diff --git a/src/Vite.AspNetCore.Abstractions/IViteManifest.cs b/src/Vite.AspNetCore.Abstractions/IViteManifest.cs
index f8beb76..01f9d5b 100644
--- a/src/Vite.AspNetCore.Abstractions/IViteManifest.cs
+++ b/src/Vite.AspNetCore.Abstractions/IViteManifest.cs
@@ -15,4 +15,17 @@ public interface IViteManifest : IEnumerable<IViteChunk>
 	/// <param name="key"></param>
 	/// <returns>The chunk if it exists, otherwise <see langword="null"/>.</returns>
 	IViteChunk? this[string key] { get; }
-}
\ No newline at end of file
+
+	/// <summary>
+	/// Gets an enumerable collection that contains the chunk keys in the manifest.
+	/// </summary>
+	/// <returns>An enumerable collection that contains the chunk keys in the manifest.</returns>
+	IEnumerable<string> Keys { get; }
+
+	/// <summary>
+	/// Determines whether the manifest contains a chunk with the specified key entry.
+	/// </summary>
+	/// <param name="key">The eky entry to locate.</param>
+	/// <returns>true if the manifest contains a chunk with the specified key entry; otherwise, false.</returns>
+	bool ContainsKey(string key);
+}
diff --git a/src/Vite.AspNetCore/Services/ViteManifest.cs b/src/Vite.AspNetCore/Services/ViteManifest.cs
index 5f2b202..8814957 100644
--- a/src/Vite.AspNetCore/Services/ViteManifest.cs
+++ b/src/Vite.AspNetCore/Services/ViteManifest.cs
@@ -139,6 +139,27 @@ public IViteChunk? this[string key]
 		}
 	}
 
+	/// <inheritdoc/>
+	IEnumerator<IViteChunk> IEnumerable<IViteChunk>.GetEnumerator()
+	{
+		return this._chunks.Values.GetEnumerator();
+	}
+
+	/// <inheritdoc/>
+	IEnumerator IEnumerable.GetEnumerator()
+	{
+		return this._chunks.Values.GetEnumerator();
+	}
+
+	/// <inheritdoc/>
+	IEnumerable<string> IViteManifest.Keys => this._chunks.Keys;
+
+	/// <inheritdoc/>
+	bool IViteManifest.ContainsKey(string key)
+	{
+		return this._chunks.ContainsKey(key);
+	}
+
 	/// <summary>
 	/// Combines the specified URI and paths.
 	/// </summary>
@@ -154,16 +175,4 @@ private static string CombineUri(string uri, string path)
 
 		return uri.EndsWith('/') ? uri + path : uri + "/" + path;
 	}
-
-	/// <inheritdoc/>
-	IEnumerator<IViteChunk> IEnumerable<IViteChunk>.GetEnumerator()
-	{
-		return this._chunks.Values.GetEnumerator();
-	}
-
-	/// <inheritdoc/>
-	IEnumerator IEnumerable.GetEnumerator()
-	{
-		return this._chunks.Values.GetEnumerator();
-	}
 }