diff --git a/python/sglang/backend/runtime_endpoint.py b/python/sglang/backend/runtime_endpoint.py
index bf5a58197..5c39a61b1 100644
--- a/python/sglang/backend/runtime_endpoint.py
+++ b/python/sglang/backend/runtime_endpoint.py
@@ -12,15 +12,16 @@ from sglang.utils import encode_image_base64, find_printable_text, http_request
 
 
 class RuntimeEndpoint(BaseBackend):
-    def __init__(self, base_url, auth_token=None):
+    def __init__(self, base_url, auth_token=None, verify=None):
         super().__init__()
         self.support_concate_and_append = True
 
         self.base_url = base_url
         self.auth_token = auth_token
+        self.verify = verify
 
         res = http_request(
-            self.base_url + "/get_model_info", auth_token=self.auth_token
+            self.base_url + "/get_model_info", auth_token=self.auth_token, verify=self.verify
         )
         assert res.status_code == 200
         self.model_info = res.json()
@@ -40,6 +41,7 @@ class RuntimeEndpoint(BaseBackend):
             self.base_url + "/generate",
             json={"text": prefix_str, "sampling_params": {"max_new_tokens": 0}},
             auth_token=self.auth_token,
+            verify=self.verify
         )
         assert res.status_code == 200
 
@@ -48,6 +50,7 @@ class RuntimeEndpoint(BaseBackend):
             self.base_url + "/generate",
             json={"text": s.text_, "sampling_params": {"max_new_tokens": 0}},
             auth_token=self.auth_token,
+            verify=self.verify
         )
         assert res.status_code == 200
 
@@ -55,7 +58,7 @@ class RuntimeEndpoint(BaseBackend):
         data = {"text": s.text_, "sampling_params": {"max_new_tokens": 0}}
         self._add_images(s, data)
         res = http_request(
-            self.base_url + "/generate", json=data, auth_token=self.auth_token
+            self.base_url + "/generate", json=data, auth_token=self.auth_token, verify=self.verify
         )
         assert res.status_code == 200
 
@@ -87,7 +90,7 @@ class RuntimeEndpoint(BaseBackend):
         self._add_images(s, data)
 
         res = http_request(
-            self.base_url + "/generate", json=data, auth_token=self.auth_token
+            self.base_url + "/generate", json=data, auth_token=self.auth_token, verify=self.verify
         )
         obj = res.json()
         comp = obj["text"]
@@ -126,6 +129,7 @@ class RuntimeEndpoint(BaseBackend):
             json=data,
             stream=True,
             auth_token=self.auth_token,
+            verify=self.verify
         )
         pos = 0
 
@@ -157,7 +161,7 @@ class RuntimeEndpoint(BaseBackend):
         data = {"text": s.text_, "sampling_params": {"max_new_tokens": 0}}
         self._add_images(s, data)
         res = http_request(
-            self.base_url + "/generate", json=data, auth_token=self.auth_token
+            self.base_url + "/generate", json=data, auth_token=self.auth_token, verify=self.verify
         )
         assert res.status_code == 200
         prompt_len = res.json()["meta_info"]["prompt_tokens"]
@@ -171,7 +175,7 @@ class RuntimeEndpoint(BaseBackend):
         }
         self._add_images(s, data)
         res = http_request(
-            self.base_url + "/generate", json=data, auth_token=self.auth_token
+            self.base_url + "/generate", json=data, auth_token=self.auth_token, verify=self.verify
         )
         assert res.status_code == 200
         obj = res.json()
@@ -188,6 +192,7 @@ class RuntimeEndpoint(BaseBackend):
             self.base_url + "/concate_and_append_request",
             json={"src_rids": src_rids, "dst_rid": dst_rid},
             auth_token=self.auth_token,
+            verify=self.verify
         )
         assert res.status_code == 200
 
diff --git a/python/sglang/utils.py b/python/sglang/utils.py
index 3c55797fc..4bcb0fb37 100644
--- a/python/sglang/utils.py
+++ b/python/sglang/utils.py
@@ -88,16 +88,16 @@ class HttpResponse:
         return self.resp.status
 
 
-def http_request(url, json=None, stream=False, auth_token=None):
+def http_request(url, json=None, stream=False, auth_token=None, verify=None):
     """A faster version of requests.post with low-level urllib API."""
     if stream:
         if auth_token is None:
-            return requests.post(url, json=json, stream=True)
+            return requests.post(url, json=json, stream=True, verify=verify)
         headers = {
             "Content-Type": "application/json",
             "Authentication": f"Bearer {auth_token}",
         }
-        return requests.post(url, json=json, stream=True, headers=headers)
+        return requests.post(url, json=json, stream=True, headers=headers, verify=verify)
     else:
         req = urllib.request.Request(url)
         req.add_header("Content-Type", "application/json; charset=utf-8")
@@ -107,7 +107,7 @@ def http_request(url, json=None, stream=False, auth_token=None):
             data = None
         else:
             data = bytes(dumps(json), encoding="utf-8")
-        resp = urllib.request.urlopen(req, data=data)
+        resp = urllib.request.urlopen(req, data=data, cafile=verify)
         return HttpResponse(resp)