diff --git a/changelogs/identity_service/newsfragments/2287.new b/changelogs/identity_service/newsfragments/2287.new
new file mode 100644
index 00000000..7d575bc9
--- /dev/null
+++ b/changelogs/identity_service/newsfragments/2287.new
@@ -0,0 +1 @@
+Add ``/hash_details`` and a new ``/lookup`` endpoint for performing hashed association lookups.