diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..b27657b
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,13 @@
+[tox]
+envlist = py27,py34,pep8
+
+[testenv]
+commands=python setup.py test
+deps=
+  requests
+  simplejson
+  mock
+
+[testenv:pep8]
+deps = pep8
+commands = pep8 --repeat --ignore=E501 --show-source mackerel tests setup.py