diff --git a/api/apps/permissions.py b/api/apps/permissions.py
new file mode 100644
index 0000000..ee6bc32
--- /dev/null
+++ b/api/apps/permissions.py
@@ -0,0 +1,34 @@
+from core.rest_client import RestClient
+
+
+class Permissions(RestClient):
+    def __init__(self, api_root_url, **kwargs):
+        super(Permissions, self).__init__(api_root_url, **kwargs)
+
+    def list_users_blocked_by_an_oragnization(self, org, **kwargs):
+        """
+        https://developer.github.com/v3/orgs/blocking/#list-users-blocked-by-an-organization
+        """
+        headers = {"accept": "application/vnd.github.giant-sentry-fist-preview+json"}
+        return self.get("/orgs/{}/blocks".format(org), **kwargs, headers=headers)
+
+    def check_if_a_user_is_blocked_by_an_organization(self, org, username, **kwargs):
+        """
+        https://developer.github.com/v3/orgs/blocking/#check-if-a-user-is-blocked-by-an-organization 
+        """
+        headers = {"accept": "application/vnd.github.giant-sentry-fist-preview+json"}
+        return self.get("/orgs/{}/blocks/{}".format(org, username), **kwargs, headers=headers)
+
+    def block_a_user_from_an_organization(self,org, username, **kwargs):
+        """
+        https://developer.github.com/v3/orgs/blocking/#block-a-user-from-an-organization
+        """
+        headers = {"accept": "application/vnd.github.giant-sentry-fist-preview+json"}
+        return self.put("/orgs/{}/blocks/{}".format(org, username), headers=headers, **kwargs)
+
+    def unblock_a_user_from_an_organization(self, org, username, **kwargs):
+        """
+        https://developer.github.com/v3/orgs/blocking/#unblock-a-user-from-an-organization
+        """
+        headers = {"accept": "application/vnd.github.giant-sentry-fist-preview+json"}
+        return  self.delete("/orgs/{}/blocks/{}".format(org, username), headers=headers, **kwargs)
\ No newline at end of file