diff --git a/backend/src/Squidex.Domain.Apps.Events/Apps/AppClientRenamed.cs b/backend/src/Migrations/OldEvents/AppClientRenamed.cs
similarity index 55%
rename from backend/src/Squidex.Domain.Apps.Events/Apps/AppClientRenamed.cs
rename to backend/src/Migrations/OldEvents/AppClientRenamed.cs
index dcb22ea51..31f1ad9d0 100644
--- a/backend/src/Squidex.Domain.Apps.Events/Apps/AppClientRenamed.cs
+++ b/backend/src/Migrations/OldEvents/AppClientRenamed.cs
@@ -5,15 +5,26 @@
 //  All rights reserved. Licensed under the MIT license.
 // ==========================================================================
 
+using Squidex.Domain.Apps.Events;
 using Squidex.Infrastructure.EventSourcing;
+using Squidex.Infrastructure.Migrations;
+using Squidex.Infrastructure.Reflection;
+using AppClientUpdatedV2 = Squidex.Domain.Apps.Events.Apps.AppClientUpdated;
 
-namespace Squidex.Domain.Apps.Events.Apps
+namespace Migrations.OldEvents
 {
     [EventType(nameof(AppClientRenamed))]
-    public sealed class AppClientRenamed : AppEvent
+    public sealed class AppClientRenamed : AppEvent, IMigrated<IEvent>
     {
         public string Id { get; set; }
 
         public string Name { get; set; }
+
+        public IEvent Migrate()
+        {
+            var result = SimpleMapper.Map(this, new AppClientUpdatedV2());
+
+            return result;
+        }
     }
 }
diff --git a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppClient.cs b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppClient.cs
index 687d59849..58e607039 100644
--- a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppClient.cs
+++ b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppClient.cs
@@ -17,7 +17,9 @@ namespace Squidex.Domain.Apps.Core.Apps
 
         public string Secret { get; }
 
-        public AppClient(string name, string secret, string role)
+        public bool AllowAnonymous { get; set; }
+
+        public AppClient(string name, string secret, string role, bool allowAnonymous)
             : base(name)
         {
             Guard.NotNullOrEmpty(secret, nameof(secret));
@@ -26,22 +28,14 @@ namespace Squidex.Domain.Apps.Core.Apps
             Role = role;
 
             Secret = secret;
-        }
-
-        [Pure]
-        public AppClient Update(string newRole)
-        {
-            Guard.NotNullOrEmpty(newRole, nameof(newRole));
 
-            return new AppClient(Name, Secret, newRole);
+            AllowAnonymous = allowAnonymous;
         }
 
         [Pure]
-        public AppClient Rename(string newName)
+        public AppClient Update(string? name, string? role, bool? allowAnonymous)
         {
-            Guard.NotNullOrEmpty(newName, nameof(newName));
-
-            return new AppClient(newName, Secret, Role);
+            return new AppClient(name.Or(Name), Secret, role.Or(Role), allowAnonymous ?? AllowAnonymous);
         }
     }
 }
diff --git a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppClients.cs b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppClients.cs
index e8caa2f28..cb6e38679 100644
--- a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppClients.cs
+++ b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppClients.cs
@@ -53,11 +53,11 @@ namespace Squidex.Domain.Apps.Core.Apps
                 throw new ArgumentException("Id already exists.", nameof(id));
             }
 
-            return With<AppClients>(id, new AppClient(id, secret, Role.Editor));
+            return With<AppClients>(id, new AppClient(id, secret, Role.Editor, false));
         }
 
         [Pure]
-        public AppClients Rename(string id, string newName)
+        public AppClients Update(string id, string? name = null, string? role = null, bool? allowAnonymous = false)
         {
             Guard.NotNullOrEmpty(id, nameof(id));
 
@@ -66,20 +66,7 @@ namespace Squidex.Domain.Apps.Core.Apps
                 return this;
             }
 
-            return With<AppClients>(id, client.Rename(newName));
-        }
-
-        [Pure]
-        public AppClients Update(string id, string role)
-        {
-            Guard.NotNullOrEmpty(id, nameof(id));
-
-            if (!TryGetValue(id, out var client))
-            {
-                return this;
-            }
-
-            return With<AppClients>(id, client.Update(role));
+            return With<AppClients>(id, client.Update(name, role, allowAnonymous));
         }
     }
 }
diff --git a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs
index a4c10d824..7deb3f55b 100644
--- a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs
+++ b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs
@@ -28,9 +28,9 @@ namespace Squidex.Domain.Apps.Core.Apps
         }
 
