diff --git a/include/ircd/m/event.h b/include/ircd/m/event.h
index 6d488d31d..75aee7794 100644
--- a/include/ircd/m/event.h
+++ b/include/ircd/m/event.h
@@ -19,6 +19,7 @@ namespace ircd::m
 	bool my(const event &);
 
 	size_t degree(const event &);
+	string_view membership(const event &);
 
 	bool check_size(std::nothrow_t, const event &);
 	void check_size(const event &);
diff --git a/ircd/m/event.cc b/ircd/m/event.cc
index cd370c2d9..6de712958 100644
--- a/ircd/m/event.cc
+++ b/ircd/m/event.cc
@@ -74,6 +74,14 @@ ircd::m::check_size(std::nothrow_t,
 	return event_size <= size_t(event_max_size);
 }
 
+ircd::string_view
+ircd::m::membership(const m::event &event)
+{
+	return json::get<"membership"_>(event)?
+		string_view{json::get<"membership"_>(event)}:
+		unquote(json::get<"content"_>(event).get("membership"));
+}
+
 size_t
 ircd::m::degree(const event &event)
 {