diff --git a/WorkFlow.API/Attributes/ApiKeyAuthAttribute.cs b/WorkFlow.API/Attributes/ApiKeyAuthAttribute.cs
index fc7f7ac..f9a0e64 100644
--- a/WorkFlow.API/Attributes/ApiKeyAuthAttribute.cs
+++ b/WorkFlow.API/Attributes/ApiKeyAuthAttribute.cs
@@ -3,9 +3,9 @@ using WorkFlow.API.Filters;
 
 namespace WorkFlow.API.Attributes
 {
-    public class ApiKeyAuthAttribute : ServiceFilterAttribute
+    public class APIKeyAuthAttribute : ServiceFilterAttribute
     {
-        public ApiKeyAuthAttribute()
+        public APIKeyAuthAttribute()
             : base(typeof(ApiKeyAuthFilter))
         {
         }
diff --git a/WorkFlow.API/Extensions/DIExtensions.cs b/WorkFlow.API/Extensions/DIExtensions.cs
new file mode 100644
index 0000000..24b7dd5
--- /dev/null
+++ b/WorkFlow.API/Extensions/DIExtensions.cs
@@ -0,0 +1,10 @@
+using WorkFlow.API.Filters;
+
+namespace WorkFlow.API.Extensions
+{
+    public static class DIExtensions
+    {
+        public static IServiceCollection AddAPIKeyAuth(this IServiceCollection services, Func<string, bool> isValidKey, string apiKeyHeaderName = "X-API-Key")
+            => services.AddSingleton<APIKeyAuthFilter>(provider => new(isValidKey: isValidKey, apiKeyHeaderName: apiKeyHeaderName));
+    }
+}
\ No newline at end of file
diff --git a/WorkFlow.API/Filters/ApiKeyAuthFilter.cs b/WorkFlow.API/Filters/ApiKeyAuthFilter.cs
index 052b391..25dda53 100644
--- a/WorkFlow.API/Filters/ApiKeyAuthFilter.cs
+++ b/WorkFlow.API/Filters/ApiKeyAuthFilter.cs
@@ -3,7 +3,7 @@ using Microsoft.AspNetCore.Mvc;
 
 namespace WorkFlow.API.Filters
 {
-    public class ApiKeyAuthFilter(Func<string, bool> isValidKey, string apiKeyHeaderName = "X-API-Key") : IAuthorizationFilter
+    public class APIKeyAuthFilter(Func<string, bool> isValidKey, string apiKeyHeaderName = "X-API-Key") : IAuthorizationFilter
     {
         public void OnAuthorization(AuthorizationFilterContext context)
         {
diff --git a/WorkFlow.API/Program.cs b/WorkFlow.API/Program.cs
index adcadf5..6031d68 100644
--- a/WorkFlow.API/Program.cs
+++ b/WorkFlow.API/Program.cs
@@ -10,6 +10,8 @@ using Microsoft.IdentityModel.Tokens;
 using WorkFlow.API.Models;
 using NLog;
 using NLog.Web;
+using WorkFlow.API.Extensions;
+using Microsoft.Extensions.Configuration;
 
 var logger = LogManager.Setup().LoadConfigurationFromAppSettings().GetCurrentClassLogger();
 logger.Info("Logging initialized.");
@@ -34,6 +36,8 @@ try
     {
         Claims = user.ToClaimList().ToDictionary(claim => claim.Type, claim => claim.Value as object)
     });
+    if (config.GetValue<string>("API-Key") is string apiKey)
+        builder.Services.AddApiKeyAuth(key => key == apiKey);
 
     builder.Services.AddControllers();