diff --git a/.docker.env b/.docker.env
index 912c04d..9e1e065 100644
--- a/.docker.env
+++ b/.docker.env
@@ -9,6 +9,7 @@ ADMIN_EMAIL="hoplin.dev@gmail.com"
 ADMIN_PW = "admin"
 JWT_SECRET="SECRET"
 JUDGE_SERVER_ENDPOINT="a"
+JUDGE_AUTH_KEY=""
 ENV="a" # dev or production
 PORT="3000"
 
diff --git a/.env b/.env
index f6bf655..31939f7 100644
--- a/.env
+++ b/.env
@@ -13,7 +13,8 @@ DATABASE_URL="mysql://root:hoplin1234!@localhost:3306/judge?schema=public"
 ADMIN_EMAIL="hoplin.dev@gmail.com"
 ADMIN_PW = "admin"
 JWT_SECRET="SECRET"
-JUDGE_SERVER_ENDPOINT="a"
+JUDGE_SERVER_ENDPOINT=""
+JUDGE_AUTH_KEY="bb94a17ca2mshd975e936bb4ea0cp1887aejsn53199d6ceb32"
 ENV="a" # dev or production
 PORT="3000"
 
diff --git a/.test.env b/.test.env
index b70fe58..f7f32f8 100644
--- a/.test.env
+++ b/.test.env
@@ -12,7 +12,7 @@ ADMIN_PW = "admin"
 JWT_SECRET="SECRET"
 
 JUDGE_SERVER_ENDPOINT="test"
-
+JUDGE_AUTH_KEY=""
 ENV=""
 PORT=""
 
diff --git a/libs/judge0/src/judge0.service.ts b/libs/judge0/src/judge0.service.ts
index 7c6e958..be71b53 100644
--- a/libs/judge0/src/judge0.service.ts
+++ b/libs/judge0/src/judge0.service.ts
@@ -8,11 +8,16 @@ export class Judge0Service {
   private instance: AxiosInstance;
   constructor() {
     const judge0Endpoint = process.env.JUDGE_SERVER_ENDPOINT;
+    const judge0AuthKey = process.env.JUDGE_AUTH_KEY;
     if (!judge0Endpoint) {
       throw new Error('Judge Server Endpoint not found');
     }
     this.instance = axios.create({
-      baseURL: judge0Endpoint,
+      baseURL: `https://${judge0Endpoint}`,
+      headers: {
+        'X-RapidAPI-Key': judge0AuthKey ?? '',
+        'X-RapidAPI-Host': judge0Endpoint,
+      },
     });
   }