         [Pure]
-        public AppPattern Update(string newName, string newPattern, string? newMessage)
+        public AppPattern Update(string? name, string? pattern, string? message)
         {
-            return new AppPattern(newName, newPattern, newMessage);
+            return new AppPattern(name.Or(Name), pattern.Or(Pattern), message);
         }
     }
 }
diff --git a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs
index 294d1ccc0..606765773 100644
--- a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs
+++ b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs
@@ -8,7 +8,6 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics.Contracts;
-using Squidex.Infrastructure;
 using Squidex.Infrastructure.Collections;
 
 namespace Squidex.Domain.Apps.Core.Apps
@@ -41,11 +40,8 @@ namespace Squidex.Domain.Apps.Core.Apps
         }
 
         [Pure]
-        public AppPatterns Update(Guid id, string name, string pattern, string? message = null)
+        public AppPatterns Update(Guid id, string? name = null, string? pattern = null, string? message = null)
         {
-            Guard.NotNullOrEmpty(name, nameof(name));
-            Guard.NotNullOrEmpty(pattern, nameof(pattern));
-
             if (!TryGetValue(id, out var appPattern))
             {
                 return this;
diff --git a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/Json/AppClientsConverter.cs b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/Json/AppClientsConverter.cs
index a03bba8d5..217705ea3 100644
--- a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/Json/AppClientsConverter.cs
+++ b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/Json/AppClientsConverter.cs
@@ -17,11 +17,11 @@ namespace Squidex.Domain.Apps.Core.Apps.Json
     {
         protected override void WriteValue(JsonWriter writer, AppClients value, JsonSerializer serializer)
         {
-            var json = new Dictionary<string, JsonAppClient>(value.Count);
+            var json = new Dictionary<string, AppClient>(value.Count);
 
-            foreach (var (key, appClient) in value)
+            foreach (var (key, client) in value)
             {
-                json.Add(key, new JsonAppClient(appClient));
+                json.Add(key, client);
             }
 
             serializer.Serialize(writer, json);
@@ -29,9 +29,9 @@ namespace Squidex.Domain.Apps.Core.Apps.Json
 
         protected override AppClients ReadValue(JsonReader reader, Type objectType, JsonSerializer serializer)
         {
-            var json = serializer.Deserialize<Dictionary<string, JsonAppClient>>(reader)!;
+            var json = serializer.Deserialize<Dictionary<string, AppClient>>(reader)!;
 
-            return new AppClients(json.ToDictionary(x => x.Key, x => x.Value.ToClient()));
+            return new AppClients(json);
         }
     }
 }
diff --git a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/Json/JsonAppClient.cs b/backend/src/Squidex.Domain.Apps.Core.Model/Apps/Json/JsonAppClient.cs
deleted file mode 100644
index a3380c03c..000000000
--- a/backend/src/Squidex.Domain.Apps.Core.Model/Apps/Json/JsonAppClient.cs
+++ /dev/null
@@ -1,38 +0,0 @@
-// ==========================================================================
-//  Squidex Headless CMS
-// ==========================================================================
-//  Copyright (c) Squidex UG (haftungsbeschränkt)
-//  All rights reserved. Licensed under the MIT license.
-// ==========================================================================
-
-using Newtonsoft.Json;
-using Squidex.Infrastructure.Reflection;
-
-namespace Squidex.Domain.Apps.Core.Apps.Json
-{
-    public class JsonAppClient
-    {
-        [JsonProperty]
-        public string Name { get; set; }
-
-        [JsonProperty]
-        public string Secret { get; set; }
-
-        [JsonProperty]
-        public string Role { get; set; }
-
-        public JsonAppClient()
-        {
-        }
-
-        public JsonAppClient(AppClient client)
-        {
-            SimpleMapper.Map(client, this);
-        }
-
-        public AppClient ToClient()
-        {
-            return new AppClient(Name, Secret, Role);
-        }
-    }
-}
diff --git a/backend/src/Squidex.Domain.Apps.Entities/Apps/AppDomainObject.cs b/backend/src/Squidex.Domain.Apps.Entities/Apps/AppDomainObject.cs
index 0da6580e0..f26b10311 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Apps/AppDomainObject.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/Apps/AppDomainObject.cs
@@ -341,19 +341,6 @@ namespace Squidex.Domain.Apps.Entities.Apps
             }
         }
 
-        public void UpdateClient(UpdateClient command)
-        {
-            if (!string.IsNullOrWhiteSpace(command.Name))
-            {
-                RaiseEvent(SimpleMapper.Map(command, new AppClientRenamed()));
-            }
-
-            if (command.Role != null)
-            {
-                RaiseEvent(SimpleMapper.Map(command, new AppClientUpdated { Role = command.Role }));
-            }
-        }
-
         public void ChangePlan(ChangePlan command)
         {
             if (string.Equals(appPlansProvider.GetFreePlan()?.Id, command.PlanId))
@@ -371,6 +358,11 @@ namespace Squidex.Domain.Apps.Entities.Apps
             RaiseEvent(SimpleMapper.Map(command, new AppUpdated()));
         }
 
