diff --git a/synapse/rest/client/capabilities.py b/synapse/rest/client/capabilities.py
new file mode 100644
index 0000000000..88e3aac797
--- /dev/null
+++ b/synapse/rest/client/capabilities.py
@@ -0,0 +1,68 @@
+# Copyright 2019 New Vector
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import logging
+from typing import TYPE_CHECKING, Tuple
+
+from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, MSC3244_CAPABILITIES
+from synapse.http.servlet import RestServlet
+from synapse.http.site import SynapseRequest
+from synapse.types import JsonDict
+
+from ._base import client_patterns
+
+if TYPE_CHECKING:
+ from synapse.server import HomeServer
+
+logger = logging.getLogger(__name__)
+
+
+class CapabilitiesRestServlet(RestServlet):
+ """End point to expose the capabilities of the server."""
+
+ PATTERNS = client_patterns("/capabilities$")
+
+ def __init__(self, hs: "HomeServer"):
+ super().__init__()
+ self.hs = hs
+ self.config = hs.config
+ self.auth = hs.get_auth()
+ self.auth_handler = hs.get_auth_handler()
+
+ async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
+ await self.auth.get_user_by_req(request, allow_guest=True)
+ change_password = self.auth_handler.can_change_password()
+
+ response = {
+ "capabilities": {
+ "m.room_versions": {
+ "default": self.config.default_room_version.identifier,
+ "available": {
+ v.identifier: v.disposition
+ for v in KNOWN_ROOM_VERSIONS.values()
+ },
+ },
+ "m.change_password": {"enabled": change_password},
+ }
+ }
+
+ if self.config.experimental.msc3244_enabled:
+ response["capabilities"]["m.room_versions"][
+ "org.matrix.msc3244.room_capabilities"
+ ] = MSC3244_CAPABILITIES
+
+ return 200, response
+
+
+def register_servlets(hs: "HomeServer", http_server):
+ CapabilitiesRestServlet(hs).register(http_server)
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