diff --git a/.gitignore b/.gitignore
index f503fdc..17d92e2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,6 +2,9 @@
 *.py[co]
 __pycache__/
 
+# tox
+.tox/
+
 # setuptools
 *.egg-info/
 build/
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..dfa20b7
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,10 @@
+[tox]
+envlist = py{36,37,38},mypy
+
+[testenv]
+commands = {envpython} -m unittest discover --start-directory ./tests
+
+[testenv:mypy]
+deps =
+	mypy
+commands = mypy