+        public void UpdateClient(UpdateClient command)
+        {
+            RaiseEvent(SimpleMapper.Map(command, new AppClientUpdated()));
+        }
+
         public void UploadImage(UploadAppImage command)
         {
             RaiseEvent(SimpleMapper.Map(command, new AppImageUploaded { Image = new AppImage(command.File.MimeType) }));
diff --git a/backend/src/Squidex.Domain.Apps.Entities/Apps/AppHistoryEventsCreator.cs b/backend/src/Squidex.Domain.Apps.Entities/Apps/AppHistoryEventsCreator.cs
index ed1487a9b..39eaf5c36 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Apps/AppHistoryEventsCreator.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/Apps/AppHistoryEventsCreator.cs
@@ -35,9 +35,6 @@ namespace Squidex.Domain.Apps.Entities.Apps
             AddEventMessage<AppClientUpdated>(
                 "updated client {[Id]}");
 
-            AddEventMessage<AppClientRenamed>(
-                "renamed client {[Id]} to {[Name]}");
-
             AddEventMessage<AppPlanChanged>(
                 "changed plan to {[Plan]}");
 
@@ -85,8 +82,8 @@ namespace Squidex.Domain.Apps.Entities.Apps
                     return CreateContributorsEvent(e, e.ContributorId);
                 case AppClientAttached e:
                     return CreateClientsEvent(e, e.Id);
-                case AppClientRenamed e:
-                    return CreateClientsEvent(e, e.Id, ClientName(e));
+                case AppClientUpdated e:
+                    return CreateClientsEvent(e, e.Id);
                 case AppClientRevoked e:
                     return CreateClientsEvent(e, e.Id);
                 case AppLanguageAdded e:
@@ -138,9 +135,9 @@ namespace Squidex.Domain.Apps.Entities.Apps
             return ForEvent(e, "settings.patterns").Param("PatternId", id).Param("Name", name);
         }
 
-        private HistoryEvent CreateClientsEvent(IEvent e, string id, string? name = null)
+        private HistoryEvent CreateClientsEvent(IEvent e, string id)
         {
-            return ForEvent(e, "settings.clients").Param("Id", id).Param("Name", name);
+            return ForEvent(e, "settings.clients").Param("Id", id);
         }
 
         private HistoryEvent CreatePlansEvent(IEvent e, string? plan = null)
@@ -152,10 +149,5 @@ namespace Squidex.Domain.Apps.Entities.Apps
         {
             return Task.FromResult(CreateEvent(@event.Payload));
         }
-
-        private static string ClientName(AppClientRenamed e)
-        {
-            return !string.IsNullOrWhiteSpace(e.Name) ? e.Name : e.Id;
-        }
     }
 }
\ No newline at end of file
diff --git a/backend/src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdateClient.cs b/backend/src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdateClient.cs
index 854242be3..474db16b0 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdateClient.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdateClient.cs
@@ -11,8 +11,10 @@ namespace Squidex.Domain.Apps.Entities.Apps.Commands
     {
         public string Id { get; set; }
 
-        public string Name { get; set; }
+        public string? Name { get; set; }
 
         public string? Role { get; set; }
+
+        public bool? AllowAnonymous { get; set; }
     }
 }
diff --git a/backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppClients.cs b/backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppClients.cs
index a3828ffaf..1bebbfac7 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppClients.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/Apps/Guards/GuardAppClients.cs
@@ -59,11 +59,6 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
                     e(Not.Defined("Client id"), nameof(command.Id));
                 }
 
-                if (string.IsNullOrWhiteSpace(command.Name) && command.Role == null)
-                {
-                    e(Not.DefinedOr("name", "role"), nameof(command.Name), nameof(command.Role));
-                }
-
                 if (command.Role != null && !roles.Contains(command.Role))
                 {
                     e(Not.Valid("role"), nameof(command.Role));
diff --git a/backend/src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs b/backend/src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs
index 742608a9b..7c7d15332 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs
@@ -85,10 +85,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.State
                     return UpdateClients(e, (ev, c) => c.Add(ev.Id, ev.Secret));
 
                 case AppClientUpdated e:
-                    return UpdateClients(e, (ev, c) => c.Update(ev.Id, ev.Role));
-
-                case AppClientRenamed e:
-                    return UpdateClients(e, (ev, c) => c.Rename(ev.Id, ev.Name));
+                    return UpdateClients(e, (ev, c) => c.Update(ev.Id, ev.Name, ev.Role, ev.AllowAnonymous));
 
                 case AppClientRevoked e:
                     return UpdateClients(e, (ev, c) => c.Revoke(ev.Id));
diff --git a/backend/src/Squidex.Domain.Apps.Events/Apps/AppClientUpdated.cs b/backend/src/Squidex.Domain.Apps.Events/Apps/AppClientUpdated.cs
index e09e4f6cb..519c02e26 100644
--- a/backend/src/Squidex.Domain.Apps.Events/Apps/AppClientUpdated.cs
+++ b/backend/src/Squidex.Domain.Apps.Events/Apps/AppClientUpdated.cs
@@ -14,6 +14,10 @@ namespace Squidex.Domain.Apps.Events.Apps
     {
         public string Id { get; set; }
 
