diff --git a/public/openapi/write/groups/slug/members.yaml b/public/openapi/write/groups/slug/members.yaml
index 706efceecf..324738b5fa 100644
--- a/public/openapi/write/groups/slug/members.yaml
+++ b/public/openapi/write/groups/slug/members.yaml
@@ -9,18 +9,31 @@ get:
       schema:
         type: string
       required: true
-      description: group slug (that also acts as its identifier) to check
+      description: a group slug (that also acts as its identifier)
       example: administrators
     - in: query
       name: 'query'
       schema:
         type: string
       required: false
-      description: A keyword search query
+      description: >
+        A keyword search query.
+
+        This parameter conflicts with `after`. If both are present, `after` is ignored.
       example: 'a'
+    - in: query
+      name: 'after'
+      schema:
+        type: string
+      required: false
+      description: >
+        Offset returned results.
+
+        This parameter conflicts with `query`. If both are present, this parameter is ignored.
+      example: '0'
   responses:
     '200':
-      description: matching user group members successfully listed
+      description: user group members successfully listed
       content:
         application/json:
           schema:
@@ -42,5 +55,10 @@ get:
                               type: boolean
                   matchCount:
                     type: number
+                    nullable: true
                   timing:
-                    type: string
\ No newline at end of file
+                    type: string
+                    nullable: true
+                  nextStart:
+                    type: number
+                    nullable: true
\ No newline at end of file
diff --git a/public/src/client/groups/list.js b/public/src/client/groups/list.js
index cef4dfc660..aa270bf7f4 100644
--- a/public/src/client/groups/list.js
+++ b/public/src/client/groups/list.js
@@ -36,7 +36,7 @@ define('forum/groups/list', [
 			return;
 		}
 
-		infinitescroll.loadMore('groups.loadMore', {
+		infinitescroll.loadMore('/groups', {
 			sort: $('#search-sort').val(),
 			after: $('[component="groups/container"]').attr('data-nextstart'),
 		}, function (data, done) {
diff --git a/public/src/client/groups/memberlist.js b/public/src/client/groups/memberlist.js
index 986257bf9a..3a2839cab3 100644
--- a/public/src/client/groups/memberlist.js
+++ b/public/src/client/groups/memberlist.js
@@ -92,10 +92,7 @@ define('forum/groups/memberlist', ['api', 'bootbox', 'alerts'], function (api, b
 		const searchEl = $('[component="groups/members/search"]');
 		searchEl.on('keyup', utils.debounce(function () {
 			const query = searchEl.val();
-			socket.emit('groups.searchMembers', {
-				groupName: groupName,
-				query: query,
-			}, function (err, results) {
+			api.get(`/groups/${groupName}/members`, { query }, function (err, results) {
 				if (err) {
 					return alerts.error(err);
 				}
@@ -125,8 +122,7 @@ define('forum/groups/memberlist', ['api', 'bootbox', 'alerts'], function (api, b
 		}
 
 		members.attr('loading', 1);
-		socket.emit('groups.loadMoreMembers', {
-			groupName: groupName,
+		api.get(`/groups/${groupName}/members`, {
 			after: members.attr('data-nextstart'),
 		}, function (err, data) {
 			if (err) {
diff --git a/src/api/groups.js b/src/api/groups.js
index 7c0186ac31..5372f386be 100644
--- a/src/api/groups.js
+++ b/src/api/groups.js
@@ -74,6 +74,7 @@ groupsAPI.delete = async function (caller, data) {
 };
 
 groupsAPI.listMembers = async (caller, data) => {
+	// v4 wishlist — search should paginate (with lru caching I guess) to match index listing behaviour
 	const groupName = await groups.getGroupNameByGroupSlug(data.slug);
 
 	await canSearchMembers(caller.uid, groupName);
@@ -81,11 +82,26 @@ groupsAPI.listMembers = async (caller, data) => {
 		throw new Error('[[error:no-privileges]]');
 	}
 
-	return await groups.searchMembers({
-		uid: caller.uid,
-		query: data.query,
-		groupName,
-	});
+	const { query } = data;
+	const after = parseInt(data.after || 0, 10);
+	let response;
+	if (query) {
+		response = await groups.searchMembers({
+			uid: caller.uid,
+			query,
+			groupName,
+		});
+		response.nextStart = null;
+	} else {
+		response = {
+			users: await groups.getOwnersAndMembers(groupName, caller.uid, after, after + 19),
+			nextStart: after + 20,
+			matchCount: null,
+			timing: null,
+		};
+	}
+
+	return response;
 };
 
 async function canSearchMembers(uid, groupName) {
diff --git a/src/socket.io/groups.js b/src/socket.io/groups.js
index 508078d4d3..760c6e7e14 100644
--- a/src/socket.io/groups.js
+++ b/src/socket.io/groups.js
@@ -53,16 +53,15 @@ SocketGroups.searchMembers = async (socket, data) => {
 };
 
 SocketGroups.loadMoreMembers = async (socket, data) => {
+	sockets.warnDeprecated(socket, 'GET /api/v3/groups/:groupName/members');
+
 	if (!data.groupName || !utils.isNumber(data.after) || parseInt(data.after, 10) < 0) {
 		throw new Error('[[error:invalid-data]]');
 	}
-	await canSearchMembers(socket.uid, data.groupName);
-	data.after = parseInt(data.after, 10);
-	const users = await groups.getOwnersAndMembers(data.groupName, socket.uid, data.after, data.after + 9);
-	return {
-		users: users,
-		nextStart: data.after + 10,
-	};
+	data.slug = slugify(data.groupName);
+	delete data.groupName;
+
+	return api.groups.listMembers(socket, data);
 };
 
 SocketGroups.getChatGroups = async (socket) => {
@@ -76,20 +75,6 @@ SocketGroups.getChatGroups = async (socket) => {
 	return groupsList.map(g => ({ name: g.name, displayName: g.displayName }));
 };
 
-async function canSearchMembers(uid, groupName) {
-	const [isHidden, isMember, hasAdminPrivilege, isGlobalMod, viewGroups] = await Promise.all([
-		groups.isHidden(groupName),
-		groups.isMember(uid, groupName),
-		privileges.admin.can('admin:groups', uid),
-		user.isGlobalModerator(uid),
-		privileges.global.can('view:groups', uid),
-	]);
-
-	if (!viewGroups || (isHidden && !isMember && !hasAdminPrivilege && !isGlobalMod)) {
-		throw new Error('[[error:no-privileges]]');
-	}
-}
-
 SocketGroups.cover = {};
 
 SocketGroups.cover.update = async (socket, data) => {