diff --git a/Penumbra/Api/IPenumbraApi.cs b/Penumbra/Api/IPenumbraApi.cs
index 9714b497..37265ce9 100644
--- a/Penumbra/Api/IPenumbraApi.cs
+++ b/Penumbra/Api/IPenumbraApi.cs
@@ -1,9 +1,14 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.Design;
 using Dalamud.Configuration;
 using Dalamud.Game.ClientState.Objects.Types;
 using Lumina.Data;
+using OtterGui.Classes;
+using Penumbra.GameData.ByteString;
 using Penumbra.GameData.Enums;
+using Penumbra.Meta.Manipulations;
+using Penumbra.Mods;
 
 namespace Penumbra.Api;
 
@@ -16,6 +21,22 @@ public interface IPenumbraApiBase
 public delegate void ChangedItemHover( object? item );
 public delegate void ChangedItemClick( MouseButton button, object? item );
 
+public enum PenumbraApiEc
+{
+    Okay               = 0,
+    NothingChanged     = 1,
+    CollectionMissing  = 2,
+    ModMissing         = 3,
+    OptionGroupMissing = 4,
+    SettingMissing     = 5,
+
+    CharacterCollectionExists = 6,
+    LowerPriority             = 7,
+    InvalidGamePath           = 8,
+    FileMissing               = 9,
+    InvalidManipulation       = 10,
+}
+
 public interface IPenumbraApi : IPenumbraApiBase
 {
     // Obtain the currently set mod directory from the configuration.
@@ -77,4 +98,64 @@ public interface IPenumbraApi : IPenumbraApiBase
 
     // Obtain a list of all installed mods. The first string is their directory name, the second string is their mod name.
     public IList< (string, string) > GetModList();
+
+
+    // ############## Mod Settings #################
+
+    // Obtain the potential settings of a mod specified by its directory name first or mod name second.
+    // Returns null if the mod could not be found.
+    public Dictionary< string, (string[], SelectType) >? GetAvailableModSettings( string modDirectory, string modName );
+
+    // Obtain the enabled state, the priority, the settings of a mod specified by its directory name first or mod name second,
+    // and whether these settings are inherited, or null if the collection does not set them at all.
+    // If allowInheritance is false, only the collection itself will be checked.
+    public (PenumbraApiEc, (bool, int, Dictionary< string, string[] >, bool)?) GetCurrentModSettings( string collectionName,
+        string modDirectory, string modName, bool allowInheritance );
+
+    // Try to set the inheritance state in the given collection of a mod specified by its directory name first or mod name second.
+    // Returns Okay, NothingChanged, CollectionMissing or ModMissing.
+    public PenumbraApiEc TryInheritMod( string collectionName, string modDirectory, string modName, bool inherit );
+
+    // Try to set the enabled state in the given collection of a mod specified by its directory name first or mod name second. Also removes inheritance.
+    // Returns Okay, NothingChanged, CollectionMissing or ModMissing.
+    public PenumbraApiEc TrySetMod( string collectionName, string modDirectory, string modName, bool enabled );
+
+    // Try to set the priority in the given collection of a mod specified by its directory name first or mod name second. Also removes inheritance.
+    // Returns Okay, NothingChanged, CollectionMissing or ModMissing.
+    public PenumbraApiEc TrySetModPriority( string collectionName, string modDirectory, string modName, int priority );
+
+    // Try to set a specific option group in the given collection of a mod specified by its directory name first or mod name second. Also removes inheritance.
+    // If the group is a Single Selection group, options should be a single string, otherwise the array of enabled options.
+    // Returns Okay, NothingChanged, CollectionMissing or ModMissing, OptionGroupMissing or SettingMissing.
+    // If any setting can not be found, it will not change anything.
+    public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName, string option );
+
+    public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName,
+        string[] options );
+
+
+    // Create a temporary collection without actual settings but with a cache.
+    // If character is non-zero and either no character collection for this character exists or forceOverwriteCharacter is true,
+    // associate this collection to a specific character.
+    // Can return Okay, CharacterCollectionExists or NothingChanged.
+    public PenumbraApiEc CreateTemporaryCollection( string collectionName, string? character, bool forceOverwriteCharacter );
+
+    // Remove a temporary collection if it exists.
+    // Can return Okay or NothingChanged.
+    public PenumbraApiEc RemoveTemporaryCollection( string collectionName );
+
+
+    // Set or remove a specific file redirection or meta manipulation under the name of Tag and with a given priority
+    // for a given collection, which may be temporary.
+    // Can return Okay, CollectionMissing, InvalidPath, FileMissing, LowerPriority, or NothingChanged.
+    public PenumbraApiEc SetFileRedirection( string tag, string collectionName, string gamePath, string fullPath, int priority );
+
+    // Can return Okay, CollectionMissing, InvalidManipulation, LowerPriority, or NothingChanged.
+    public PenumbraApiEc SetMetaManipulation( string tag, string collectionName, string manipulationBase64, int priority );
+
+    // Can return Okay, CollectionMissing, InvalidPath, or NothingChanged.
+    public PenumbraApiEc RemoveFileRedirection( string tag, string collectionName, string gamePath );
+
+    // Can return Okay, CollectionMissing, InvalidManipulation, or NothingChanged.
+    public PenumbraApiEc RemoveMetaManipulation( string tag, string collectionName, string manipulationBase64 );
 }
\ No newline at end of file
diff --git a/Penumbra/Api/PenumbraApi.cs b/Penumbra/Api/PenumbraApi.cs
index 082e9642..a81ab204 100644
--- a/Penumbra/Api/PenumbraApi.cs
+++ b/Penumbra/Api/PenumbraApi.cs
@@ -11,6 +11,7 @@ using Newtonsoft.Json;
 using Penumbra.Collections;
 using Penumbra.GameData.ByteString;
 using Penumbra.GameData.Enums;
+using Penumbra.Mods;
 
 namespace Penumbra.Api;
 
@@ -208,4 +209,44 @@ public class PenumbraApi : IDisposable, IPenumbraApi
         CheckInitialized();
         return Penumbra.ModManager.Select( m => ( m.ModPath.Name, m.Name.Text ) ).ToArray();
     }
+
+    public Dictionary< string, (string[], SelectType) >? GetAvailableModSettings( string modDirectory, string modName )
+        => throw new NotImplementedException();
+
+    public (PenumbraApiEc, (bool, int, Dictionary< string, string[] >, bool)?) GetCurrentModSettings( string collectionName, string modDirectory, string modName,
+        bool allowInheritance )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc TryInheritMod( string collectionName, string modDirectory, string modName, bool inherit )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc TrySetMod( string collectionName, string modDirectory, string modName, bool enabled )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc TrySetModPriority( string collectionName, string modDirectory, string modName, int priority )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName, string option )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc TrySetModSetting( string collectionName, string modDirectory, string modName, string optionGroupName, string[] options )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc CreateTemporaryCollection( string collectionName, string? character, bool forceOverwriteCharacter )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc RemoveTemporaryCollection( string collectionName )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc SetFileRedirection( string tag, string collectionName, string gamePath, string fullPath, int priority )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc SetMetaManipulation( string tag, string collectionName, string manipulationBase64, int priority )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc RemoveFileRedirection( string tag, string collectionName, string gamePath )
+        => throw new NotImplementedException();
+
+    public PenumbraApiEc RemoveMetaManipulation( string tag, string collectionName, string manipulationBase64 )
+        => throw new NotImplementedException();
 }
\ No newline at end of file