-        public string Role { get; set; }
+        public string? Name { get; set; }
+
+        public string? Role { get; set; }
+
+        public bool? AllowAnonymous { get; set; }
     }
 }
diff --git a/backend/src/Squidex.Infrastructure/StringExtensions.cs b/backend/src/Squidex.Infrastructure/StringExtensions.cs
index a3acbab4e..e89ce28fd 100644
--- a/backend/src/Squidex.Infrastructure/StringExtensions.cs
+++ b/backend/src/Squidex.Infrastructure/StringExtensions.cs
@@ -542,6 +542,11 @@ namespace Squidex.Infrastructure
             return value != null && PropertyNameRegex.IsMatch(value);
         }
 
+        public static string Or(this string? value, string fallback)
+        {
+            return !string.IsNullOrWhiteSpace(value) ? value.Trim() : fallback;
+        }
+
         public static string WithFallback(this string? value, string fallback)
         {
             return !string.IsNullOrWhiteSpace(value) ? value.Trim() : fallback;
diff --git a/backend/src/Squidex.Infrastructure/Validation/Not.cs b/backend/src/Squidex.Infrastructure/Validation/Not.cs
index f10a78a69..a24767ca0 100644
--- a/backend/src/Squidex.Infrastructure/Validation/Not.cs
+++ b/backend/src/Squidex.Infrastructure/Validation/Not.cs
@@ -71,12 +71,6 @@ namespace Squidex.Infrastructure.Validation
             return $"{Upper(property)} is not a valid value.";
         }
 
-        [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        public static string DefinedOr(string property1, string property2)
-        {
-            return $"Either {Lower(property1)} or {Lower(property2)} must be defined.";
-        }
-
         private static string Lower(string property)
         {
             if (char.IsUpper(property[0]))
diff --git a/backend/src/Squidex.Web/ApiPermissionAttribute.cs b/backend/src/Squidex.Web/ApiPermissionAttribute.cs
index edcee1427..c48fd41d8 100644
--- a/backend/src/Squidex.Web/ApiPermissionAttribute.cs
+++ b/backend/src/Squidex.Web/ApiPermissionAttribute.cs
@@ -15,7 +15,7 @@ using Squidex.Shared;
 
 namespace Squidex.Web
 {
-    public sealed class ApiPermissionAttribute : AuthorizeAttribute, IAsyncActionFilter
+    public sealed class ApiPermissionAttribute : AuthorizeAttribute, IAsyncActionFilter, IAllowAnonymous
     {
         private readonly string[] permissionIds;
 
diff --git a/backend/src/Squidex.Web/Pipeline/AppResolver.cs b/backend/src/Squidex.Web/Pipeline/AppResolver.cs
index bd6ce35ad..54c8a92ff 100644
--- a/backend/src/Squidex.Web/Pipeline/AppResolver.cs
+++ b/backend/src/Squidex.Web/Pipeline/AppResolver.cs
@@ -58,6 +58,11 @@ namespace Squidex.Web.Pipeline
                     (role, permissions) = FindByOpenIdClient(app, user);
                 }
 
+                if (permissions == null)
+                {
+                    (role, permissions) = FindAnonymousClient(app);
+                }
+
                 if (permissions != null)
                 {
                     var identity = user.Identities.First();
@@ -77,7 +82,15 @@ namespace Squidex.Web.Pipeline
 
                 if (!AllowAnonymous(context) && !HasPermission(appName, requestContext))
                 {
-                    context.Result = new NotFoundResult();
+                    if (string.IsNullOrWhiteSpace(user.Identity.AuthenticationType))
+                    {
+                        context.Result = new UnauthorizedResult();
+                    }
+                    else
+                    {
+                        context.Result = new NotFoundResult();
+                    }
+
                     return;
                 }
 
@@ -136,6 +149,18 @@ namespace Squidex.Web.Pipeline
             return (null, null);
         }
 
+        private static (string?, PermissionSet?) FindAnonymousClient(IAppEntity app)
+        {
+            var client = app.Clients.Values.FirstOrDefault(x => x.AllowAnonymous);
+
+            if (client != null && app.Roles.TryGet(app.Name, client.Role, out var role))
+            {
+                return (client.Role, role.Permissions);
+            }
+
+            return (null, null);
+        }
+
         private static (string?, PermissionSet?) FindByOpenIdSubject(IAppEntity app, ClaimsPrincipal user)
         {
             var subjectId = user.OpenIdSubject();
diff --git a/backend/src/Squidex/Areas/Api/Controllers/Apps/Models/UpdateClientDto.cs b/backend/src/Squidex/Areas/Api/Controllers/Apps/Models/UpdateClientDto.cs
index 44e949983..9f7cd207f 100644
--- a/backend/src/Squidex/Areas/Api/Controllers/Apps/Models/UpdateClientDto.cs
+++ b/backend/src/Squidex/Areas/Api/Controllers/Apps/Models/UpdateClientDto.cs
@@ -17,13 +17,18 @@ namespace Squidex.Areas.Api.Controllers.Apps.Models
         /// The new display name of the client.
         /// </summary>
         [StringLength(20)]
-        public string Name { get; set; }
+        public string? Name { get; set; }
 
