diff --git a/data_descriptors/collections/_context b/data_descriptors/collections/_context
new file mode 100644
index 000000000..c20e0cf12
--- /dev/null
+++ b/data_descriptors/collections/_context
@@ -0,0 +1,13 @@
+{
+  "@context":{
+
+      "project":{
+          "@type":"@id",
+          "@context":"https://wcrp-cmip.github.io/WCRP-UNIVERSE/mip/_context"
+      },
+      "tables":{
+          "@type":"@id",
+          "@context":"https://wcrp-cmip.github.io/MIP-variables/tables/_context"
+      }
+}
+}