diff --git a/ip_listener/__init__.py b/ip_listener/__init__.py
index e69de29..13bb1c6 100644
--- a/ip_listener/__init__.py
+++ b/ip_listener/__init__.py
@@ -0,0 +1,7 @@
+from pathlib import Path
+
+from dotenv import load_dotenv
+
+env_path = Path("..") / ".env"
+
+load_dotenv(dotenv_path=env_path)
diff --git a/ip_listener/cli.py b/ip_listener/cli.py
index 08bddd9..8fe6ffb 100644
--- a/ip_listener/cli.py
+++ b/ip_listener/cli.py
@@ -4,6 +4,8 @@ from ip_listener.main import detect
 
 
 @click.command()
-@click.argument()
-def run():
-    detect()
+@click.argument("domains", envvar="DOMAIN", nargs=-1)
+@click.argument("token", envvar="TOKEN")
+@click.option("--read-only", envvar="READ_ONLY", default=False)
+def run(domains, token):
+    detect(domains, token)
diff --git a/poetry.lock b/poetry.lock
index 0128bdd..2b43d23 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -84,6 +84,17 @@ category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
+[[package]]
+name = "python-dotenv"
+version = "0.15.0"
+description = "Add .env support to your django/flask apps in development and deployments"
+category = "main"
+optional = false
+python-versions = "*"
+
+[package.extras]
+cli = ["click (>=5.0)"]
+
 [[package]]
 name = "regex"
 version = "2020.11.13"
@@ -119,7 +130,7 @@ python-versions = "*"
 [metadata]
 lock-version = "1.0"
 python-versions = "^3.7"
-content-hash = "7bf49667b7bd270cfd8e9773ac7d6d5cbfbbc55b60b8b2b569eb6bea6a288349"
+content-hash = "94aba70614582f8f382aa70da21bde6f0b851c650646027f17cb04012b2082bd"
 
 [metadata.files]
 appdirs = [
@@ -152,6 +163,10 @@ pyflakes = [
     {file = "pyflakes-2.2.0-py2.py3-none-any.whl", hash = "sha256:0d94e0e05a19e57a99444b6ddcf9a6eb2e5c68d3ca1e98e90707af8152c90a92"},
     {file = "pyflakes-2.2.0.tar.gz", hash = "sha256:35b2d75ee967ea93b55750aa9edbbf72813e06a66ba54438df2cfac9e3c27fc8"},
 ]
+python-dotenv = [
+    {file = "python-dotenv-0.15.0.tar.gz", hash = "sha256:587825ed60b1711daea4832cf37524dfd404325b7db5e25ebe88c495c9f807a0"},
+    {file = "python_dotenv-0.15.0-py2.py3-none-any.whl", hash = "sha256:0c8d1b80d1a1e91717ea7d526178e3882732420b03f08afea0406db6402e220e"},
+]
 regex = [
     {file = "regex-2020.11.13-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:8b882a78c320478b12ff024e81dc7d43c1462aa4a3341c754ee65d857a521f85"},
     {file = "regex-2020.11.13-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:a63f1a07932c9686d2d416fb295ec2c01ab246e89b4d58e5fa468089cab44b70"},
diff --git a/pyproject.toml b/pyproject.toml
index dbf1407..83e1e14 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,6 +8,7 @@ license = "GPL-3.0"
 [tool.poetry.dependencies]
 python = "^3.7"
 click = "^7.1.2"
+python-dotenv = "^0.15.0"
 
 [tool.poetry.dev-dependencies]
 black = "^20.8b1"