         /// <summary>
         /// The role of the client.
         /// </summary>
         public string? Role { get; set; }
 
+        /// <summary>
+        /// True to allow anonymous access without an access token for this client.
+        /// </summary>
+        public bool? AllowAnonymous { get; set; }
+
         public UpdateClient ToCommand(string clientId)
         {
             return SimpleMapper.Map(this, new UpdateClient { Id = clientId });
diff --git a/backend/tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppClientJsonTests.cs b/backend/tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppClientJsonTests.cs
index 5a2ac24a7..ec187aed6 100644
--- a/backend/tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppClientJsonTests.cs
+++ b/backend/tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppClientJsonTests.cs
@@ -23,10 +23,12 @@ namespace Squidex.Domain.Apps.Core.Model.Apps
             clients = clients.Add("3", "my-secret");
             clients = clients.Add("4", "my-secret");
 
-            clients = clients.Update("3", Role.Editor);
+            clients = clients.Update("3", role: Role.Editor);
 
-            clients = clients.Rename("3", "My Client 3");
-            clients = clients.Rename("2", "My Client 2");
+            clients = clients.Update("3", name: "My Client 3");
+            clients = clients.Update("2", name: "My Client 2");
+
+            clients = clients.Update("1", allowAnonymous: true);
 
             clients = clients.Revoke("4");
 
diff --git a/backend/tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppClientsTests.cs b/backend/tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppClientsTests.cs
index 1e3ba2b96..252284ebb 100644
--- a/backend/tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppClientsTests.cs
+++ b/backend/tests/Squidex.Domain.Apps.Core.Tests/Model/Apps/AppClientsTests.cs
@@ -23,15 +23,15 @@ namespace Squidex.Domain.Apps.Core.Model.Apps
         {
             var clients_1 = clients_0.Add("2", "my-secret");
 
-            clients_1["2"].Should().BeEquivalentTo(new AppClient("2", "my-secret", Role.Editor));
+            clients_1["2"].Should().BeEquivalentTo(new AppClient("2", "my-secret", Role.Editor, false));
         }
 
         [Fact]
         public void Should_assign_clients_with_permission()
         {
-            var clients_1 = clients_0.Add("2", new AppClient("my-name", "my-secret", Role.Reader));
+            var clients_1 = clients_0.Add("2", new AppClient("my-name", "my-secret", Role.Reader, false));
 
-            clients_1["2"].Should().BeEquivalentTo(new AppClient("my-name", "my-secret", Role.Reader));
+            clients_1["2"].Should().BeEquivalentTo(new AppClient("my-name", "my-secret", Role.Reader, false));
         }
 
         [Fact]
@@ -47,45 +47,37 @@ namespace Squidex.Domain.Apps.Core.Model.Apps
         {
             var clients_1 = clients_0.Add("2", "my-secret");
 
-            clients_1.Add("2", new AppClient("my-name", "my-secret", "my-role"));
+            clients_1.Add("2", new AppClient("my-name", "my-secret", "my-role", false));
         }
 
         [Fact]
-        public void Should_rename_client()
+        public void Should_update_client_with_role()
         {
-            var clients_1 = clients_0.Rename("1", "new-name");
+            var client_1 = clients_0.Update("1", role: Role.Reader);
 
-            clients_1["1"].Should().BeEquivalentTo(new AppClient("new-name", "my-secret", Role.Editor));
+            client_1["1"].Should().BeEquivalentTo(new AppClient("1", "my-secret", Role.Reader, false));
         }
 
         [Fact]
-        public void Should_return_same_clients_if_client_is_updated_with_the_same_values()
+        public void Should_update_client_with_name()
         {
-            var clients_1 = clients_0.Rename("2", "2");
+            var client_1 = clients_0.Update("1", name: "New-Name");
 
-            Assert.Same(clients_0, clients_1);
-        }
-
-        [Fact]
-        public void Should_return_same_clients_if_client_to_rename_not_found()
-        {
-            var clients_1 = clients_0.Rename("2", "new-name");
-
-            Assert.Same(clients_0, clients_1);
+            client_1["1"].Should().BeEquivalentTo(new AppClient("New-Name", "my-secret", Role.Editor, false));
         }
 
         [Fact]
-        public void Should_update_client()
+        public void Should_update_client_with_allow_anonymous()
         {
-            var client_1 = clients_0.Update("1", Role.Reader);
+            var client_1 = clients_0.Update("1", allowAnonymous: true);
 
