diff --git a/packages/vjudge/src/model.ts b/packages/vjudge/src/model.ts
index 4f45aeea4..e2b9cb064 100644
--- a/packages/vjudge/src/model.ts
+++ b/packages/vjudge/src/model.ts
@@ -162,6 +162,10 @@ class VJudgeService extends Service {
     }
 }
 
+export { BasicFetcher } from './fetch';
+export { VERDICT } from './verdict';
+export * from './interface';
+
 Context.service('vjudge', VJudgeService);
 export const name = 'vjudge';
 export async function apply(ctx: Context) {