diff --git a/charon_vna/cli.py b/charon_vna/cli.py
new file mode 100644
index 0000000..5b49c92
--- /dev/null
+++ b/charon_vna/cli.py
@@ -0,0 +1,26 @@
+# %% imports
+from pathlib import Path
+
+import click
+
+# from charon_vna.vna import Charon
+
+
+@click.command()
+@click.argument("start", type=float)
+@click.argument("stop", type=float)
+@click.argument("pts", type=int)
+@click.option("--ports", "-n", type=int, default=1, help="Number of ports.")
+@click.option("--power", "-p", type=float, default=-5, help="Port output power [dBm].")
+@click.option("--snp", "-o", type=click.Path(), help="Path for output Touchstone file.")
+def capture(start: float, stop: float, pts: int, power: float, snp: Path, ports: int):
+    pass
+
+
+# %%
+def main():
+    capture()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/pyproject.toml b/pyproject.toml
index 5d3043c..f454e9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ dynamic = ["version"]
 homepage = "https://git.brendanhaines.com/brendanhaines/charon"
 
 [project.scripts]
-# charon-cli = "charon_vna.cli:main"
+charon-cli = "charon_vna.cli:main"
 charon-gui = "charon_vna.gui:main"
 
 [tool.setuptools_scm]