diff --git a/encryptoapi/routing/keys.go b/encryptoapi/routing/keys.go
index 66439316c..7685891ce 100644
--- a/encryptoapi/routing/keys.go
+++ b/encryptoapi/routing/keys.go
@@ -18,6 +18,10 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
 	"github.com/Shopify/sarama"
 	"github.com/matrix-org/dendrite/clientapi/auth/storage/devices"
 	"github.com/matrix-org/dendrite/clientapi/httputil"
@@ -27,9 +31,6 @@ import (
 	"github.com/matrix-org/gomatrixserverlib"
 	"github.com/matrix-org/util"
 	"github.com/pkg/errors"
-	"net/http"
-	"strings"
-	"time"
 )
 
 const (
@@ -259,6 +260,17 @@ func ClaimOneTimeKeys(
 	}
 }
 
+// ChangesInKeys returns the changes in the keys after last sync
+func ChangesInKeys(req *http.Request,
+	encryptionDB *storage.Database,
+) util.JSONResponse {
+
+	return util.JSONResponse{
+		Code: http.StatusOK,
+		JSON: struct{}{},
+	}
+}
+
 // todo: check through interface for duplicate and what type of request should it be
 // whether device or one time or both of them
 func checkUpload(req *types.UploadEncryptSpecific, typ int) bool {
diff --git a/encryptoapi/routing/routing.go b/encryptoapi/routing/routing.go
index eeb6d4ba0..cf1c0eb2e 100644
--- a/encryptoapi/routing/routing.go
+++ b/encryptoapi/routing/routing.go
@@ -52,7 +52,6 @@ func Setup(
 
 	unstablemux.Handle("/keys/query",
 		common.MakeAuthAPI("query keys", authData, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
-			//vars := mux.Vars(req)
 			return QueryPKeys(req, encryptionDB, device.ID, deviceDB)
 		}),
 	).Methods(http.MethodPost, http.MethodOptions)
@@ -63,4 +62,10 @@ func Setup(
 		}),
 	).Methods(http.MethodPost, http.MethodOptions)
 
+	unstablemux.Handle("/keys/changes",
+		common.MakeAuthAPI("get changes", authData, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
+			return ChangesInKeys(req, encryptionDB)
+		}),
+	).Methods(http.MethodGet, http.MethodOptions)
+
 }
diff --git a/encryptoapi/types/changes.go b/encryptoapi/types/changes.go
new file mode 100644
index 000000000..56d089724
--- /dev/null
+++ b/encryptoapi/types/changes.go
@@ -0,0 +1,27 @@
+// Copyright Sumukha PK
+//
+// 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.
+
+package types
+
+// ChangesRequest structure
+type ChangesRequest struct {
+	From string `json:"from"`
+	To   string `json:"to"`
+}
+
+// ChangesResponse structure
+type ChangesResponse struct {
+	Changed []string `json:"changed"`
+	Left    []string `json:"left"`
+}
diff --git a/encryptoapi/types/upload.go b/encryptoapi/types/upload.go
index 7e8a62c13..d30f0719f 100644
--- a/encryptoapi/types/upload.go
+++ b/encryptoapi/types/upload.go
@@ -46,12 +46,12 @@ type KeyObject struct {
 	Signature map[string]map[string]string `json:"signatures"`
 }
 
-// OneTimeKey structure
-type OneTimeKey struct {
-	//KeyString map[string]string
-	//KeyObject map[string]KeyObject
-	KeySth map[string]interface{}
-}
+// // OneTimeKey structure
+// type OneTimeKey struct {
+// 	//KeyString map[string]string
+// 	//KeyObject map[string]KeyObject
+// 	KeySth map[string]interface{}
+// }
 
 // OneTimeKeySpecific structure
 type OneTimeKeySpecific struct {