diff --git a/JsonRpc.Http/HttpRpcClientHandler.cs b/JsonRpc.Http/HttpRpcClientHandler.cs
index 4d77854..373f88d 100644
--- a/JsonRpc.Http/HttpRpcClientHandler.cs
+++ b/JsonRpc.Http/HttpRpcClientHandler.cs
@@ -66,6 +66,12 @@ public Encoding Encoding
         /// <value>Content-Type header value, or <c>null</c> to suppress Content-Type header.</value>
         public string ContentType { get; set; } = "application/json-rpc";
 
+        /// <summary>
+        /// Authentication token header value.
+        /// </summary>
+        /// <value>Bearer Authentication token header value.</value>
+        public string AuthToken { get; set; }
+
         // Looking for EmitContentCharset? No, StringContent will automatically append charset to the
         // end of the Content-Type of the requests.
 
@@ -95,6 +101,11 @@ protected virtual HttpRequestMessage GetHttpRequestMessage(RequestMessage reques
             };
             if (!string.IsNullOrEmpty(UserAgent)) req.Headers.UserAgent.ParseAdd(UserAgent);
             req.Headers.UserAgent.Add(new ProductInfoHeaderValue("JsonRpc.Http", "0.3"));
+            if (!string.IsNullOrEmpty(AuthToken))
+            {
+                req.Headers.Authorization = new AuthenticationHeaderValue("Bearer", AuthToken);
+            }
+
             return req;
         }