payment-method-with-credit-card.cs
+++ b/official/docs/csharp/current/referral-customers/add-payment-method-with-credit-card.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             PaymentMethod paymentMethod = await client.Beta.ReferralCustomer.AddPaymentMethod("cus_...", "card_...", PaymentMethod.Priority.Primary);
 
diff --git a/official/docs/csharp/current/referral-customers/create.cs b/official/docs/csharp/current/referral-customers/create.cs
index 1d09b72b..6d5ac6f7 100644
--- a/official/docs/csharp/current/referral-customers/create.cs
+++ b/official/docs/csharp/current/referral-customers/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.ReferralCustomer.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/referral-customers/list.cs b/official/docs/csharp/current/referral-customers/list.cs
index 96db583f..146199fb 100644
--- a/official/docs/csharp/current/referral-customers/list.cs
+++ b/official/docs/csharp/current/referral-customers/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.ReferralCustomer.All parameters = new()
             {
diff --git a/official/docs/csharp/current/referral-customers/refund-by-amount.cs b/official/docs/csharp/current/referral-customers/refund-by-amount.cs
index 8068cf0e..db18e3ef 100644
--- a/official/docs/csharp/current/referral-customers/refund-by-amount.cs
+++ b/official/docs/csharp/current/referral-customers/refund-by-amount.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.ReferralCustomer.RefundByAmount parameters = new()
             {
diff --git a/official/docs/csharp/current/referral-customers/refund-by-payment-log.cs b/official/docs/csharp/current/referral-customers/refund-by-payment-log.cs
index 128809a0..bab9f869 100644
--- a/official/docs/csharp/current/referral-customers/refund-by-payment-log.cs
+++ b/official/docs/csharp/current/referral-customers/refund-by-payment-log.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.ReferralCustomer.RefundByPaymentLog parameters = new()
             {
diff --git a/official/docs/csharp/current/referral-customers/update.cs b/official/docs/csharp/current/referral-customers/update.cs
index 93bae5ba..0757beb9 100644
--- a/official/docs/csharp/current/referral-customers/update.cs
+++ b/official/docs/csharp/current/referral-customers/update.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             await client.ReferralCustomer.UpdateReferralEmail("user_...", "new_email@example.com");
         }
diff --git a/official/docs/csharp/current/refunds/create.cs b/official/docs/csharp/current/refunds/create.cs
index 5fa19564..061f86c1 100644
--- a/official/docs/csharp/current/refunds/create.cs
+++ b/official/docs/csharp/current/refunds/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Refund.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/refunds/list.cs b/official/docs/csharp/current/refunds/list.cs
index fc5d93b7..a417416a 100644
--- a/official/docs/csharp/current/refunds/list.cs
+++ b/official/docs/csharp/current/refunds/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Refund.All parameters = new()
             {
diff --git a/official/docs/csharp/current/refunds/retrieve.cs b/official/docs/csharp/current/refunds/retrieve.cs
index 71f2165c..dca28ffd 100644
--- a/official/docs/csharp/current/refunds/retrieve.cs
+++ b/official/docs/csharp/current/refunds/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Refund refund = await client.Refund.Retrieve("rfnd_...");
 
diff --git a/official/docs/csharp/current/reports/create.cs b/official/docs/csharp/current/reports/create.cs
index 4e06fc71..e634dbcf 100644
--- a/official/docs/csharp/current/reports/create.cs
+++ b/official/docs/csharp/current/reports/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Report.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/reports/list.cs b/official/docs/csharp/current/reports/list.cs
index 19cf3310..2c0f8180 100644
--- a/official/docs/csharp/current/reports/list.cs
+++ b/official/docs/csharp/current/reports/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Report.All parameters = new()
             {
diff --git a/official/docs/csharp/current/reports/retrieve.cs b/official/docs/csharp/current/reports/retrieve.cs
index efb10b2f..79a58d31 100644
--- a/official/docs/csharp/current/reports/retrieve.cs
+++ b/official/docs/csharp/current/reports/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Report report = await client.Report.Retrieve("plrep_...");
 
