diff --git a/geotribu_cli/json/__init__.py b/geotribu_cli/json/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/geotribu_cli/json/json_client.py b/geotribu_cli/json/json_client.py
new file mode 100644
index 0000000..14e26f8
--- /dev/null
+++ b/geotribu_cli/json/json_client.py
@@ -0,0 +1,56 @@
+from typing import Any
+
+import requests
+from requests import Response
+
+from geotribu_cli.__about__ import __executable_name__, __version__
+
+JSON_FEED_URL = "https://geotribu.fr/feed_json_created.json"
+JSON_TAGS_URL = "https://geotribu.fr/tags.json"
+
+HEADERS: dict = {
+    b"Accept": b"application/json",
+    b"User-Agent": bytes(f"{__executable_name__}/{__version__}", "utf8"),
+}
+
+
+class JsonFeedClient:
+    def __init__(self, url: str = JSON_FEED_URL, tags_url: str = JSON_TAGS_URL):
+        """
+        Class initialization
+
+        Args:
+            url: JSON feed URL, defaults to https://geotribu.fr/feed_json_created.json
+            tags_url: JSON tags URL, defaults to https://geotribu.fr/tags.json
+        """
+        self.url = url
+        self.tags_url = tags_url
+
+    def items(self) -> list[dict[str, Any]]:
+        """
+        Fetch Geotribu JSON feed items
+
+        Returns:
+            List of dicts representing raw JSON feed items
+        """
+        r: Response = requests.get(self.url, headers=HEADERS)
+        r.raise_for_status()
+        return r.json()["items"]
+
+    def tags(self, should_sort: bool = False) -> list[str]:
+        """
+        Fetch Geotribu used tags
+
+        Args:
+            should_sort: if the list of returned tags should be alphabetically sorted
+
+        Returns:
+            List of tags used by Geotribu
+        """
+        r: Response = requests.get(self.tags_url, headers=HEADERS)
+        r.raise_for_status()
+        tags = set()
+        for item in r.json()["mappings"]:
+            for tag in item["tags"]:
+                tags.add(tag)
+        return sorted(tags) if should_sort else list(tags)
diff --git a/tests/test_json_client.py b/tests/test_json_client.py
new file mode 100644
index 0000000..6694354
--- /dev/null
+++ b/tests/test_json_client.py
@@ -0,0 +1,36 @@
+import unittest
+
+from geotribu_cli.json.json_client import JsonFeedClient
+
+
+class TestJsonClient(unittest.TestCase):
+    """Test Geotribu JSON client."""
+
+    def __init__(self, methodName: str = "runTest") -> None:
+        super().__init__(methodName)
+        self.client = JsonFeedClient()
+        self.items = self.client.items()
+        self.tags = self.client.tags()
+
+    def test_items_exist(self):
+        self.assertGreater(len(self.items), 0)
+        self.assertEqual(len(self.items), 50)
+
+    def test_tags_exist(self):
+        self.assertGreater(len(self.tags), 0)
+
+    def test_some_existing_tags(self):
+        for tag in ["OpenLayers", "QGIS", "OpenStreetMap", "QFieldCloud"]:
+            self.assertIn(tag, self.tags)
+
+    def test_unexisting_tags(self):
+        for tag in ["Kinkeliba", "Jogging", "cziygiyezrvcyryez"]:
+            self.assertNotIn(tag, self.tags)
+
+    def test_sorted_tags(self):
+        sorted_tags = self.client.tags(should_sort=True)
+        i = 1
+        while i < len(sorted_tags):
+            if sorted_tags[i] < sorted_tags[i - 1]:
+                raise Exception("Tags are not alphabetically sorted")
+            i += 1