diff --git a/docker/api/client.py b/docker/api/client.py
index 394ceb1f56..3d9eebc234 100644
--- a/docker/api/client.py
+++ b/docker/api/client.py
@@ -7,7 +7,7 @@
 import requests.adapters
 import requests.exceptions
 
-from .. import auth
+from .. import auth, context
 from ..constants import (
     DEFAULT_MAX_POOL_SIZE,
     DEFAULT_NUM_POOLS,
@@ -124,6 +124,12 @@ def __init__(self, base_url=None, version=None,
                 'If using TLS, the base_url argument must be provided.'
             )
 
+        if base_url is None:
+            current_ctx = context.ContextAPI.get_current_context()
+            if current_ctx is not None:
+                base_url = current_ctx.Host
+                tls = current_ctx.TLSConfig
+
         self.base_url = base_url
         self.timeout = timeout
         self.headers['User-Agent'] = user_agent