diff --git a/official/docs/csharp/current/returns/create.cs b/official/docs/csharp/current/returns/create.cs
index 72bf9142..b0a9c8fc 100644
--- a/official/docs/csharp/current/returns/create.cs
+++ b/official/docs/csharp/current/returns/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Shipment.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/scan-form/create.cs b/official/docs/csharp/current/scan-form/create.cs
index 3351aca5..38f3d850 100644
--- a/official/docs/csharp/current/scan-form/create.cs
+++ b/official/docs/csharp/current/scan-form/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/scan-form/list.cs b/official/docs/csharp/current/scan-form/list.cs
index 3a0f32b3..1ae106fe 100644
--- a/official/docs/csharp/current/scan-form/list.cs
+++ b/official/docs/csharp/current/scan-form/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.ScanForm.All parameters = new()
             {
diff --git a/official/docs/csharp/current/scan-form/retrieve.cs b/official/docs/csharp/current/scan-form/retrieve.cs
index 627ba196..1ba82777 100644
--- a/official/docs/csharp/current/scan-form/retrieve.cs
+++ b/official/docs/csharp/current/scan-form/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             ScanForm scanForm = await client.ScanForm.Retrieve("sf_...");
 
diff --git a/official/docs/csharp/current/shipments/buy.cs b/official/docs/csharp/current/shipments/buy.cs
index 0a229ab7..336261c5 100644
--- a/official/docs/csharp/current/shipments/buy.cs
+++ b/official/docs/csharp/current/shipments/buy.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/shipments/create.cs b/official/docs/csharp/current/shipments/create.cs
index 9b2d4786..66af6d1d 100644
--- a/official/docs/csharp/current/shipments/create.cs
+++ b/official/docs/csharp/current/shipments/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             // Create a shipment using all data in one API call
 
diff --git a/official/docs/csharp/current/shipments/label.cs b/official/docs/csharp/current/shipments/label.cs
index bdb415d9..f9f5505a 100644
--- a/official/docs/csharp/current/shipments/label.cs
+++ b/official/docs/csharp/current/shipments/label.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/shipments/list.cs b/official/docs/csharp/current/shipments/list.cs
index 8c1a6190..d4508239 100644
--- a/official/docs/csharp/current/shipments/list.cs
+++ b/official/docs/csharp/current/shipments/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Shipment.All parameters = new()
             {
diff --git a/official/docs/csharp/current/shipments/one-call-buy.cs b/official/docs/csharp/current/shipments/one-call-buy.cs
index 47595aab..ec3bfcea 100644
--- a/official/docs/csharp/current/shipments/one-call-buy.cs
+++ b/official/docs/csharp/current/shipments/one-call-buy.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Shipment.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/shipments/retrieve.cs b/official/docs/csharp/current/shipments/retrieve.cs
index 27de2e16..d2cec9ad 100644
--- a/official/docs/csharp/current/shipments/retrieve.cs
+++ b/official/docs/csharp/current/shipments/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/shipping-insurance/insure.cs b/official/docs/csharp/current/shipping-insurance/insure.cs
index 2d8b768f..59571e70 100644
--- a/official/docs/csharp/current/shipping-insurance/insure.cs
+++ b/official/docs/csharp/current/shipping-insurance/insure.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/shipping-refund/refund.cs b/official/docs/csharp/current/shipping-refund/refund.cs
index 8ef58c12..811f4d97 100644
--- a/official/docs/csharp/current/shipping-refund/refund.cs
+++ b/official/docs/csharp/current/shipping-refund/refund.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/smartrate/retrieve-estimated-delivery-date.cs b/official/docs/csharp/current/smartrate/retrieve-estimated-delivery-date.cs
index 0a931a76..84d68c63 100644
--- a/official/docs/csharp/current/smartrate/retrieve-estimated-delivery-date.cs
+++ b/official/docs/csharp/current/smartrate/retrieve-estimated-delivery-date.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/smartrate/retrieve-time-in-transit-statistics.cs b/official/docs/csharp/current/smartrate/retrieve-time-in-transit-statistics.cs
index e5b6941c..a62b7acb 100644
--- a/official/docs/csharp/current/smartrate/retrieve-time-in-transit-statistics.cs
+++ b/official/docs/csharp/current/smartrate/retrieve-time-in-transit-statistics.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Shipment shipment = await client.Shipment.Retrieve("shp_...");
 
