diff --git a/doc/API/DeviceGroups.md b/doc/API/DeviceGroups.md
index 95a6593784..99fca0f92d 100644
--- a/doc/API/DeviceGroups.md
+++ b/doc/API/DeviceGroups.md
@@ -206,3 +206,66 @@ Output:
 }
 ```
 
+### Add devices to group
+
+Add devices to a device group.
+
+Route: `/api/v0/devicesgroups/:name/devices`
+
+- name Is the name of the device group which can be obtained using
+  [`get_devicegroups`](#function-get_devicegroups). Please ensure that
+  the name is urlencoded if it needs to be (i.e Linux Servers would
+  need to be urlencoded.
+
+Input (JSON):
+
+- `devices`: *required* - A list of devices to be added to the group.
+
+Example:
+
+```curl
+curl -H 'X-Auth-Token: YOURAPITOKENHERE' \
+  -X POST https://librenms.org/api/v0/devicegroups/devices \
+  --data-raw '{"devices":[261,271]}'
+```
+
+Output:
+
+```json
+{
+    "status": "ok",
+    "message": "Devices added"
+}
+```
+
+### Remove devices from group
+
+Removes devices from a device group.
+
+Route: `/api/v0/devicesgroups/:name/devices`
+
+- name Is the name of the device group which can be obtained using
+  [`get_devicegroups`](#function-get_devicegroups). Please ensure that
+  the name is urlencoded if it needs to be (i.e Linux Servers would
+  need to be urlencoded.
+
+Input (JSON):
+
+- `devices`: *required* - A list of devices to be removed from the group.
+
+Example:
+
+```curl
+curl -H 'X-Auth-Token: YOURAPITOKENHERE' \
+  -X DELETE https://librenms.org/api/v0/devicegroups/devices \
+  --data-raw '{"devices":[261,271]}'
+```
+
+Output:
+
+```json
+{
+    "status": "ok",
+    "message": "Devices removed"
+}
+```
diff --git a/includes/html/api_functions.inc.php b/includes/html/api_functions.inc.php
index a792faebdd..b3552d54e3 100644
--- a/includes/html/api_functions.inc.php
+++ b/includes/html/api_functions.inc.php
@@ -2233,6 +2233,80 @@ function add_device_group(Illuminate\Http\Request $request)
     return api_success($deviceGroup->id, 'id', 'Device group ' . $deviceGroup->name . ' created', 201);
 }
 
+function update_device_group_add_devices(Illuminate\Http\Request $request)
+{
+    $data = json_decode($request->getContent(), true);
+    if (json_last_error() || ! is_array($data)) {
+        return api_error(400, "We couldn't parse the provided json. " . json_last_error_msg());
+    }
+
+    $name = $request->route('name');
+    if (! $name) {
+        return api_error(400, 'No device group name provided');
+    }
+
+    $deviceGroup = ctype_digit($name) ? DeviceGroup::find($name) : DeviceGroup::where('name', $name)->first();
+
+    if (! $deviceGroup) {
+        return api_error(404, "Device group $name not found");
+    }
+
+    if ('static' != $deviceGroup->type) {
+        return api_error(422, 'Only static device group can have devices added');
+    }
+
+    $rules = [
+        'devices' => 'array',
+        'devices.*' => 'integer',
+    ];
+
+    $v = Validator::make($data, $rules);
+    if ($v->fails()) {
+        return api_error(422, $v->messages());
+    }
+
+    $deviceGroup->devices()->syncWithoutDetaching($data['devices']);
+
+    return api_success_noresult(200, 'Devices added');
+}
+
+function update_device_group_remove_devices(Illuminate\Http\Request $request)
+{
+    $data = json_decode($request->getContent(), true);
+    if (json_last_error() || ! is_array($data)) {
+        return api_error(400, "We couldn't parse the provided json. " . json_last_error_msg());
+    }
+
+    $name = $request->route('name');
+    if (! $name) {
+        return api_error(400, 'No device group name provided');
+    }
+
+    $deviceGroup = ctype_digit($name) ? DeviceGroup::find($name) : DeviceGroup::where('name', $name)->first();
+
+    if (! $deviceGroup) {
+        return api_error(404, "Device group $name not found");
+    }
+
+    if ('static' != $deviceGroup->type) {
+        return api_error(422, 'Only static device group can have devices added');
+    }
+
+    $rules = [
+        'devices' => 'array',
+        'devices.*' => 'integer',
+    ];
+
+    $v = Validator::make($data, $rules);
+    if ($v->fails()) {
+        return api_error(422, $v->messages());
+    }
+
+    $deviceGroup->devices()->detach($data['devices']);
+
+    return api_success_noresult(200, 'Devices removed');
+}
+
 function get_device_groups(Illuminate\Http\Request $request)
 {
     $hostname = $request->route('hostname');
diff --git a/routes/api.php b/routes/api.php
index e2c6893ed7..48e1f2aece 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -68,6 +68,8 @@ Route::prefix('v0')->namespace('\App\Api\Controllers')->group(function () {
         });
 
         Route::prefix('devicegroups')->group(function () {
+            Route::post('{name}/devices', 'LegacyApiController@update_device_group_add_devices')->name('update_device_group_add_devices');
+            Route::delete('{name}/devices', 'LegacyApiController@update_device_group_remove_devices')->name('update_device_group_remove_devices');
             Route::post('{name}/maintenance', 'LegacyApiController@maintenance_devicegroup')->name('maintenance_devicegroup');
         });