-            client_1["1"].Should().BeEquivalentTo(new AppClient("1", "my-secret", Role.Reader));
+            client_1["1"].Should().BeEquivalentTo(new AppClient("1", "my-secret", Role.Editor, true));
         }
 
         [Fact]
         public void Should_return_same_clients_if_client_to_update_not_found()
         {
-            var clients_1 = clients_0.Update("2", Role.Reader);
+            var clients_1 = clients_0.Update("2", role: Role.Reader);
 
             Assert.Same(clients_0, clients_1);
         }
diff --git a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs
index e6b0e5794..e9d17f017 100644
--- a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs
+++ b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs
@@ -406,8 +406,7 @@ namespace Squidex.Domain.Apps.Entities.Apps
 
             LastEvents
                 .ShouldHaveSameEvents(
-                    CreateEvent(new AppClientRenamed { Id = clientId, Name = clientNewName }),
-                    CreateEvent(new AppClientUpdated { Id = clientId, Role = Role.Developer })
+                    CreateEvent(new AppClientUpdated { Id = clientId, Name = clientNewName, Role = Role.Developer })
                 );
         }
 
diff --git a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppClientsTests.cs b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppClientsTests.cs
index 80bf6162f..64d478b6a 100644
--- a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppClientsTests.cs
+++ b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppClientsTests.cs
@@ -95,17 +95,6 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
             Assert.Throws<DomainObjectNotFoundException>(() => GuardAppClients.CanUpdate(clients_0, command, Roles.Empty));
         }
 
-        [Fact]
-        public void UpdateClient_should_throw_exception_if_client_has_no_name_and_role()
-        {
-            var command = new UpdateClient { Id = "ios" };
-
-            var clients_1 = clients_0.Add("ios", "secret");
-
-            ValidationAssert.Throws(() => GuardAppClients.CanUpdate(clients_1, command, roles),
-                new ValidationError("Either name or role must be defined.", "Name", "Role"));
-        }
-
         [Fact]
         public void UpdateClient_should_throw_exception_if_client_has_invalid_role()
         {
diff --git a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppRolesTests.cs b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppRolesTests.cs
index ed688e8f4..59cb5572e 100644
--- a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppRolesTests.cs
+++ b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Apps/Guards/GuardAppRolesTests.cs
@@ -86,7 +86,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Guards
 
             var command = new DeleteRole { Name = roleName };
 
-            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(roles_1, command, contributors, clients.Add("1", new AppClient("client", "1", roleName))),
+            ValidationAssert.Throws(() => GuardAppRoles.CanDelete(roles_1, command, contributors, clients.Add("1", new AppClient("client", "1", roleName, false))),
                 new ValidationError("Cannot remove a role when a client is assigned."));
         }
 
diff --git a/backend/tests/Squidex.Web.Tests/Pipeline/AppResolverTests.cs b/backend/tests/Squidex.Web.Tests/Pipeline/AppResolverTests.cs
index 2b25a85b0..b0c06d516 100644
--- a/backend/tests/Squidex.Web.Tests/Pipeline/AppResolverTests.cs
+++ b/backend/tests/Squidex.Web.Tests/Pipeline/AppResolverTests.cs
@@ -34,16 +34,12 @@ namespace Squidex.Web.Pipeline
         private readonly ActionContext actionContext;
         private readonly ActionExecutingContext actionExecutingContext;
         private readonly ActionExecutionDelegate next;
-        private readonly ClaimsIdentity userIdentiy = new ClaimsIdentity();
-        private readonly ClaimsPrincipal user;
         private readonly string appName = "my-app";
         private readonly AppResolver sut;
         private bool isNextCalled;
 
         public AppResolverTests()
         {
-            user = new ClaimsPrincipal(userIdentiy);
-
             actionContext = new ActionContext(httpContext, new RouteData(), new ActionDescriptor
             {
                 EndpointMetadata = new List<object>()
@@ -51,7 +47,6 @@ namespace Squidex.Web.Pipeline
 
             actionExecutingContext = new ActionExecutingContext(actionContext, new List<IFilterMetadata>(), new Dictionary<string, object>(), this);
             actionExecutingContext.HttpContext = httpContext;
-            actionExecutingContext.HttpContext.User = user;
             actionExecutingContext.RouteData.Values["app"] = appName;
 
             next = () =>
@@ -67,6 +62,8 @@ namespace Squidex.Web.Pipeline
         [Fact]
         public async Task Should_return_not_found_if_app_not_found()
         {
+            SetupUser();
+
             A.CallTo(() => appProvider.GetAppAsync(appName, false))
                 .Returns(Task.FromResult<IAppEntity?>(null));
 
@@ -76,13 +73,31 @@ namespace Squidex.Web.Pipeline
             Assert.False(isNextCalled);
         }
 