diff --git a/official/docs/csharp/current/tax-identifiers/create.cs b/official/docs/csharp/current/tax-identifiers/create.cs
index 0d0893b6..f4caea69 100644
--- a/official/docs/csharp/current/tax-identifiers/create.cs
+++ b/official/docs/csharp/current/tax-identifiers/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Shipment.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/trackers/create.cs b/official/docs/csharp/current/trackers/create.cs
index 28d7ac0d..044c7ced 100644
--- a/official/docs/csharp/current/trackers/create.cs
+++ b/official/docs/csharp/current/trackers/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Tracker.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/trackers/list.cs b/official/docs/csharp/current/trackers/list.cs
index 623623c2..a794995b 100644
--- a/official/docs/csharp/current/trackers/list.cs
+++ b/official/docs/csharp/current/trackers/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Tracker.All parameters = new()
             {
diff --git a/official/docs/csharp/current/trackers/retrieve.cs b/official/docs/csharp/current/trackers/retrieve.cs
index f4b92818..8bf2cfae 100644
--- a/official/docs/csharp/current/trackers/retrieve.cs
+++ b/official/docs/csharp/current/trackers/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Tracker tracker = await client.Tracker.Retrieve("trk_...");
 
diff --git a/official/docs/csharp/current/users/retrieve.cs b/official/docs/csharp/current/users/retrieve.cs
index a3cabfd2..a444144d 100644
--- a/official/docs/csharp/current/users/retrieve.cs
+++ b/official/docs/csharp/current/users/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             // Retrieve the authenticated user
             User user = await client.User.RetrieveMe();
diff --git a/official/docs/csharp/current/users/update.cs b/official/docs/csharp/current/users/update.cs
index 51cf104b..ce12a8ba 100644
--- a/official/docs/csharp/current/users/update.cs
+++ b/official/docs/csharp/current/users/update.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             User user = await client.User.RetrieveMe();
 
diff --git a/official/docs/csharp/current/webhooks/create.cs b/official/docs/csharp/current/webhooks/create.cs
index c422a698..c4fe3570 100644
--- a/official/docs/csharp/current/webhooks/create.cs
+++ b/official/docs/csharp/current/webhooks/create.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Webhook.Create parameters = new()
             {
diff --git a/official/docs/csharp/current/webhooks/delete.cs b/official/docs/csharp/current/webhooks/delete.cs
index a4ff8945..2daa532b 100644
--- a/official/docs/csharp/current/webhooks/delete.cs
+++ b/official/docs/csharp/current/webhooks/delete.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Webhook webhook = await client.Webhook.Retrieve("hook_...");
 
diff --git a/official/docs/csharp/current/webhooks/list.cs b/official/docs/csharp/current/webhooks/list.cs
index 4803ffcb..73df4c97 100644
--- a/official/docs/csharp/current/webhooks/list.cs
+++ b/official/docs/csharp/current/webhooks/list.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Parameters.Webhook.All parameters = new()
             {
diff --git a/official/docs/csharp/current/webhooks/retrieve.cs b/official/docs/csharp/current/webhooks/retrieve.cs
index aab235b9..c29339c5 100644
--- a/official/docs/csharp/current/webhooks/retrieve.cs
+++ b/official/docs/csharp/current/webhooks/retrieve.cs
@@ -11,7 +11,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Webhook webhook = await client.Webhook.Retrieve("hook_...");
 
diff --git a/official/docs/csharp/current/webhooks/update.cs b/official/docs/csharp/current/webhooks/update.cs
index fc2a2bc1..4abe5a80 100644
--- a/official/docs/csharp/current/webhooks/update.cs
+++ b/official/docs/csharp/current/webhooks/update.cs
@@ -12,7 +12,7 @@ public class Examples
     {
         public static async Task Main()
         {
-            var client = new EasyPost.Client("EASYPOST_API_KEY");
+            var client = new EasyPost.Client(new EasyPost.ClientConfiguration("EASYPOST_API_KEY"));
 
             Webhook webhook = await client.Webhook.Retrieve("hook_...");