link to CS API Swagger Viewer
@@ -43,6 +43,8 @@ The specification consists of the following parts:
The `Appendices <appendices.html>`_ contain supplemental information not specific to
one of the above APIs.
+The `Matrix Client-Server API Swagger Viewer <https://matrix.org/docs/api/client-server/>`_ is useful for browsing the Client-Server API.
+
Introduction to the Matrix APIs
-------------------------------
.. WARNING::
