diff --git a/src/poprank/metrics/__init__.py b/src/poprank/metrics/__init__.py
new file mode 100644
index 0000000..00de2db
--- /dev/null
+++ b/src/poprank/metrics/__init__.py
@@ -0,0 +1,7 @@
+from ._base import Metric
+from .hamming import Hamming
+from .kendall import Kendall
+
+__all__ = [
+    "Metric", "Hamming", "Kendall"
+]