diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..3eb6b7f
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,10 @@
+[tox]
+envlist = py27, py35, py36
+
+[testenv]
+setenv = PYTHONPATH = .
+deps =
+    -rrequirements-dev.txt
+commands=
+    python -m pytest -m "not xfail" {posargs: "{toxinidir}/ethfinex/tests" --cov-config="{toxinidir}/tox.ini" --cov=ethfinex}
+    python -m pytest -m "xfail"     {posargs: "{toxinidir}/ethfinex/tests"
\ No newline at end of file