diff --git a/packages/api/src/api/helix/eventSub/HelixEventSubSubscription.ts b/packages/api/src/api/helix/eventSub/HelixEventSubSubscription.ts
index cfba28e30..d5c54afef 100644
--- a/packages/api/src/api/helix/eventSub/HelixEventSubSubscription.ts
+++ b/packages/api/src/api/helix/eventSub/HelixEventSubSubscription.ts
@@ -31,6 +31,7 @@ export interface HelixEventSubSubscriptionData {
 	id: string;
 	status: HelixEventSubSubscriptionStatus;
 	type: string;
+	cost: number;
 	version: string;
 	condition: Record<string, unknown>;
 	created_at: string;
@@ -71,6 +72,13 @@ export class HelixEventSubSubscription extends DataObject<HelixEventSubSubscript
 		return this[rawDataSymbol].type;
 	}
 
+	/**
+	 * The cost of the subscription.
+	 */
+	get cost(): number {
+		return this[rawDataSymbol].cost;
+	}
+
 	/**
 	 * The condition of the subscription.
 	 */