+        [Fact]
+        public async Task Should_return_401_if_user_is_anonymous()
+        {
+            var user = SetupUser(null);
+
+            var app = CreateApp(appName);
+
+            A.CallTo(() => appProvider.GetAppAsync(appName, false))
+                .Returns(app);
+
+            await sut.OnActionExecutionAsync(actionExecutingContext, next);
+
+            Assert.IsType<UnauthorizedResult>(actionExecutingContext.Result);
+            Assert.False(isNextCalled);
+        }
+
         [Fact]
         public async Task Should_resolve_app_from_user()
         {
+            var user = SetupUser();
+
             var app = CreateApp(appName, appUser: "user1");
 
-            userIdentiy.AddClaim(new Claim(OpenIdClaims.Subject, "user1"));
-            userIdentiy.AddClaim(new Claim(SquidexClaimTypes.Permissions, "squidex.apps.my-app"));
+            user.AddClaim(new Claim(OpenIdClaims.Subject, "user1"));
+            user.AddClaim(new Claim(SquidexClaimTypes.Permissions, "squidex.apps.my-app"));
 
             A.CallTo(() => appProvider.GetAppAsync(appName, true))
                 .Returns(app);
@@ -97,9 +112,28 @@ namespace Squidex.Web.Pipeline
         [Fact]
         public async Task Should_resolve_app_from_client()
         {
+            var user = SetupUser();
+
+            user.AddClaim(new Claim(OpenIdClaims.ClientId, $"{appName}:client1"));
+
             var app = CreateApp(appName, appClient: "client1");
 
-            userIdentiy.AddClaim(new Claim(OpenIdClaims.ClientId, $"{appName}:client1"));
+            A.CallTo(() => appProvider.GetAppAsync(appName, true))
+                .Returns(app);
+
+            await sut.OnActionExecutionAsync(actionExecutingContext, next);
+
+            Assert.Same(app, httpContext.Context().App);
+            Assert.True(user.Claims.Count() > 2);
+            Assert.True(isNextCalled);
+        }
+
+        [Fact]
+        public async Task Should_resolve_app_from_anonymous_client()
+        {
+            var user = SetupUser();
+
+            var app = CreateApp(appName, appClient: "client1", allowAnonymous: true);
 
             A.CallTo(() => appProvider.GetAppAsync(appName, true))
                 .Returns(app);
@@ -112,12 +146,14 @@ namespace Squidex.Web.Pipeline
         }
 
         [Fact]
-        public async Task Should_resolve_app_if_anonymous_but_not_permissions()
+        public async Task Should_resolve_app_if_action_allows_anonymous_but_user_has_no_permissions()
         {
-            var app = CreateApp(appName);
+            var user = SetupUser();
 
-            userIdentiy.AddClaim(new Claim(OpenIdClaims.ClientId, $"{appName}:client1"));
-            userIdentiy.AddClaim(new Claim(SquidexClaimTypes.Permissions, "squidex.apps.other-app"));
+            user.AddClaim(new Claim(OpenIdClaims.ClientId, $"{appName}:client1"));
+            user.AddClaim(new Claim(SquidexClaimTypes.Permissions, "squidex.apps.other-app"));
+
+            var app = CreateApp(appName);
 
             actionContext.ActionDescriptor.EndpointMetadata.Add(new AllowAnonymousAttribute());
 
@@ -134,10 +170,12 @@ namespace Squidex.Web.Pipeline
         [Fact]
         public async Task Should_return_not_found_if_user_has_no_permissions()
         {
-            var app = CreateApp(appName);
+            var user = SetupUser();
+
+            user.AddClaim(new Claim(OpenIdClaims.ClientId, $"{appName}:client1"));
+            user.AddClaim(new Claim(SquidexClaimTypes.Permissions, "squidex.apps.other-app"));
 
-            userIdentiy.AddClaim(new Claim(OpenIdClaims.ClientId, $"{appName}:client1"));
-            userIdentiy.AddClaim(new Claim(SquidexClaimTypes.Permissions, "squidex.apps.other-app"));
+            var app = CreateApp(appName);
 
             A.CallTo(() => appProvider.GetAppAsync(appName, false))
                 .Returns(app);
@@ -151,9 +189,11 @@ namespace Squidex.Web.Pipeline
         [Fact]
         public async Task Should_return_not_found_if_client_is_from_another_app()
         {
-            var app = CreateApp(appName, appClient: "client1");
+            var user = SetupUser();
+
+            user.AddClaim(new Claim(OpenIdClaims.ClientId, "other:client1"));
 
-            userIdentiy.AddClaim(new Claim(OpenIdClaims.ClientId, "other:client1"));
+            var app = CreateApp(appName, appClient: "client1");
 
             A.CallTo(() => appProvider.GetAppAsync(appName, false))
                 .Returns(app);
@@ -177,7 +217,17 @@ namespace Squidex.Web.Pipeline
                 .MustNotHaveHappened();
         }
 
