diff --git a/splitio/api/client.py b/splitio/api/client.py
index c58d14e9..69bb92af 100644
--- a/splitio/api/client.py
+++ b/splitio/api/client.py
@@ -2,11 +2,11 @@
 from collections import namedtuple
 
 import requests
-import logging
-_LOGGER = logging.getLogger(__name__)
+
 
 HttpResponse = namedtuple('HttpResponse', ['status_code', 'body'])
 
+
 class HttpClientException(Exception):
     """HTTP Client exception."""
 
@@ -28,7 +28,7 @@ class HttpClient(object):
     AUTH_URL = 'https://auth.split.io/api'
     TELEMETRY_URL = 'https://telemetry.split.io/api'
 
-    def __init__(self, timeout=None, sdk_url=None, events_url=None, auth_url=None, telemetry_url=None):
+    def __init__(self, timeout=None, sdk_url=None, events_url=None, auth_url=None, telemetry_url=None, tls_config=None):
         """
         Class constructor.
 
@@ -51,6 +51,8 @@ def __init__(self, timeout=None, sdk_url=None, events_url=None, auth_url=None, t
             'telemetry': telemetry_url if telemetry_url is not None else self.TELEMETRY_URL,
         }
 
+        self._tls = tls_config if tls_config else {}
+
     def _build_url(self, server, path):
         """
         Build URL according to server specified.
@@ -105,7 +107,8 @@ def get(self, server, path, sdk_key, query=None, extra_headers=None):  # pylint:
                 self._build_url(server, path),
                 params=query,
                 headers=headers,
-                timeout=self._timeout
+                timeout=self._timeout,
+                cert=self._certs(),
             )
             return HttpResponse(response.status_code, response.text)
         except Exception as exc:  # pylint: disable=broad-except
@@ -142,8 +145,18 @@ def post(self, server, path, sdk_key, body, query=None, extra_headers=None):  #
                 json=body,
                 params=query,
                 headers=headers,
-                timeout=self._timeout
+                timeout=self._timeout,
+                cert=self._certs(),
             )
             return HttpResponse(response.status_code, response.text)
         except Exception as exc:  # pylint: disable=broad-except
             raise HttpClientException('requests library is throwing exceptions') from exc
+
+
+    def _certs(self):
+        """
+        Get certificates as a tuple if they're set, None otherwise.
+        """
+        if 'tlsClientCertificate' in self._tls and 'tlsClientPrivateKey' in self._tls:
+            return (self._tls.get('tlsClientCertificate'), self._tls.get('tlsClientPrivateKey')) 
+        return None
diff --git a/splitio/client/config.py b/splitio/client/config.py
index 1789e0b9..b2880df8 100644
--- a/splitio/client/config.py
+++ b/splitio/client/config.py
@@ -26,6 +26,8 @@
     'IPAddressesEnabled': True,
     'impressionsMode': 'OPTIMIZED',
     'impressionListener': None,
+    'tlsClientCertificate': None,
+    'tlsClientPrivateKey': None,
     'redisLocalCacheEnabled': True,
     'redisLocalCacheTTL': 5,
     'redisHost': 'localhost',
diff --git a/splitio/client/factory.py b/splitio/client/factory.py
index 5ac809cc..8e853b15 100644
--- a/splitio/client/factory.py
+++ b/splitio/client/factory.py
@@ -332,12 +332,16 @@ def _build_in_memory_factory(api_key, cfg, sdk_url=None, events_url=None,  # pyl
     telemetry_evaluation_producer = telemetry_producer.get_telemetry_evaluation_producer()
     telemetry_init_producer = telemetry_producer.get_telemetry_init_producer()
 
+    tls_keys = ['tlsClientCertificate', 'tlsClientPrivateKey']
+    tls_cfg = {k: cfg[k] for k in tls_keys} if all(k in cfg for k in tls_keys) else None
+
     http_client = HttpClient(
         sdk_url=sdk_url,
         events_url=events_url,
         auth_url=auth_api_base_url,
         telemetry_url=telemetry_api_base_url,
-        timeout=cfg.get('connectionTimeout')
+        timeout=cfg.get('connectionTimeout'),
+        tls_config=tls_cfg
     )
 
     sdk_metadata = util.get_metadata(cfg)