diff --git a/server/mcp_server_vefaas_function/README.md b/server/mcp_server_vefaas_function/README.md
index e8961909..84e9844a 100644
--- a/server/mcp_server_vefaas_function/README.md
+++ b/server/mcp_server_vefaas_function/README.md
@@ -601,7 +601,7 @@ OAuth 2.0
 
 ### UVX
 
-请预先获取环境变量 VOLC_ACCESSKEY 和 VOLC_SECRETKEY。
+请预先获取环境变量 VOLCENGINE_ACCESS_KEY 和 VOLCENGINE_SECRET_KEY。
 
 ```json
 {
@@ -614,8 +614,8 @@ OAuth 2.0
         "mcp-server-vefaas-function"
       ],
       "env": {
-        "VOLC_ACCESSKEY": "xxx",
-        "VOLC_SECRETKEY": "xxx"
+        "VOLCENGINE_ACCESS_KEY": "xxx",
+        "VOLCENGINE_SECRET_KEY": "xxx"
       }
     }
   }
diff --git a/server/mcp_server_vefaas_function/mcp.json b/server/mcp_server_vefaas_function/mcp.json
index 257c5a1f..b735d994 100644
--- a/server/mcp_server_vefaas_function/mcp.json
+++ b/server/mcp_server_vefaas_function/mcp.json
@@ -8,8 +8,8 @@
         "mcp-server-vefaas-function"
       ],
       "env": {
-        "VOLC_ACCESSKEY": "xxx",
-        "VOLC_SECRETKEY": "xxx"
+        "VOLCENGINE_ACCESS_KEY": "xxx",
+        "VOLCENGINE_SECRET_KEY": "xxx"
       }
     }
   }
diff --git a/server/mcp_server_vefaas_function/src/mcp_server_vefaas_function/sign.py b/server/mcp_server_vefaas_function/src/mcp_server_vefaas_function/sign.py
index d2c9ec0c..d082778d 100644
--- a/server/mcp_server_vefaas_function/src/mcp_server_vefaas_function/sign.py
+++ b/server/mcp_server_vefaas_function/src/mcp_server_vefaas_function/sign.py
@@ -39,8 +39,8 @@
 ContentType = "application/x-www-form-urlencoded"
 
 # 请求的凭证，从IAM或者STS服务中获取
-AK = os.getenv("VOLC_ACCESSKEY")
-SK = os.getenv("VOLC_SECRETKEY")
+AK = os.getenv("VOLCENGINE_ACCESS_KEY")
+SK = os.getenv("VOLCENGINE_SECRET_KEY")
 # 当使用临时凭证时，需要使用到SessionToken传入Header，并计算进SignedHeader中，请自行在header参数中添加X-Security-Token头
 # SessionToken = ""
 
@@ -187,10 +187,10 @@ def get_authorization_credentials(ctx: Context = None) -> tuple[str, str, str]:
         ValueError: If authorization information is missing or invalid
     """
     # First try environment variables
-    if "VOLC_ACCESSKEY" in os.environ and "VOLC_SECRETKEY" in os.environ:
+    if "VOLCENGINE_ACCESS_KEY" in os.environ and "VOLCENGINE_SECRET_KEY" in os.environ:
         return (
-            os.environ["VOLC_ACCESSKEY"],
-            os.environ["VOLC_SECRETKEY"],
+            os.environ["VOLCENGINE_ACCESS_KEY"],
+            os.environ["VOLCENGINE_SECRET_KEY"],
             ""  # No session token for static credentials
         )
 
diff --git a/server/mcp_server_vefaas_function/src/mcp_server_vefaas_function/vefaas_server_test.py b/server/mcp_server_vefaas_function/src/mcp_server_vefaas_function/vefaas_server_test.py
index 9acb3a6d..27b01ac5 100644
--- a/server/mcp_server_vefaas_function/src/mcp_server_vefaas_function/vefaas_server_test.py
+++ b/server/mcp_server_vefaas_function/src/mcp_server_vefaas_function/vefaas_server_test.py
@@ -6,11 +6,11 @@
 class TestVeFaaSServerIntegration(unittest.TestCase):
     def setUp(self):
         # Check if credentials are available
-        self.ak = os.environ.get("VOLC_ACCESSKEY")
-        self.sk = os.environ.get("VOLC_SECRETKEY")
+        self.ak = os.environ.get("VOLCENGINE_ACCESS_KEY")
+        self.sk = os.environ.get("VOLCENGINE_SECRET_KEY")
         if not self.ak or not self.sk:
             self.assertFalse(
-                "VOLC_ACCESSKEY or VOLC_SECRETKEY environment variables not set"
+                "VOLCENGINE_ACCESS_KEY or VOLCENGINE_SECRET_KEY environment variables not set"
             )
 
     def test_does_function_exist_with_real_credentials(self):