diff --git a/transparency-in-coverage/python/mrfutils/src/mrfutils/helpers.py b/transparency-in-coverage/python/mrfutils/src/mrfutils/helpers.py
index fb236d3..c5f2264 100644
--- a/transparency-in-coverage/python/mrfutils/src/mrfutils/helpers.py
+++ b/transparency-in-coverage/python/mrfutils/src/mrfutils/helpers.py
@@ -7,13 +7,15 @@
 from itertools import chain
 from pathlib import Path
 from urllib.parse import urlparse
+import zipfile
+import io
 
 import requests
 
 from mrfutils.exceptions import InvalidMRF
 
 log = logging.getLogger('mrfutils')
-log.setLevel(logging.INFO)
+log.setLevel(logging.DEBUG)
 
 
 def prepend(value, iterator):
@@ -37,7 +39,7 @@ def peek(iterator):
 
 class JSONOpen:
 	"""
-	Context manager for opening JSON(.gz) MRFs.
+	Context manager for opening JSON(.gz/.zip) MRFs.
 	Usage:
 	>>> with JSONOpen('localfile.json') as f:
 	or
@@ -58,44 +60,48 @@ def __init__(self, filename):
 
 		if not (
 			self.suffix.endswith('.json.gz') or
-			self.suffix.endswith('.json')
+			self.suffix.endswith('.json') or
+			self.suffix.endswith('.zip')
 		):
-			raise InvalidMRF(f'Suffix not JSON: {self.filename=} {self.suffix=}')
+			raise InvalidMRF(f'Suffix not JSON or ZIP: {self.filename=} {self.suffix=}')
 
 		self.is_remote = parsed_url.scheme in ('http', 'https')
 
 	def __enter__(self):
-		if (
-			self.is_remote
-			# endswith is used to protect against the case
-			# where the filename contains lots of dots
-			# insurer.stuff.json.gz
-			and self.suffix.endswith('.json.gz')
-		):
-			self.s = requests.Session()
-			self.r = self.s.get(self.filename, stream=True)
-			self.f = gzip.GzipFile(fileobj=self.r.raw)
-
-		elif (
-			self.is_remote
-			and self.suffix.endswith('.json')
-		):
-			self.s = requests.Session()
-			self.r = self.s.get(self.filename, stream=True)
-			self.r.raw.decode_content = True
-			self.f = self.r.raw
-
-		elif self.suffix == '.json.gz':
-			self.f = gzip.open(self.filename, 'rb')
-
+		if self.is_remote and self.suffix.endswith('.zip'):            
+			# Download the zip file and store it in memory
+			response = requests.get(self.filename)
+			response.raise_for_status()
+			zip_data = io.BytesIO(response.content)
+
+			# Open the first file in the zip
+			with zipfile.ZipFile(zip_data) as zip_file:
+				inner_filename = zip_file.namelist()[0]
+				self.f = zip_file.open(inner_filename)
+		elif self.suffix.endswith('.json.gz'):
+			if self.is_remote:
+				self.s = requests.Session()
+				self.r = self.s.get(self.filename, stream=True)
+				self.f = gzip.GzipFile(fileobj=self.r.raw)
+			else:
+				self.f = gzip.open(self.filename, 'rb')
+		elif self.suffix.endswith('.json'):
+			if self.is_remote:
+				self.s = requests.Session()
+				self.r = self.s.get(self.filename, stream=True)
+				self.r.raw.decode_content = True
+				self.f = self.r.raw
+			else:
+				self.f = open(self.filename, 'rb')
 		else:
-			self.f = open(self.filename, 'rb')
+			raise InvalidMRF(f'Suffix not JSON or ZIP: {self.filename=} {self.suffix=}')
 
 		log.info(f'Opened file: {self.filename}')
 		return self.f
 
+
 	def __exit__(self, exc_type, exc_val, exc_tb):
-		if self.is_remote:
+		if self.is_remote and not self.suffix.endswith('.zip'):
 			self.s.close()
 			self.r.close()