diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..ba10930
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,11 @@
+[tox]
+envlist = py24,py25,py26,py27
+
+[testenv]
+commands=py.test --junitxml=junit-{envname}.xml
+deps = 
+    simplejson
+    pytest
+    
+[testenv:pypy]
+basepython=/usr/bin/pypy-c