diff --git a/Xero.NetStandard.OAuth2/Client/Configuration.cs b/Xero.NetStandard.OAuth2/Client/Configuration.cs
index f0122de6..98b7df8c 100644
--- a/Xero.NetStandard.OAuth2/Client/Configuration.cs
+++ b/Xero.NetStandard.OAuth2/Client/Configuration.cs
@@ -30,7 +30,7 @@ public class Configuration : IReadableConfiguration
         /// Version of the package.
         /// </summary>
         /// <value>Version of the package.</value>
-        public const string Version = "3.18.0";
+        public const string Version = "3.18.1";
 
         /// <summary>
         /// Identifier for ISO 8601 DateTime Format
@@ -99,7 +99,7 @@ public class Configuration : IReadableConfiguration
         [System.Diagnostics.CodeAnalysis.SuppressMessage("ReSharper", "VirtualMemberCallInConstructor")]
         public Configuration()
         {
-            UserAgent = "xero-netstandard-3.18.0";
+            UserAgent = "xero-netstandard-3.18.1";
             BasePath = "https://api.xero.com/api.xro/2.0";
             DefaultHeader = new ConcurrentDictionary<string, string>();
             ApiKey = new ConcurrentDictionary<string, string>();
@@ -332,7 +332,7 @@ public static String ToDebugReport()
             String report = "C# SDK (Xero.NetStandard.OAuth2) Debug Report:\n";
             report += "    OS: " + System.Runtime.InteropServices.RuntimeInformation.OSDescription + "\n";
             report += "    Version of the API: 2.13.4\n";
-            report += "    SDK Package Version: 3.18.0\n";
+            report += "    SDK Package Version: 3.18.1\n";
 
             return report;
         }
diff --git a/Xero.NetStandard.OAuth2/Xero.NetStandard.OAuth2.csproj b/Xero.NetStandard.OAuth2/Xero.NetStandard.OAuth2.csproj
index d426f556..163be4a6 100644
--- a/Xero.NetStandard.OAuth2/Xero.NetStandard.OAuth2.csproj
+++ b/Xero.NetStandard.OAuth2/Xero.NetStandard.OAuth2.csproj
@@ -16,7 +16,7 @@
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
     <RootNamespace>Xero.NetStandard.OAuth2</RootNamespace>
-    <Version>3.18.0</Version>
+    <Version>3.18.1</Version>
     <DocumentationFile>bin\$(Configuration)\$(TargetFramework)\Xero.NetStandard.OAuth2.xml</DocumentationFile>
     <PackageLicenseUrl>https://github.com/XeroAPI/Xero-NetStandard/</PackageLicenseUrl>
     <PackageIconUrl>https://en.gravatar.com/userimage/180557955/74b3a957d886bc921b0d1455beed9dab.png</PackageIconUrl>
diff --git a/Xero.NetStandard.OAuth2Client/src/Client/IXeroClient.cs b/Xero.NetStandard.OAuth2Client/src/Client/IXeroClient.cs
index 44eb4f92..1fc8c57f 100644
--- a/Xero.NetStandard.OAuth2Client/src/Client/IXeroClient.cs
+++ b/Xero.NetStandard.OAuth2Client/src/Client/IXeroClient.cs
@@ -18,6 +18,7 @@ public interface IXeroClient
         Task<IXeroToken> RequestAccessTokenAsync(string code);
         Task<IXeroToken> RequestAccessTokenPkceAsync(string code, string codeVerifier);
         Task<IXeroToken> RefreshAccessTokenAsync(IXeroToken xeroToken);
+        Task<IXeroToken> RequestClientCredentialsTokenAsync();
         Task<IXeroToken> GetCurrentValidTokenAsync(IXeroToken xeroToken);
         Task<List<Tenant>> GetConnectionsAsync(IXeroToken xeroToken);
         Task DeleteConnectionAsync(IXeroToken xeroToken, Tenant xeroTenant);
diff --git a/docs/accounting/index.html b/docs/accounting/index.html
index c9b7f8d5..b393dd63 100644
--- a/docs/accounting/index.html
+++ b/docs/accounting/index.html
@@ -5937,7 +5937,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="Accounting"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="Accounting"><strong>VSN: </strong>3.18.0</li>
+              <li class="nav-header" data-group="Accounting"><strong>VSN: </strong>3.18.1</li>
               <li class="nav-header" data-group="Accounting"><a href="#api-Accounting">Methods</a></li>
               <li data-group="Accounting" data-name="createAccount" class="">
                 <a href="#api-Accounting-createAccount">createAccount</a>
diff --git a/docs/bankfeeds/index.html b/docs/bankfeeds/index.html
index a4cb985a..0046be87 100644
--- a/docs/bankfeeds/index.html
