diff --git a/docs/sources/api/README.md b/docs/sources/api/README.md
new file mode 100644
index 0000000000..10dede382b
--- /dev/null
+++ b/docs/sources/api/README.md
@@ -0,0 +1,5 @@
+This directory holds the authoritative specifications of APIs defined and implemented by Docker. Currently this includes:
+
+* The remote API by which a docker node can be queried over HTTP
+* The registry API by which a docker node can download and upload container images for storage and sharing
+* The index search API by which a docker node can search the public index for images to download