diff --git a/docs/source/Exceptions.rst b/docs/source/Exceptions.rst
index c33a122b..a57f633b 100644
--- a/docs/source/Exceptions.rst
+++ b/docs/source/Exceptions.rst
@@ -6,13 +6,21 @@ Exceptions
 ==============================================================
 AuthError
 ==============================================================
-.. autoclass:: polygon.websocket.__init__.AuthError
+.. autoclass:: polygon.exceptions.AuthError
+    :members:
+    :undoc-members:  
+
+==============================================================
+BadResponse
+==============================================================
+.. autoclass:: polygon.exceptions.BadResponse
     :members:
     :undoc-members:  
 
 ==============================================================
 NoResultsError
 ==============================================================
-.. autoclass:: polygon.rest.base.NoResultsError
+.. autoclass:: polygon.exceptions.NoResultsError
     :members:
-    :undoc-members:  
\ No newline at end of file
+    :undoc-members:  
+
diff --git a/polygon/__init__.py b/polygon/__init__.py
index bd1c56d4..da6c5136 100644
--- a/polygon/__init__.py
+++ b/polygon/__init__.py
@@ -1,5 +1,6 @@
 from .rest import RESTClient
-from .rest.base import NoResultsError, version
-from .websocket import WebSocketClient, AuthError
+from .rest.base import version
+from .websocket import WebSocketClient
+from .exceptions import *
 
 __version__ = version
diff --git a/polygon/exceptions.py b/polygon/exceptions.py
new file mode 100644
index 00000000..7246108c
--- /dev/null
+++ b/polygon/exceptions.py
@@ -0,0 +1,22 @@
+class AuthError(Exception):
+    """
+    Empty or invalid API key
+    """
+
+    pass
+
+
+class BadResponse(Exception):
+    """
+    Non-200 response from API
+    """
+
+    pass
+
+
+class NoResultsError(Exception):
+    """
+    Missing results key
+    """
+
+    pass
diff --git a/polygon/rest/base.py b/polygon/rest/base.py
index fc300f19..8afbd330 100644
--- a/polygon/rest/base.py
+++ b/polygon/rest/base.py
@@ -8,6 +8,7 @@
 import pkg_resources  # part of setuptools
 from ..logging import get_logger
 import logging
+from ..exceptions import AuthError, BadResponse, NoResultsError
 
 logger = get_logger("RESTClient")
 version = "unknown"
@@ -17,10 +18,6 @@
     pass
 
 
-class NoResultsError(Exception):
-    pass
-
-
 class BaseClient:
     def __init__(
         self,
@@ -33,7 +30,7 @@ def __init__(
         verbose: bool,
     ):
         if api_key is None:
-            raise Exception(
+            raise AuthError(
                 f"Must specify env var POLYGON_API_KEY or pass api_key in constructor"
             )
         self.API_KEY = api_key
@@ -45,7 +42,7 @@ def __init__(
             num_pools=num_pools,
             headers={
                 "Authorization": "Bearer " + self.API_KEY,
-                "User-Agent": "Python client " + version,
+                "User-Agent": f"Polygon.io PythonClient/{version}",
             },
             ca_certs=certifi.where(),
             cert_reqs="CERT_REQUIRED",
@@ -78,7 +75,7 @@ def _get(
         )
 
         if resp.status != 200:
-            raise Exception(resp.data.decode("utf-8"))
+            raise BadResponse(resp.data.decode("utf-8"))
 
         if raw:
             return resp
diff --git a/polygon/websocket/__init__.py b/polygon/websocket/__init__.py
index 017a9773..b2eab462 100644
--- a/polygon/websocket/__init__.py
+++ b/polygon/websocket/__init__.py
@@ -11,15 +11,12 @@
 from websockets.exceptions import ConnectionClosedOK, ConnectionClosedError
 from ..logging import get_logger
 import logging
+from ..exceptions import AuthError
 
 env_key = "POLYGON_API_KEY"
 logger = get_logger("WebSocketClient")
 
 
-class AuthError(Exception):
-    pass
-
-
 class WebSocketClient:
     def __init__(
         self,
@@ -45,7 +42,7 @@ def __init__(
         :return: A client.
         """
         if api_key is None:
-            raise Exception(
+            raise AuthError(
                 f"Must specify env var {env_key} or pass api_key in constructor"
             )
         self.api_key = api_key