diff --git a/Sources/Public/Errors/AmiiboServiceError.swift b/Sources/Public/Errors/AmiiboServiceError.swift
index 1481674..5e26afc 100644
--- a/Sources/Public/Errors/AmiiboServiceError.swift
+++ b/Sources/Public/Errors/AmiiboServiceError.swift
@@ -20,7 +20,7 @@ public enum AmiiboServiceError: Error {
     case notAvailable
     /// A response cannot be found.
     case notFound
-    /// An undocumented/unsupported error.
+    /// An undocumented/unsupported status code error.
     case undocumented(_ statusCode: Int)
     /// An unknown error.
     case unknown
diff --git a/Sources/Public/Models/Amiibo.swift b/Sources/Public/Models/Amiibo.swift
index a91d5af..eef921a 100644
--- a/Sources/Public/Models/Amiibo.swift
+++ b/Sources/Public/Models/Amiibo.swift
@@ -12,23 +12,45 @@
 
 import Foundation
 
+/// A model that represents an amiibo item.
 public struct Amiibo: Sendable {
     
     // MARK: Properties
     
+    /// A game character.
     public let gameCharacter: String
+    
+    /// A game series.
     public let gameSeries: String
+
+    /// The first 8 hexadecimal characters of an identifier.
     public let head: String
+    
+    /// An image link.
     public let image: String
+
+    /// An amiibo name.
     public let name: String
+
+    /// A game platform type, if any.
     public let platform: Platform?
+    
+    /// A release date.
     public let release: Release
+
+    /// An amiibo series.
     public let series: String
+    
+    /// The last 8 hexadecimal characters of an identifier.
     public let tail: String
+    
+    /// An amiibo type.
     public let type: String
     
-    // MARK: Initialisers
-
+    // MARK: Initializers
+    
+    /// Initializes this model from a given payload.
+    /// - Parameter payload: A payload that contains the values for the model.
     init(_ payload: Components.Schemas.Amiibo) {
         self.gameCharacter = payload.character
         self.gameSeries = payload.gameSeries
@@ -48,10 +70,12 @@ public struct Amiibo: Sendable {
     
     // MARK: Computed
     
+    /// An identifier.
     public var identifier: String {
         head + tail
     }
     
+    /// A URL related to an image link, if any.
     public var imageURL: URL? {
         .init(string: image)
     }
diff --git a/Sources/Public/Models/Amiibo/Amiibo+Game.swift b/Sources/Public/Models/Amiibo/Amiibo+Game.swift
index fe95824..f4e3be9 100644
--- a/Sources/Public/Models/Amiibo/Amiibo+Game.swift
+++ b/Sources/Public/Models/Amiibo/Amiibo+Game.swift
@@ -11,16 +11,24 @@
 //===----------------------------------------------------------------------===
 
 extension Amiibo {
+    /// A model that represents a game related to an amiibo item.
     public struct Game: Sendable {
         
         // MARK: Properties
         
+        /// A list of identifiers.
         public let identifiers: [String]
+        
+        /// A name.
         public let name: String
+        
+        /// A list of amiibo usages, if any.
         public let usages: [Usage]?
         
-        // MARK: Initialisers
-        
+        // MARK: Initializers
+
+        /// Initializes this model from a given payload.
+        /// - Parameter payload: A payload that contains the values for the model.
         init(_ payload: Components.Schemas.AmiiboGame) {
             self.identifiers = payload.gameID
             self.name = payload.gameName
diff --git a/Sources/Public/Models/Amiibo/Amiibo+Platform.swift b/Sources/Public/Models/Amiibo/Amiibo+Platform.swift
index 283cf06..116798f 100644
--- a/Sources/Public/Models/Amiibo/Amiibo+Platform.swift
+++ b/Sources/Public/Models/Amiibo/Amiibo+Platform.swift
@@ -11,16 +11,30 @@
 //===----------------------------------------------------------------------===
 
 extension Amiibo {
+    /// A model that represents a collection of `WiiU`, `3DS`, and `Switch` games related to an amiibo item.
     public struct Platform: Sendable {
         
         // MARK: Properties
         
+        /// A list of `Switch` games related to an amiibo item.
         public let `switch`: [Game]
+
+        /// A list of `3DS` games related to an amiibo item.
         public let threeDS: [Game]
+        
+        /// A list of `WiiU` games related to an amiibo item.
         public let wiiU: [Game]
         
         // MARK: Initialisers
         
+        /// Initializes this model.
+        ///
+        /// > important: In case no data is provided, then an instance of this model is not created.
+        ///
+        /// - Parameters:
+        ///   - `switch`: A list of `Switch` games related to an amiibo item, if any.
+        ///   - threeDS: A list of `3DS` games related to an amiibo item, if any.
+        ///   - wiiU: A list of `WiiU` games related to an amiibo item, if any.
         init?(
             _ `switch`: [Components.Schemas.AmiiboGame]?,
             _ threeDS: [Components.Schemas.AmiiboGame]?,
diff --git a/Sources/Public/Models/Amiibo/Amiibo+Release.swift b/Sources/Public/Models/Amiibo/Amiibo+Release.swift
index 6357fe0..6c2c302 100644
--- a/Sources/Public/Models/Amiibo/Amiibo+Release.swift
+++ b/Sources/Public/Models/Amiibo/Amiibo+Release.swift
@@ -13,17 +13,27 @@
 import Foundation
 
 extension Amiibo {
+    /// A model that represents a collection of release dates related to an amiibo item.
     public struct Release: Sendable {
         
         // MARK: Properties
         
+        /// A release date for North America, if any.
         public let america: Date?
+
+        /// A release date for Australia, if any.
         public let australia: Date?
+
+        /// A release date for Europe, if any.
         public let europe: Date?
+
+        /// A release date for Japan, if any.
         public let japan: Date?
         
-        // MARK: Initialisers
-        
+        // MARK: Initializers
+
+        /// Initializes this model from a given payload.
+        /// - Parameter payload: A payload that contains the values for the model.
         init(_ payload: Components.Schemas.AmiiboRelease) {
             self.america = payload.na
             self.australia = payload.au
diff --git a/Sources/Public/Models/Amiibo/Amiibo+Usage.swift b/Sources/Public/Models/Amiibo/Amiibo+Usage.swift
index abfd898..68bda05 100644
--- a/Sources/Public/Models/Amiibo/Amiibo+Usage.swift
+++ b/Sources/Public/Models/Amiibo/Amiibo+Usage.swift
@@ -11,15 +11,21 @@
 //===----------------------------------------------------------------------===
 
 extension Amiibo {
+    /// A model that represents the usage of an amiibo item within a certain game.
     public struct Usage: Sendable {
         
         // MARK: Properties
         
+        /// An explanation of how to use an amiibo item.
         public let explanation: String
+        
+        /// A flag that indicates whether an amiibo item can save game data in it.
         public let isWriteable: Bool
         
-        // MARK: Initialisers
-        
+        // MARK: Initializers
+
+        /// Initializes this model from a given payload.
+        /// - Parameter payload: A payload that contains the values for the model.
         init(_ payload: Components.Schemas.AmiiboUsage) {
             self.explanation = payload.Usage
             self.isWriteable = payload.write