diff --git a/README.md b/README.md
new file mode 100644
index 00000000..a82ae361
--- /dev/null
+++ b/README.md
@@ -0,0 +1,14 @@
+# CMEPS
+NUOPC based Community Mediator for Earth Prediction Systems
+
+## Overview and resources
+
+The Community Mediator for Earth Prediction Systems (CMEPS) is a
+NUOPC-compliant Mediator component used for coupling Earth system
+model components. It is currently being used in NCAR's Community
+Earth System Model (CESM) and NOAA's UFS subseasonal-to-seasonal
+coupled system application.
+
+For documentation see
+
+https://escomp.github.io/CMEPS/