diff --git a/class-client.php b/class-client.php
index 123a328..6975922 100644
--- a/class-client.php
+++ b/class-client.php
@@ -41,6 +41,20 @@ public function asset_platforms() {
 		return new AssetPlatforms();
 	}
 
+	/**
+	 * Get an instance of the Categories class.
+	 *
+	 * @return Coins
+	 */
+	public function categories() {
+
+		if ( ! class_exists( '\Cointokio\CoinGecko\Categories' ) ) {
+			require_once dirname( __FILE__ ) . '/classes/class-categories.php';
+		}
+
+		return new Categories();
+	}
+
 	/**
 	 * Get an instance of the Coins class.
 	 *