+++ b/docs/bankfeeds/index.html
@@ -1267,7 +1267,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="BankFeeds"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="BankFeeds"><strong>VSN: </strong>3.18.0</li>
+              <li class="nav-header" data-group="BankFeeds"><strong>VSN: </strong>3.18.1</li>
               <li class="nav-header" data-group="BankFeeds"><a href="#api-BankFeeds">Methods</a></li>
               <li data-group="BankFeeds" data-name="createFeedConnections" class="">
                 <a href="#api-BankFeeds-createFeedConnections">createFeedConnections</a>
diff --git a/docs/files/index.html b/docs/files/index.html
index ef217b9e..daf3020a 100644
--- a/docs/files/index.html
+++ b/docs/files/index.html
@@ -1154,7 +1154,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="Files"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="Files"><strong>VSN: </strong>3.18.0</li>
+              <li class="nav-header" data-group="Files"><strong>VSN: </strong>3.18.1</li>
               <li class="nav-header" data-group="Files"><a href="#api-Files">Methods</a></li>
               <li data-group="Files" data-name="createFileAssociation" class="">
                 <a href="#api-Files-createFileAssociation">createFileAssociation</a>
diff --git a/docs/payroll-au/index.html b/docs/payroll-au/index.html
index eceae3bc..836cfc66 100644
--- a/docs/payroll-au/index.html
+++ b/docs/payroll-au/index.html
@@ -3238,7 +3238,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="PayrollAu"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="PayrollAu"><strong>VSN: </strong>3.18.0</li>
+              <li class="nav-header" data-group="PayrollAu"><strong>VSN: </strong>3.18.1</li>
               <li class="nav-header" data-group="PayrollAu"><a href="#api-PayrollAu">Methods</a></li>
               <li data-group="PayrollAu" data-name="createEmployee" class="">
                 <a href="#api-PayrollAu-createEmployee">createEmployee</a>
diff --git a/docs/payroll-nz/index.html b/docs/payroll-nz/index.html
index c7a86900..df94ab04 100644
--- a/docs/payroll-nz/index.html
+++ b/docs/payroll-nz/index.html
@@ -3837,7 +3837,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="PayrollNz"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="PayrollNz"><strong>VSN: </strong>3.18.0</li>
+              <li class="nav-header" data-group="PayrollNz"><strong>VSN: </strong>3.18.1</li>
               <li class="nav-header" data-group="PayrollNz"><a href="#api-PayrollNz">Methods</a></li>
               <li data-group="PayrollNz" data-name="approveTimesheet" class="">
                 <a href="#api-PayrollNz-approveTimesheet">approveTimesheet</a>
diff --git a/docs/payroll-uk/index.html b/docs/payroll-uk/index.html
index 40eef54d..f1503b85 100644
--- a/docs/payroll-uk/index.html
+++ b/docs/payroll-uk/index.html
@@ -3505,7 +3505,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="PayrollUk"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="PayrollUk"><strong>VSN: </strong>3.18.0</li>
+              <li class="nav-header" data-group="PayrollUk"><strong>VSN: </strong>3.18.1</li>
               <li class="nav-header" data-group="PayrollUk"><a href="#api-PayrollUk">Methods</a></li>
               <li data-group="PayrollUk" data-name="approveTimesheet" class="">
                 <a href="#api-PayrollUk-approveTimesheet">approveTimesheet</a>
diff --git a/docs/projects/index.html b/docs/projects/index.html
index 866ed74c..686d66c7 100644
--- a/docs/projects/index.html
+++ b/docs/projects/index.html
@@ -1467,7 +1467,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="Project"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="Project"><strong>VSN: </strong>3.18.0</li>
+              <li class="nav-header" data-group="Project"><strong>VSN: </strong>3.18.1</li>
               <li class="nav-header" data-group="Project"><a href="#api-Project">Methods</a></li>
               <li data-group="Project" data-name="createProject" class="">
                 <a href="#api-Project-createProject">createProject</a>