diff --git a/Jenkins.Net/IJenkinsContext.cs b/Jenkins.Net/IJenkinsContext.cs
index e5fb43d..ad82709 100644
--- a/Jenkins.Net/IJenkinsContext.cs
+++ b/Jenkins.Net/IJenkinsContext.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using JenkinsNET.Models;
 
 namespace JenkinsNET
@@ -30,6 +31,11 @@ public interface IJenkinsContext
         /// </summary>
         string ApiToken {get; set;}
 
+        /// <summary>
+        /// [optional] Extra HTTP headers to include on every request
+        /// </summary>
+        Dictionary<string, string> ExtraHeaders {get; set;}
+
         /// <summary>
         /// [optional] Jenkins CSRF Crumb.
         /// </summary>
diff --git a/Jenkins.Net/Internal/Commands/ArtifactGetCommand.cs b/Jenkins.Net/Internal/Commands/ArtifactGetCommand.cs
index 63aeefe..72aaec5 100644
--- a/Jenkins.Net/Internal/Commands/ArtifactGetCommand.cs
+++ b/Jenkins.Net/Internal/Commands/ArtifactGetCommand.cs
@@ -26,6 +26,7 @@ public ArtifactGetCommand(IJenkinsContext context, string jobName, string buildN
             Url = NetPath.Combine(context.BaseUrl, "job", jobName, buildNumber, "artifact", urlFilename);
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/BuildGetCommand.cs b/Jenkins.Net/Internal/Commands/BuildGetCommand.cs
index 124b156..80d0b00 100644
--- a/Jenkins.Net/Internal/Commands/BuildGetCommand.cs
+++ b/Jenkins.Net/Internal/Commands/BuildGetCommand.cs
@@ -22,6 +22,7 @@ public BuildGetCommand(IJenkinsContext context, string jobName, string buildNumb
             Url = NetPath.Combine(context.BaseUrl, "job", jobName, buildNumber, "api/xml");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/BuildOutputCommand.cs b/Jenkins.Net/Internal/Commands/BuildOutputCommand.cs
index 48a9d5c..c409766 100644
--- a/Jenkins.Net/Internal/Commands/BuildOutputCommand.cs
+++ b/Jenkins.Net/Internal/Commands/BuildOutputCommand.cs
@@ -23,6 +23,7 @@ public BuildOutputCommand(IJenkinsContext context, string jobName, string buildN
             Url = NetPath.Combine(context.BaseUrl, "job", jobName, buildNumber, "consoleText");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnRead = response => {
diff --git a/Jenkins.Net/Internal/Commands/BuildProgressiveHtmlCommand.cs b/Jenkins.Net/Internal/Commands/BuildProgressiveHtmlCommand.cs
index 1113340..6b641c2 100644
--- a/Jenkins.Net/Internal/Commands/BuildProgressiveHtmlCommand.cs
+++ b/Jenkins.Net/Internal/Commands/BuildProgressiveHtmlCommand.cs
@@ -24,6 +24,7 @@ public BuildProgressiveHtmlCommand(IJenkinsContext context, string jobName, stri
             Url = NetPath.Combine(context.BaseUrl, "job", jobName, buildNumber, "logText/progressiveHtml");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/BuildProgressiveTextCommand.cs b/Jenkins.Net/Internal/Commands/BuildProgressiveTextCommand.cs
index 0498523..219dba0 100644
--- a/Jenkins.Net/Internal/Commands/BuildProgressiveTextCommand.cs
+++ b/Jenkins.Net/Internal/Commands/BuildProgressiveTextCommand.cs
@@ -24,6 +24,7 @@ public BuildProgressiveTextCommand(IJenkinsContext context, string jobName, stri
             Url = NetPath.Combine(context.BaseUrl, "job", jobName, buildNumber, "logText/progressiveText");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/CrumbGetCommand.cs b/Jenkins.Net/Internal/Commands/CrumbGetCommand.cs
index 4b76334..165ce41 100644
--- a/Jenkins.Net/Internal/Commands/CrumbGetCommand.cs
+++ b/Jenkins.Net/Internal/Commands/CrumbGetCommand.cs
@@ -17,6 +17,7 @@ public CrumbGetCommand(IJenkinsContext context)
             Url = NetPath.Combine(context.BaseUrl, "crumbIssuer/api/xml");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
 
