diff --git a/numpy/__init__.pyi b/numpy/__init__.pyi
new file mode 100644
index 0000000..998897e
--- /dev/null
+++ b/numpy/__init__.pyi
@@ -0,0 +1,12 @@
+# very simple, just enough to start running tests
+
+class ndarray: pass
+
+class dtype: pass
+
+def array(
+    object : object,
+    dtype : dtype = ...,
+    copy : bool = ...,
+    subok : bool = ...,
+    ndmin : int = ...) -> ndarray: ...
diff --git a/numpy/py.typed b/numpy/py.typed
new file mode 100644
index 0000000..e69de29
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..d3ce124
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,18 @@
+from setuptools import setup, find_packages
+
+setup(
+    name='numpy_stubs',
+    maintainer="NumPy Developers",
+    maintainer_email="numpy-discussion@python.org",
+    description="PEP 561 type stubs for numpy",
+    url="http://www.numpy.org",
+    license='BSD',
+    version="0.0.1",
+    packages=find_packages(),
+
+    # PEP 561 requires these
+    install_requires=['numpy~=1.13.0'],
+    package_data={
+    	'numpy': 'py.typed'
+    },
+)
diff --git a/tests/README.md b/tests/README.md
new file mode 100644
index 0000000..0067c9a
--- /dev/null
+++ b/tests/README.md
@@ -0,0 +1,9 @@
+Testing
+=======
+
+To run these tests:
+
+    export MYPYPATH='..'
+    mypy test_simple.py
+
+In future, this should change to use the test framework used by mypy.
diff --git a/tests/test_simple.py b/tests/test_simple.py
new file mode 100644
index 0000000..53026e6
--- /dev/null
+++ b/tests/test_simple.py
@@ -0,0 +1,5 @@
+import numpy as np
+
+def foo(a : np.ndarray): pass
+
+foo(np.array(1))