diff --git a/slack_status_cli/client.py b/slack_status_cli/client.py
new file mode 100644
index 0000000..9484c32
--- /dev/null
+++ b/slack_status_cli/client.py
@@ -0,0 +1,76 @@
+import urllib.request
+import urllib.parse
+import typing
+import logging
+import json
+
+logger = logging.getLogger(__name__)
+
+
+class SlackClient:
+    _token: str
+
+    def __init__(self, token: str):
+        self._token = token
+
+    @property
+    def headers(self):
+        return {
+            "Authorization": f"Bearer {self._token}",
+        }
+
+    def _post(self, url: str, payload):
+        request = urllib.request.Request(
+            url,
+            urllib.parse.urlencode(payload).encode(),
+            method="POST",
+            headers=self.headers,
+        )
+
+        response = urllib.request.urlopen(request)
+        response_status = response.status
+        response_data = response.read()
+
+        logger.debug("API request: %s", str(payload))
+        logger.debug("API response: %s", str(response_data))
+
+        if response_status != 200:
+            raise Exception("Failed due to an API error.")
+
+        response_data = json.loads(response_data)
+
+        if not response_data["ok"]:
+            raise Exception("Failed due to an API error.")
+
+    def update_status(
+        self,
+        status: str,
+        emoticon: typing.Optional[str] = None,
+        expiration: typing.Optional[int] = None,
+    ):
+        """
+        Sets the Slack status of the given user to <status>, optionally with <emoticon> if provided.
+        If an expiration is provided, the status is set to expire after this time.
+
+        Reference: https://api.slack.com/methods/users.profile.set
+        """
+        payload = {
+            "profile": {
+                "status_text": status,
+                "status_emoji": emoticon or "",
+                "status_expiration": expiration or 0,
+            }
+        }
+
+        self._post("https://slack.com/api/users.profile.set", payload)
+
+    def set_do_not_disturb(self, duration_minutes: int):
+        """
+        Silences notifications, potentially with the specified duration.
+
+        Reference: https://api.slack.com/methods/dnd.setSnooze
+        """
+
+        payload = {"num_minutes": duration_minutes}
+
+        self._post("https://slack.com/api/dnd.setSnooze", payload)
diff --git a/slack_status_cli/main.py b/slack_status_cli/main.py
index 42af247..d5a1daa 100644
--- a/slack_status_cli/main.py
+++ b/slack_status_cli/main.py
@@ -13,8 +13,6 @@ With preset:
 SLACK_TOKEN=XXX slack-status-cli set --preset <preset-name> --duration <duration_description>
 """
 
-import urllib.request
-import urllib.parse
 import typing
 import os
 import logging
@@ -26,6 +24,8 @@ import json
 import pathlib
 import sys
 
+import client as slack_client
+
 # Debug mode modifies the log level used for reporting. If truthy,
 # extra information is included in each run to diagnose common
 # issues.
@@ -61,75 +61,6 @@ Configuration = collections.namedtuple(
 )
 
 
-class SlackClient:
-    _token: str
-
-    def __init__(self, token: str):
-        self._token = token
-
-    @property
-    def headers(self):
-        return {
-            "Authorization": f"Bearer {self._token}",
-        }
-
-    def _post(self, url: str, payload):
-        request = urllib.request.Request(
-            url,
-            urllib.parse.urlencode(payload).encode(),
-            method="POST",
-            headers=self.headers,
-        )
-
-        response = urllib.request.urlopen(request)
-        response_status = response.status
-        response_data = response.read()
-
-        logger.debug("API request: %s", str(payload))
-        logger.debug("API response: %s", str(response_data))
-
-        if response_status != 200:
-            raise Exception("Failed due to an API error.")
-
-        response_data = json.loads(response_data)
-
-        if not response_data["ok"]:
-            raise Exception("Failed due to an API error.")
-
-    def update_status(
-        self,
-        status: str,
-        emoticon: typing.Optional[str] = None,
-        expiration: typing.Optional[int] = None,
-    ):
-        """
-        Sets the Slack status of the given user to <status>, optionally with <emoticon> if provided.
-        If an expiration is provided, the status is set to expire after this time.
-
-        Reference: https://api.slack.com/methods/users.profile.set
-        """
-        payload = {
-            "profile": {
-                "status_text": status,
-                "status_emoji": emoticon or "",
-                "status_expiration": expiration or 0,
-            }
-        }
-
-        self._post("https://slack.com/api/users.profile.set", payload)
-
-    def set_do_not_disturb(self, duration_minutes: int):
-        """
-        Silences notifications, potentially with the specified duration.
-
-        Reference: https://api.slack.com/methods/dnd.setSnooze
-        """
-
-        payload = {"num_minutes": duration_minutes}
-
-        self._post("https://slack.com/api/dnd.setSnooze", payload)
-
-
 def parse_input(known_presets: typing.List[str]) -> ParsedUserInput:
     """
     Handles command-line argument parsing and help text display.
@@ -247,7 +178,7 @@ def run():
         if not token:
             raise Exception("Slack token not provided.")
 
-        client = SlackClient(token=token)
+        client = slack_client.SlackClient(token=token)
 
         status_text = args.text
         status_icon = args.icon