             OnWrite = request => {
                 request.Method = "GET";
diff --git a/Jenkins.Net/Internal/Commands/JenkinsGetCommand.cs b/Jenkins.Net/Internal/Commands/JenkinsGetCommand.cs
index 7b67f3f..a73a5a0 100644
--- a/Jenkins.Net/Internal/Commands/JenkinsGetCommand.cs
+++ b/Jenkins.Net/Internal/Commands/JenkinsGetCommand.cs
@@ -17,6 +17,7 @@ public JenkinsGetCommand(IJenkinsContext context)
 
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/JobBuildCommand.cs b/Jenkins.Net/Internal/Commands/JobBuildCommand.cs
index d922945..46007b8 100644
--- a/Jenkins.Net/Internal/Commands/JobBuildCommand.cs
+++ b/Jenkins.Net/Internal/Commands/JobBuildCommand.cs
@@ -18,6 +18,7 @@ public JobBuildCommand(IJenkinsContext context, string jobName)
             Url = NetPath.Combine(context.BaseUrl, "job", jobName, "build?delay=0sec");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/JobCreateCommand.cs b/Jenkins.Net/Internal/Commands/JobCreateCommand.cs
index e6d73ef..cb352c0 100644
--- a/Jenkins.Net/Internal/Commands/JobCreateCommand.cs
+++ b/Jenkins.Net/Internal/Commands/JobCreateCommand.cs
@@ -21,6 +21,7 @@ public JobCreateCommand(IJenkinsContext context, string jobName, JenkinsProject
 
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/JobDeleteCommand.cs b/Jenkins.Net/Internal/Commands/JobDeleteCommand.cs
index 43d47af..df17026 100644
--- a/Jenkins.Net/Internal/Commands/JobDeleteCommand.cs
+++ b/Jenkins.Net/Internal/Commands/JobDeleteCommand.cs
@@ -15,6 +15,7 @@ public JobDeleteCommand(IJenkinsContext context, string jobName)
             Url = NetPath.Combine(context.BaseUrl, "job", jobName, "doDelete");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/JobGetCommand.cs b/Jenkins.Net/Internal/Commands/JobGetCommand.cs
index 3d05a14..24fabfc 100644
--- a/Jenkins.Net/Internal/Commands/JobGetCommand.cs
+++ b/Jenkins.Net/Internal/Commands/JobGetCommand.cs
@@ -20,6 +20,7 @@ public JobGetCommand(IJenkinsContext context, string jobName)
 
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/JobGetConfigCommand.cs b/Jenkins.Net/Internal/Commands/JobGetConfigCommand.cs
index 972f62b..40f1793 100644
--- a/Jenkins.Net/Internal/Commands/JobGetConfigCommand.cs
+++ b/Jenkins.Net/Internal/Commands/JobGetConfigCommand.cs
@@ -24,6 +24,7 @@ public JobGetConfigCommand(IJenkinsContext context, string jobName)
 
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/JobUpdateConfigurationCommand.cs b/Jenkins.Net/Internal/Commands/JobUpdateConfigurationCommand.cs
index 75dad03..57b3af8 100644
--- a/Jenkins.Net/Internal/Commands/JobUpdateConfigurationCommand.cs
+++ b/Jenkins.Net/Internal/Commands/JobUpdateConfigurationCommand.cs
@@ -20,6 +20,7 @@ public JobUpdateConfigurationCommand(IJenkinsContext context, string jobName, Je
 