-        private static IAppEntity CreateApp(string name, string? appUser = null, string? appClient = null)
+        private ClaimsIdentity SetupUser(string? type = "OIDC")
+        {
+            var userIdentity = new ClaimsIdentity(type);
+            var userPrincipal = new ClaimsPrincipal(userIdentity);
+
+            actionExecutingContext.HttpContext.User = userPrincipal;
+
+            return userIdentity;
+        }
+
+        private static IAppEntity CreateApp(string name, string? appUser = null, string? appClient = null, bool? allowAnonymous = null)
         {
             var appEntity = A.Fake<IAppEntity>();
 
@@ -195,7 +245,7 @@ namespace Squidex.Web.Pipeline
             if (appClient != null)
             {
                 A.CallTo(() => appEntity.Clients)
-                    .Returns(AppClients.Empty.Add(appClient, "secret"));
+                    .Returns(AppClients.Empty.Add(appClient, "secret").Update(appClient, allowAnonymous: allowAnonymous));
             }
             else
             {
diff --git a/frontend/app/features/settings/pages/clients/client.component.html b/frontend/app/features/settings/pages/clients/client.component.html
index 5e9869ac5..491cabef6 100644
--- a/frontend/app/features/settings/pages/clients/client.component.html
+++ b/frontend/app/features/settings/pages/clients/client.component.html
@@ -64,6 +64,25 @@
                 </div>
                 <div class="col-auto cell-actions"></div>
             </div>
+            <div class="form-group row">
+                <div class="col cell-input offset-3">
+                    <div class="form-check">
+                        <input class="form-check-input" type="checkbox" id="{{client.id}}_allowAnonymous" 
+                            [disabled]="!client.canUpdate"
+                            [ngModel]="client.allowAnonymous"
+                            (ngModelChange)="updateAccess($event)" />
+            
+                        <label class="form-check-label" for="{{client.id}}_allowAnonymous">
+                            Allow anonymous access.
+                        </label>
+                    </div>
+        
+                    <sqx-form-hint>
+                        Allow access to the API without an access token to all resources that are configured via the role of this client. Do not give more than one client anonymous access.
+                    </sqx-form-hint>
+                </div>
+                <div class="col-auto cell-actions"></div>
+            </div>
         </div>
     </div>
 </div>
diff --git a/frontend/app/features/settings/pages/clients/client.component.ts b/frontend/app/features/settings/pages/clients/client.component.ts
index 044dba6c6..1b8cb4cfb 100644
--- a/frontend/app/features/settings/pages/clients/client.component.ts
+++ b/frontend/app/features/settings/pages/clients/client.component.ts
@@ -37,6 +37,10 @@ export class ClientComponent {
         this.clientsState.update(this.client, { role });
     }
 
+    public updateAccess(allowAnonymous: boolean) {
+        this.clientsState.update(this.client, { allowAnonymous });
+    }
+
     public rename(name: string) {
         this.clientsState.update(this.client, { name });
     }
diff --git a/frontend/app/shared/services/clients.service.spec.ts b/frontend/app/shared/services/clients.service.spec.ts
index 6c43c546a..6ef1eac31 100644
--- a/frontend/app/shared/services/clients.service.spec.ts
+++ b/frontend/app/shared/services/clients.service.spec.ts
@@ -165,6 +165,7 @@ describe('ClientsService', () => {
                 name: `Client ${id}`,
                 role: `Role${id}`,
                 secret: `secret${id}`,
+                allowAnonymous: true,
                 _links: {
                     update: { method: 'PUT', href: `/clients/id${id}` }
                 }
@@ -191,5 +192,5 @@ export function createClient(id: number) {
         update: { method: 'PUT', href: `/clients/id${id}` }
     };
 
-    return new ClientDto(links, `id${id}`,  `Client ${id}`, `secret${id}`, `Role${id}`);
+    return new ClientDto(links, `id${id}`,  `Client ${id}`, `secret${id}`, `Role${id}`, true);
 }
\ No newline at end of file
diff --git a/frontend/app/shared/services/clients.service.ts b/frontend/app/shared/services/clients.service.ts
index e90051fdc..2f065386a 100644
--- a/frontend/app/shared/services/clients.service.ts
+++ b/frontend/app/shared/services/clients.service.ts
@@ -29,7 +29,8 @@ export class ClientDto {
         public readonly id: string,
         public readonly name: string,
         public readonly secret: string,
-        public readonly role: string
+        public readonly role: string,
+        public readonly allowAnonymous: boolean
     ) {
         this._links = links;
 
@@ -53,6 +54,7 @@ export interface CreateClientDto {
 export interface UpdateClientDto {
     readonly name?: string;
     readonly role?: string;
+    readonly allowAnonymous?: boolean;
 }
 
 @Injectable()
@@ -144,7 +146,8 @@ function parseClients(response: any): ClientsPayload {
             item.id,
             item.name || item.id,
             item.secret,
-            item.role));
+            item.role,
+            item.allowAnonymous));
 
     const _links = response._links;