diff --git a/main.py b/main.py
index 4677180..c00eeaf 100644
--- a/main.py
+++ b/main.py
@@ -1,18 +1,40 @@
 from logic import *
 import os
 from itertools import chain
+import argparse
 from dotenv import load_dotenv
 from rich import print
 
 
-load_dotenv()
-
-
 def main():
-	key = os.environ.get("API_KEY")
+	load_dotenv()
 
+	parser = argparse.ArgumentParser(
+		prog="Arbitrage Finder",
+		description="""A simple tool to find sports betting arbitrage opportunities.
+		
+		The tool fetches the odds from The Odds API (https://the-odds-api.com/) and compares the odds at different
+		bookmakers to each other in order to determine whether there are profitable and risk-free bets available."""
+	)
+	parser.add_argument(
+		"-k", "--key",
+		default=os.environ.get("API_KEY"),
+		help="The API key from The Odds API. If left blank it will default to the value of $API_KEY."
+	)
+	parser.add_argument(
+		"-r", "--region",
+		choices=["eu", "us", "au", "uk"],
+		default="eu",
+		help="The region in which to look for arbitrage opportunities."
+	)
+	args = parser.parse_args()
+
+	key = args.key
+	region = args.region
+
+	# logic
 	sports = get_sports(key)
-	data = chain.from_iterable(get_data(key, sport) for sport in sports)
+	data = chain.from_iterable(get_data(key, sport, region=region) for sport in sports)
 	data = filter(lambda x: x != "message", data)
 	results = process_data(data)