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/QueueGetItemCommand.cs b/Jenkins.Net/Internal/Commands/QueueGetItemCommand.cs
index f767040..56930cc 100644
--- a/Jenkins.Net/Internal/Commands/QueueGetItemCommand.cs
+++ b/Jenkins.Net/Internal/Commands/QueueGetItemCommand.cs
@@ -17,6 +17,7 @@ public QueueGetItemCommand(IJenkinsContext context, int itemNumber)
             Url = NetPath.Combine(context.BaseUrl, "queue/item", itemNumber.ToString(), "api/xml");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/Commands/QueueItemListCommand.cs b/Jenkins.Net/Internal/Commands/QueueItemListCommand.cs
index 5a0e514..c1ee368 100644
--- a/Jenkins.Net/Internal/Commands/QueueItemListCommand.cs
+++ b/Jenkins.Net/Internal/Commands/QueueItemListCommand.cs
@@ -19,6 +19,7 @@ public QueueItemListCommand(IJenkinsContext context)
             Url = NetPath.Combine(context.BaseUrl, "queue/api/xml");
             UserName = context.UserName;
             Password = context.Password;
+            ExtraHeaders = context.ExtraHeaders;
             Crumb = context.Crumb;
 
             OnWrite = request => {
diff --git a/Jenkins.Net/Internal/JenkinsHttpCommand.cs b/Jenkins.Net/Internal/JenkinsHttpCommand.cs
index cf46841..ceb2cb7 100644
--- a/Jenkins.Net/Internal/JenkinsHttpCommand.cs
+++ b/Jenkins.Net/Internal/JenkinsHttpCommand.cs
@@ -1,5 +1,6 @@
 using JenkinsNET.Models;
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Net;
 using System.Text;
@@ -19,6 +20,7 @@ internal class JenkinsHttpCommand
         public string Url {get; set;}
         public string UserName {get; set;}
         public string Password {get; set;}
+        public Dictionary<string, string> ExtraHeaders {get; set;}
         public JenkinsCrumb Crumb {get; set;}
         public Action<HttpWebRequest> OnWrite {get; set;}
         public Action<HttpWebResponse> OnRead {get; set;}
@@ -67,6 +69,10 @@ private HttpWebRequest CreateRequest()
             request.AllowAutoRedirect = true;
             request.KeepAlive = true;
 
+            if (ExtraHeaders != null)
+                foreach (var header in ExtraHeaders)
+                    request.Headers.Add(header.Key, header.Value);
+
             if (Crumb != null)
                 request.Headers.Add(Crumb.CrumbRequestField, Crumb.Crumb);
 
diff --git a/Jenkins.Net/JenkinsClient.cs b/Jenkins.Net/JenkinsClient.cs
index 9bb2328..de54b7f 100644
--- a/Jenkins.Net/JenkinsClient.cs
+++ b/Jenkins.Net/JenkinsClient.cs
@@ -2,6 +2,7 @@
 using JenkinsNET.Internal.Commands;
 using JenkinsNET.Models;
 using System;
+using System.Collections.Generic;
 using System.Threading;
 using System.Threading.Tasks;
 
@@ -28,6 +29,11 @@ public class JenkinsClient : IJenkinsContext, IJenkinsClient
         /// </summary>
         public string ApiToken {get; set;}
 
+        /// <summary>
+        /// [optional] Extra HTTP headers to include on every request
+        /// </summary>
+        public Dictionary<string, string> ExtraHeaders {get; set;}
+
         /// <summary>
         /// Gets or sets the security Crumb to use on API requests.
         /// </summary>
@@ -90,6 +96,7 @@ public JenkinsClient(IJenkinsContext context) : this(context.BaseUrl)
             this.UserName = context.UserName;
             this.ApiToken = context.ApiToken;
             this.Password = context.Password;
+            this.ExtraHeaders = context.ExtraHeaders;
             this.Crumb = context.Crumb;
         }