diff --git a/hack/utils/build_id.ml b/hack/utils/build_id.ml
index 404814d8182..93f69d38fbb 100644
--- a/hack/utils/build_id.ml
+++ b/hack/utils/build_id.ml
@@ -40,3 +40,11 @@ let is_build_optimized =
  * v5 (hvvm 3.23, 17 Nov 2017) - 'hh_client lsp' stable
  *)
 let build_api_version = 5
+
+let build_version_json =
+  let open Hh_json in
+  JSON_Object [
+    "commit", JSON_String build_revision;
+    "commit_time", int_ build_commit_time;
+    "api_version", int_ build_api_version;
+  ]
diff --git a/hack/utils/build_id.mli b/hack/utils/build_id.mli
index e5da96c77bc..e5dfba2590a 100644
--- a/hack/utils/build_id.mli
+++ b/hack/utils/build_id.mli
@@ -27,3 +27,4 @@ val build_minor_version : int
 val build_api_version : int
 val build_mode : string
 val is_build_optimized : bool
+val build_version_json : Hh_json.json