diff --git a/api/src/Kurs.Platform.Application/CustomEndpoints/CustomEndpointAppService.cs b/api/src/Kurs.Platform.Application/CustomEndpoints/CustomEndpointAppService.cs
index 208cd881..3e52ec43 100644
--- a/api/src/Kurs.Platform.Application/CustomEndpoints/CustomEndpointAppService.cs
+++ b/api/src/Kurs.Platform.Application/CustomEndpoints/CustomEndpointAppService.cs
@@ -59,11 +59,15 @@ public class CustomEndpointAppService : PlatformAppService
 
         try
         {
-            // Request.Path = /api/app/public-api/yxcdfn/8
-            var path = httpContextAccessor.HttpContext.Request.Path.ToString()
-                            .Replace("/api/app/public-api", "")
+            // Request.Path = /api/app/custom-endpoint/yxcdfn/8
+            var rawPath = httpContextAccessor.HttpContext.Request.Path.ToString();
+            var decodedPath = Uri.UnescapeDataString(rawPath); // URL decode işlemi
+
+            var path = decodedPath
+                            .Replace("/api/app/custom-endpoint", "", StringComparison.OrdinalIgnoreCase)
                             .EnsureStartsWith('/')
                             .EnsureEndsWith('/');
+
             Logger.LogInformation("Custom Endpoint çağrısı. Kullanıcı:{user} Path:[{method}]{path}", CurrentUser.UserName, "GET", path);
             var api = await repo.FirstOrDefaultAsync(a => path.StartsWith(a.Url) && a.Method == method);
             if (api is null)
@@ -216,7 +220,7 @@ username=system%40sozsoft.com
 &scope=offline_access%20Platform
 
 Custom Endpoint Seed:
-select * from PLanguage WHERE IsEnabled = @IsEnabled AND CultureName = @CultureName
+SELECT * FROM PLanguage WHERE IsEnabled = @IsEnabled AND CultureName = @CultureName
 INSERT INTO [dbo].[Orders]
            ([CustomerName]
            ,[ProductName]
diff --git a/api/src/Kurs.Platform.DbMigrator/Seeds/PlatformDataSeeder.cs b/api/src/Kurs.Platform.DbMigrator/Seeds/PlatformDataSeeder.cs
index d425fb2b..ec2286fb 100644
--- a/api/src/Kurs.Platform.DbMigrator/Seeds/PlatformDataSeeder.cs
+++ b/api/src/Kurs.Platform.DbMigrator/Seeds/PlatformDataSeeder.cs
@@ -55,7 +55,8 @@ public class PlatformDataSeeder : IDataSeedContributor, ITransientDependency
     private readonly IRepository<BlogPost, Guid> _blogPostsRepository;
     private readonly IRepository<ForumCategory, Guid> _forumCategoryRepository;
     private readonly IRepository<AiBot, Guid> _aiBotRepository;
-    private readonly IRepository<Route, Guid> _RouteRepository;
+    private readonly IRepository<Route, Guid> _routeRepository;
+    private readonly IRepository<CustomEndpoint, Guid> _customEndpointRepository;
 
     public PlatformDataSeeder(
         IRepository<Language, Guid> languages,
@@ -86,7 +87,8 @@ public class PlatformDataSeeder : IDataSeedContributor, ITransientDependency
         IRepository<BlogPost, Guid> blogPostsRepository,
         IRepository<ForumCategory, Guid> forumCategoryRepository,
         IRepository<AiBot, Guid> aiBotRepository,
-        IRepository<Route, Guid> RouteRepository
+        IRepository<Route, Guid> RouteRepository,
+        IRepository<CustomEndpoint, Guid> CustomEndpointRepository
         )
     {
         _languages = languages;
@@ -117,7 +119,8 @@ public class PlatformDataSeeder : IDataSeedContributor, ITransientDependency
         _blogPostsRepository = blogPostsRepository;
         _forumCategoryRepository = forumCategoryRepository;
         _aiBotRepository = aiBotRepository;
-        _RouteRepository = RouteRepository;
+        _routeRepository = RouteRepository;
+        _customEndpointRepository = CustomEndpointRepository;
     }
 
     private static IConfigurationRoot BuildConfiguration()
@@ -639,11 +642,11 @@ public class PlatformDataSeeder : IDataSeedContributor, ITransientDependency
 
         foreach (var item in items.Routes)
         {
-            var exists = await _RouteRepository.AnyAsync(x => x.Key == item.Key);
+            var exists = await _routeRepository.AnyAsync(x => x.Key == item.Key);
 
