diff --git a/API/Controllers/Requests/PatchLibraryRefreshRecord.cs b/API/Controllers/Requests/PatchLibraryRefreshRecord.cs
new file mode 100644
index 0000000..d1fe149
--- /dev/null
+++ b/API/Controllers/Requests/PatchLibraryRefreshRecord.cs
@@ -0,0 +1,22 @@
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using API.Workers;
+
+namespace API.Controllers.Requests;
+
+public record PatchLibraryRefreshRecord
+{
+    /// <summary>
+    /// When to refresh the Library
+    /// </summary>
+    [Required]
+    [Description("When to refresh the Library")]
+    public required LibraryRefreshSetting Setting { get; init; }
+    
+    /// <summary>
+    /// When <see cref="LibraryRefreshSetting.WhileDownloading"/> is selected, update the time between refreshes
+    /// </summary>
+    [Required]
+    [Description("When WhileDownloadingis selected, update the time between refreshes")]
+    public required int? RefreshLibraryWhileDownloadingEveryMinutes { get; init; }
+}
\ No newline at end of file
diff --git a/API/Controllers/SettingsController.cs b/API/Controllers/SettingsController.cs
index c7c9d05..fce6d47 100644
--- a/API/Controllers/SettingsController.cs
+++ b/API/Controllers/SettingsController.cs
@@ -1,4 +1,5 @@
-using API.MangaDownloadClients;
+using API.Controllers.Requests;
+using API.MangaDownloadClients;
 using Asp.Versioning;
 using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.AspNetCore.Mvc;
@@ -290,4 +291,19 @@ public class SettingsController() : Controller
         Tranga.Settings.SetDownloadLanguage(Language);
         return TypedResults.Ok();
     }
+    
+
+    /// <summary>
+    /// Sets the time when Libraries are refreshed
+    /// </summary>
+    /// <response code="200"></response>
+    [HttpPatch("LibraryRefresh")]
+    [ProducesResponseType(Status200OK)]
+    public Ok SetLibraryRefresh([FromBody]PatchLibraryRefreshRecord requestData)
+    {
+        Tranga.Settings.SetLibraryRefreshSetting(requestData.Setting);
+        if(requestData.RefreshLibraryWhileDownloadingEveryMinutes is { } value)
+            Tranga.Settings.SetRefreshLibraryWhileDownloadingEveryMinutes(value);
+        return TypedResults.Ok();
+    }
 }
\ No newline at end of file
diff --git a/API/Schema/LibraryContext/LibraryConnectors/LibraryConnector.cs b/API/Schema/LibraryContext/LibraryConnectors/LibraryConnector.cs
index f25e551..f332bfa 100644
--- a/API/Schema/LibraryContext/LibraryConnectors/LibraryConnector.cs
+++ b/API/Schema/LibraryContext/LibraryConnectors/LibraryConnector.cs
@@ -2,6 +2,8 @@
 using System.ComponentModel.DataAnnotations.Schema;
 using log4net;
 using Microsoft.EntityFrameworkCore;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
 
 namespace API.Schema.LibraryContext.LibraryConnectors;
 
@@ -40,8 +42,16 @@ public abstract class LibraryConnector : Identifiable
     internal abstract Task<bool> Test(CancellationToken ct);
 }
 
+[JsonConverter(typeof(StringEnumConverter))]
 public enum LibraryType : byte
 {
+    /// <summary>
+    /// <seealso cref="Komga"/>
+    /// </summary>
     Komga = 0,
+    
+    /// <summary>
+    /// <seealso cref="Kavita"/>
+    /// </summary>
     Kavita = 1
 }
\ No newline at end of file
diff --git a/API/Schema/MangaContext/Manga.cs b/API/Schema/MangaContext/Manga.cs
index 8a694de..753e569 100644
--- a/API/Schema/MangaContext/Manga.cs
+++ b/API/Schema/MangaContext/Manga.cs
@@ -1,13 +1,10 @@
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
 using System.Runtime.InteropServices;
-using System.Text;
 using API.Workers;
 using Microsoft.EntityFrameworkCore;
-using SixLabors.ImageSharp;
-using SixLabors.ImageSharp.Formats.Jpeg;
-using SixLabors.ImageSharp.Processing;
-using SixLabors.ImageSharp.Processing.Processors.Transforms;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
 using static System.IO.UnixFileMode;
 
 namespace API.Schema.MangaContext;
@@ -138,6 +135,7 @@ public class Manga : Identifiable
     public override string ToString() => $"{base.ToString()} {Name}";
 }
 
