diff --git a/Sources/DiscogsService/Public/Enumerations/AuthMethod.swift b/Sources/DiscogsService/Public/Enumerations/AuthMethod.swift
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+// ===----------------------------------------------------------------------===
+//
+// This source file is part of the DiscogsService open source project
+//
+// Copyright (c) 2025 Röck+Cöde VoF. and the DiscogsService project authors
+// Licensed under Apache license v2.0
+//
+// See LICENSE for license information
+// See CONTRIBUTORS for the list of DiscogsService project authors
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+// ===----------------------------------------------------------------------===
+
+/// A representation of the available authentication methods at the Discogs service.
+///
+/// The differences between these authentication methods.
+///
+/// Credentials in request | Rate limiting? | Image URLs? |Authenticated as user?
+/// --- | :---: | :---: | :---:
+/// None | 🐢 Low tier | ❌ No |❌ No
+/// Only Consumer key/secret | 🐰 High tier | ✔️ Yes | ❌ No
+/// Personal access token | 🐰 High tier | ✔️ Yes | ✔️ Yes, for token holder only 👩
+///
+/// Please refer to the [Discogs documentation](https://www.discogs.com/developers#page:authentication,header:authentication-discogs-auth-flow) for further details.
+public enum AuthMethod {
+    /// A consumer key and secret that allows access to endpoints that requires authentication.
+    case consumer(key: String, secret: String)
+    /// No authentication method defined.
+    case none
+    /// A user token that allows access to its own account information.
+    case user(token: String)
+}