diff --git a/pyproject.toml b/pyproject.toml
index a4c48dd..43d33c1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,8 @@ requires-python = ">=3.8"
 keywords = ["WIS2.0", "CAP", "XML", "GeoJSON", "convert"]
 license = {file = "LICENSE"}
 dependencies = [
-
+    "xmltodict>=0.13.0",
+    "click>=8.1.7"
 ]
 dynamic = ["version"]
 
diff --git a/src/cap2geojson/__init__.py b/src/cap2geojson/__init__.py
index 61e613a..9c2d673 100644
--- a/src/cap2geojson/__init__.py
+++ b/src/cap2geojson/__init__.py
@@ -32,5 +32,5 @@
 )
 
 
-def convert(xml: str) -> dict:
+def transform(xml: str) -> dict:
     return to_geojson(xml)
diff --git a/src/cap2geojson/cli.py b/src/cap2geojson/cli.py
index e69de29..b441e38 100644
--- a/src/cap2geojson/cli.py
+++ b/src/cap2geojson/cli.py
@@ -0,0 +1,30 @@
+import click
+import json
+
+from cap2geojson import __version__, transform as transform_to_geojson
+
+
+@click.group()
+@click.version_option(version=__version__)
+def cli():
+    """cap2geojson"""
+
+    pass
+
+
+@click.command()
+@click.pass_context
+@click.argument("cap_xml", type=click.File(mode="r", errors="ignore"))
+def transform(ctx, cap_xml) -> None:
+    """Convert a CAP alert to GeoJSON"""
+    cap = cap_xml.read()
+
+    try:
+        result = transform_to_geojson(cap)
+        click.echo(json.dumps(result, indent=2))
+    except Exception as e:
+        click.echo(f"Error: {e}")
+        ctx.exit(1)
+
+
+cli.add_command(transform)