+[JsonConverter(typeof(StringEnumConverter))]
 public enum MangaReleaseStatus : byte
 {
     Continuing = 0,
diff --git a/API/Schema/NotificationsContext/Notification.cs b/API/Schema/NotificationsContext/Notification.cs
index 0ea5a75..ae4e84e 100644
--- a/API/Schema/NotificationsContext/Notification.cs
+++ b/API/Schema/NotificationsContext/Notification.cs
@@ -1,5 +1,7 @@
 using System.ComponentModel.DataAnnotations;
 using Microsoft.EntityFrameworkCore;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
 
 namespace API.Schema.NotificationsContext;
 
@@ -48,6 +50,7 @@ public class Notification : Identifiable
     public override string ToString() => $"{base.ToString()} {Urgency} {Title} {Message}";
 }
 
+[JsonConverter(typeof(StringEnumConverter))]
 public enum NotificationUrgency : byte
 {
     Low = 1,
diff --git a/API/TrangaSettings.cs b/API/TrangaSettings.cs
index 81656f1..7b205e4 100644
--- a/API/TrangaSettings.cs
+++ b/API/TrangaSettings.cs
@@ -2,6 +2,7 @@
 using API.MangaDownloadClients;
 using API.Workers;
 using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
 
 namespace API;
 
@@ -63,12 +64,12 @@ public struct TrangaSettings()
     {
         if (!File.Exists(SettingsFilePath))
             new TrangaSettings().Save();
-        return JsonConvert.DeserializeObject<TrangaSettings>(File.ReadAllText(SettingsFilePath));
+        return JsonConvert.DeserializeObject<TrangaSettings>(File.ReadAllText(SettingsFilePath), new StringEnumConverter());
     }
 
     public void Save()
     {
-        File.WriteAllText(SettingsFilePath, JsonConvert.SerializeObject(this, Formatting.Indented));
+        File.WriteAllText(SettingsFilePath, JsonConvert.SerializeObject(this, Formatting.Indented, new StringEnumConverter()));
     }
 
     public void SetUserAgent(string value)
diff --git a/API/Workers/BaseWorker.cs b/API/Workers/BaseWorker.cs
index 58a2d5b..1208e84 100644
--- a/API/Workers/BaseWorker.cs
+++ b/API/Workers/BaseWorker.cs
@@ -1,5 +1,7 @@
 using API.Schema;
 using log4net;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
 
 namespace API.Workers;
 
@@ -116,6 +118,7 @@ public abstract class BaseWorker : Identifiable
     }
 }
 
+[JsonConverter(typeof(StringEnumConverter))]
 public enum WorkerExecutionState
 {
     Failed = 0,
diff --git a/API/Workers/RefreshLibrariesWorker.cs b/API/Workers/RefreshLibrariesWorker.cs
index 1e67bc9..0167afb 100644
--- a/API/Workers/RefreshLibrariesWorker.cs
+++ b/API/Workers/RefreshLibrariesWorker.cs
@@ -1,6 +1,8 @@
 using API.Schema.LibraryContext;
 using API.Schema.LibraryContext.LibraryConnectors;
 using Microsoft.EntityFrameworkCore;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
 
 namespace API.Workers;
 
@@ -20,10 +22,23 @@ public class RefreshLibrariesWorker(IEnumerable<BaseWorker>? dependsOn = null) :
     }
 }
 
+[JsonConverter(typeof(StringEnumConverter))]
 public enum LibraryRefreshSetting : byte
 {
+    /// <summary>
+    /// Refresh Libraries after all Manga are downloaded
+    /// </summary>
     AfterAllFinished = 0,
+    /// <summary>
+    /// Refresh Libraries after a Manga is downloaded
+    /// </summary>
     AfterMangaFinished = 1,
+    /// <summary>
+    /// Refresh Libraries after every download
+    /// </summary>
     AfterEveryChapter = 2,
+    /// <summary>
+    /// Refresh Libraries while downloading chapters, every x minutes
+    /// </summary>
     WhileDownloading = 3
 }
\ No newline at end of file