             if (!exists)
             {
-                await _RouteRepository.InsertAsync(new Route(
+                await _routeRepository.InsertAsync(new Route(
                     item.Key,
                     item.Path,
                     item.ComponentPath,
@@ -652,5 +655,24 @@ public class PlatformDataSeeder : IDataSeedContributor, ITransientDependency
                 ));
             }
         }
+
+        foreach (var item in items.CustomEndpoints)
+        {
+            var exists = await _customEndpointRepository.AnyAsync(x => x.Name == item.Name);
+
+            if (!exists)
+            {
+                await _customEndpointRepository.InsertAsync(new CustomEndpoint(
+                    item.Name,
+                    item.Description,
+                    item.Url,
+                    item.Method,
+                    item.DataSourceCode,
+                    item.Sql,
+                    JsonSerializer.Serialize(item.ParametersJson),
+                    JsonSerializer.Serialize(item.PermissionsJson)
+                ));
+            }
+        }
     }
 }
diff --git a/api/src/Kurs.Platform.DbMigrator/Seeds/SeederData.json b/api/src/Kurs.Platform.DbMigrator/Seeds/SeederData.json
index a38f2f31..25c0b720 100644
--- a/api/src/Kurs.Platform.DbMigrator/Seeds/SeederData.json
+++ b/api/src/Kurs.Platform.DbMigrator/Seeds/SeederData.json
@@ -21698,5 +21698,34 @@
             "routeType": "protected",
             "authority": []
         }
+    ],
+    "CustomEndpoints": [
+        {
+            "Name": "Langugage",
+            "Description": "https://localhost:44344/api/app/custom-endpoint/dil/en",
+            "Url": "/dil/",
+            "Method": "GET",
+            "DataSourceCode": "Default",
+            "Sql": "SELECT * FROM PLanguage WHERE IsEnabled = @IsEnabled AND CultureName = @CultureName",
+            "ParametersJson": [
+                {
+                    "Type": "P",
+                    "Name": "CultureName",
+                    "DefaultValue": "ar",
+                    "Path": "/dil/:CultureName/"
+                },
+                {
+                    "Type": "S",
+                    "Name": "IsEnabled",
+                    "DefaultValue": "true"
+                }
+            ],
+            "PermissionsJson": [
+                {
+                    "ResourceType": "User",
+                    "ResourceId": "system@sozsoft.com"
+                }
+            ]
+        }
     ]
 }
\ No newline at end of file
diff --git a/api/src/Kurs.Platform.DbMigrator/Seeds/SeederDto.cs b/api/src/Kurs.Platform.DbMigrator/Seeds/SeederDto.cs
index 3716ba4e..ed709e23 100644
--- a/api/src/Kurs.Platform.DbMigrator/Seeds/SeederDto.cs
+++ b/api/src/Kurs.Platform.DbMigrator/Seeds/SeederDto.cs
@@ -38,6 +38,7 @@ public class SeederDto
     public List<ForumCategorySeedDto> ForumCategories { get; set; }
     public List<AiBotSeedDto> AiBots { get; set; }
     public List<RouteSeedDto> Routes { get; set; }
+    public List<CustomEndpointSeedDto> CustomEndpoints { get; set; }
 }
 
 public class ChartsSeedDto
@@ -254,3 +255,16 @@ public class RouteSeedDto
     public string RouteType { get; set; }
     public string[] Authority { get; set; }
 }
+
+public class CustomEndpointSeedDto
+{
+    public string Name { get; set; }
+    public string Description { get; set; }
+    public string Url { get; set; }
+    public string Method { get; set; }
+    public string DataSourceCode { get; set; }
+    public string Sql { get; set; }
+    public List<CustomEndpointParameter> ParametersJson { get; set; }
+    public List<CustomEndpointPermission> PermissionsJson { get; set; }
+}
+
diff --git a/api/src/Kurs.Platform.Domain/Entities/CustomEndpoint.cs b/api/src/Kurs.Platform.Domain/Entities/CustomEndpoint.cs
index a5fd5dd3..78c7a83a 100644
--- a/api/src/Kurs.Platform.Domain/Entities/CustomEndpoint.cs
+++ b/api/src/Kurs.Platform.Domain/Entities/CustomEndpoint.cs
@@ -55,6 +55,18 @@ public class CustomEndpoint : FullAuditedEntity<Guid>, IMultiTenant
             PermissionsJson = JsonSerializer.Serialize(value);
         }
     }
+
+    public CustomEndpoint(string name, string description, string url, string method, string dataSourceCode, string sql, string parametersJson, string permissionsJson)
+    {
+        Name = name;
+        Description = description;
+        Url = url;
+        Method = method;
+        DataSourceCode = dataSourceCode;
+        Sql = sql;
+        ParametersJson = parametersJson;
+        PermissionsJson = permissionsJson;
+    }
 }
 
 public class CustomEndpointParameter