diff --git a/pymisp/api.py b/pymisp/api.py
index 03747c2..511236c 100644
--- a/pymisp/api.py
+++ b/pymisp/api.py
@@ -1,30 +1,45 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-""" Python API for MISP """
+""" Python API using the REST interface of MISP """
 
 import requests
 
 
 class PyMISP(object):
-    """ Python API for MISP, you will need the URL
-    of the instnce you want to query,  and the auth key of your user."""
+    """
+        Python API for MISP
 
-    def __init__(self, url, key, out_type='json'):
+        :param url: URL of the MISP instance you want to connect to
+        :param key: API key of the user you want to use
+        :param ssl: can be True or False (to check ot not the validity
+                    of the certificate. Or a CA_BUNDLE in case of self
+                    signed certiifcate (the concatenation of all the
+                    *.crt of the chain)
+        :param out_type: Type of object (json or xml)
+    """
+
+    def __init__(self, url, key, ssl=True, out_type='json'):
         self.url = url + '/events'
         self.key = key
+        self.ssl = ssl
         self.out_type = out_type
         self.rest = self.url + '/{}'
 
     def __prepare_session(self, force_out=None):
         """
             Prepare the headers of the session
+
+            :param force_out: force the type of the expect output
+                              (overwrite the constructor)
+
         """
         if force_out is not None:
             out = force_out
         else:
             out = self.out_type
         session = requests.Session()
+        session.verify = self.ssl
         session.headers.update(
             {'Authorization': self.key,
              'Accept': 'application/' + out,
@@ -40,42 +55,54 @@ class PyMISP(object):
             Warning, there's a limit on the number of results
         """
         session = self.__prepare_session()
-        return session.get(self.rest, verify=False)
+        return session.get(self.rest)
 
     def get_event(self, event_id):
         """
             Get an event
+
+            :param event_id: Event id to get
         """
         session = self.__prepare_session()
-        return session.get(self.rest.format(event_id), verify=False)
+        return session.get(self.rest.format(event_id))
 
     def add_event(self, event):
         """
             Add a new event
+
+            :param event: Event object to add
         """
         session = self.__prepare_session()
-        return session.post(self.url, data=event, verify=False)
+        return session.post(self.url, data=event)
 
     def update_event(self, event_id, event):
         """
             Update an event
+
+            :param event_id: Event id to update
+            :param event: Elements to add
         """
         session = self.__prepare_session()
         return session.post(self.rest.format(event_id), data=event,
-                            verify=False)
+                            verify=self.ssl)
 
     def delete_event(self, event_id):
         """
             Delete an event
+
+            :param event_id: Event id to delete
         """
         session = self.__prepare_session()
-        return session.delete(self.rest.format(event_id), verify=False)
+        return session.delete(self.rest.format(event_id))
 
     # ######## REST Search #########
 
     def __prepare_rest_search(self, values, not_values):
         """
-            Prepare a search
+            Prepare a search, generate the chain processed by the server
+
+            :param values: Values to search
+            :param not_values: Values that should not be in the response
         """
         to_return = ''
         if values is not None:
@@ -98,6 +125,15 @@ class PyMISP(object):
                category=None, org=None, tags=None, not_tags=None):
         """
             Search via the Rest API
+
+            :param values: values to search for
+            :param not_values: values *not* to search for
+            :param type_attribute: Type of attribute
+            :param category: Category to search
+            :param org: Org reporting the event
+            :param tags: Tags to search for
+            :param not_tags: Tags *not* to search for
+
         """
         search = self.url + '/restSearch/download/{}/{}/{}/{}/{}'
         val = self.__prepare_rest_search(values, not_values).replace('/', '|')
@@ -115,15 +151,18 @@ class PyMISP(object):
 
         session = self.__prepare_session()
         return session.get(search.format(val, type_attribute,
-                                         category, org, tag), verify=False)
+                                         category, org, tag))
 
     def get_attachement(self, event_id):
         """
             Get attachement of an event (not sample)
+
+            :param event_id: Event id from where the attachements will
+                             be fetched
         """
         attach = self.url + '/attributes/downloadAttachment/download/{}'
         session = self.__prepare_session()
-        return session.get(attach.format(event_id), verify=False)
+        return session.get(attach.format(event_id))
 
     # ############## Export ###############
 
@@ -133,11 +172,13 @@ class PyMISP(object):
         """
         xml = self.url + '/xml/download'
         session = self.__prepare_session('xml')
-        return session.get(xml, verify=False)
+        return session.get(xml)
 
     def download(self, event_id, with_attachement=False):
         """
             Download one event in XML
+
+            :param event_id: Event id of the event to download (same as get)
         """
         template = self.url + '/events/xml/download/{}/{}'
         if with_attachement:
@@ -145,6 +186,6 @@ class PyMISP(object):
         else:
             attach = 'false'
         session = self.__prepare_session('xml')
-        return session.get(template.format(event_id, attach), verify=False)
+        return session.get(template.format(event_id, attach))
 
     ##########################################