diff --git a/src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs b/src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs
index a893f5f8e..cfd0e6e8e 100644
--- a/src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs
+++ b/src/Squidex.Domain.Apps.Core.Model/Apps/AppPattern.cs
@@ -6,23 +6,16 @@
 //  All rights reserved.
 // ==========================================================================
 
-using System;
 using System.Diagnostics.Contracts;
 using Squidex.Infrastructure;
 
 namespace Squidex.Domain.Apps.Core.Apps
 {
-    public class AppPattern
+    public sealed class AppPattern
     {
-        private readonly Guid id;
         private readonly string name;
         private readonly string pattern;
-        private readonly string defaultMessage;
-
-        public Guid Id
-        {
-            get { return id; }
-        }
+        private readonly string message;
 
         public string Name
         {
@@ -34,29 +27,25 @@ namespace Squidex.Domain.Apps.Core.Apps
             get { return pattern; }
         }
 
-        public string DefaultMessage
+        public string Message
         {
-            get { return defaultMessage; }
+            get { return message; }
         }
 
-        public AppPattern(Guid id, string name, string pattern, string defaultMessage)
+        public AppPattern(string name, string pattern, string message)
         {
             Guard.NotNullOrEmpty(name, nameof(name));
             Guard.NotNullOrEmpty(pattern, nameof(pattern));
 
-            this.id = id;
             this.name = name;
             this.pattern = pattern;
-            this.defaultMessage = defaultMessage;
+            this.message = message;
         }
 
         [Pure]
         public AppPattern Update(string name, string pattern, string defaultMessage)
         {
-            Guard.NotNullOrEmpty(name, nameof(name));
-            Guard.NotNullOrEmpty(pattern, nameof(pattern));
-
-            return new AppPattern(this.id, name, pattern, defaultMessage);
+            return new AppPattern(name, pattern, defaultMessage);
         }
     }
 }
diff --git a/src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs b/src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs
index 465c2cf67..459ecc4a6 100644
--- a/src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs
+++ b/src/Squidex.Domain.Apps.Core.Model/Apps/AppPatterns.cs
@@ -27,9 +27,9 @@ namespace Squidex.Domain.Apps.Core.Apps
         }
 
         [Pure]
-        public AppPatterns Add(Guid id, string name, string pattern, string defaultMessage)
+        public AppPatterns Add(Guid id, string name, string pattern, string message)
         {
-            var newPattern = new AppPattern(id, name, pattern, defaultMessage);
+            var newPattern = new AppPattern(name, pattern, message);
 
             return new AppPatterns(Inner.Add(id, newPattern));
         }
@@ -41,7 +41,7 @@ namespace Squidex.Domain.Apps.Core.Apps
         }
 
         [Pure]
-        public AppPatterns Update(Guid id, string name, string pattern, string defaultMessage)
+        public AppPatterns Update(Guid id, string name, string pattern, string message)
         {
             Guard.NotNullOrEmpty(name, nameof(name));
             Guard.NotNullOrEmpty(pattern, nameof(pattern));
@@ -51,7 +51,7 @@ namespace Squidex.Domain.Apps.Core.Apps
                 return this;
             }
 
-            return new AppPatterns(Inner.SetItem(id, appPattern.Update(name, pattern, defaultMessage)));
+            return new AppPatterns(Inner.SetItem(id, appPattern.Update(name, pattern, message)));
         }
     }
 }
diff --git a/src/Squidex.Domain.Apps.Core.Model/Apps/Json/JsonAppPattern.cs b/src/Squidex.Domain.Apps.Core.Model/Apps/Json/JsonAppPattern.cs
index 4b30d9e15..9c52a8198 100644
--- a/src/Squidex.Domain.Apps.Core.Model/Apps/Json/JsonAppPattern.cs
+++ b/src/Squidex.Domain.Apps.Core.Model/Apps/Json/JsonAppPattern.cs
@@ -23,7 +23,7 @@ namespace Squidex.Domain.Apps.Core.Apps.Json
         public string Pattern { get; set; }
 
         [JsonProperty]
-        public string DefaultMessage { get; set; }
+        public string Message { get; set; }
 
         public JsonAppPattern()
         {
@@ -36,7 +36,7 @@ namespace Squidex.Domain.Apps.Core.Apps.Json
 
         public AppPattern ToPattern()
         {
-            return new AppPattern(Id, Name, Pattern, DefaultMessage);
+            return new AppPattern(Name, Pattern, Message);
         }
     }
 }
diff --git a/src/Squidex.Domain.Apps.Entities/Apps/Commands/AddPattern.cs b/src/Squidex.Domain.Apps.Entities/Apps/Commands/AddPattern.cs
index 7432c4d81..12df12042 100644
--- a/src/Squidex.Domain.Apps.Entities/Apps/Commands/AddPattern.cs
+++ b/src/Squidex.Domain.Apps.Entities/Apps/Commands/AddPattern.cs
@@ -18,7 +18,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.Commands
 
         public string Pattern { get; set; }
 
-        public string DefaultMessage { get; set; }
+        public string Message { get; set; }
 
         public AddPattern()
         {
diff --git a/src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdatePattern.cs b/src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdatePattern.cs
index 20a436ba3..da4b7f097 100644
--- a/src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdatePattern.cs
+++ b/src/Squidex.Domain.Apps.Entities/Apps/Commands/UpdatePattern.cs
@@ -18,6 +18,6 @@ namespace Squidex.Domain.Apps.Entities.Apps.Commands
 
         public string Pattern { get; set; }
 
-        public string DefaultMessage { get; set; }
+        public string Message { get; set; }
     }
 }
diff --git a/src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs b/src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs
index 917140969..b44ca76bf 100644
--- a/src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs
+++ b/src/Squidex.Domain.Apps.Entities/Apps/State/AppState.cs
@@ -82,7 +82,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.State
 
         protected void On(AppPatternAdded @event)
         {
-            Patterns = Patterns.Add(@event.Id, @event.Name, @event.Pattern, @event.DefaultMessage);
+            Patterns = Patterns.Add(@event.Id, @event.Name, @event.Pattern, @event.Message);
         }
 
         protected void On(AppPatternDeleted @event)
@@ -92,7 +92,7 @@ namespace Squidex.Domain.Apps.Entities.Apps.State
 
         protected void On(AppPatternUpdated @event)
         {
-            Patterns = Patterns.Update(@event.Id, @event.Name, @event.Pattern, @event.DefaultMessage);
+            Patterns = Patterns.Update(@event.Id, @event.Name, @event.Pattern, @event.Message);
         }
 
         protected void On(AppLanguageAdded @event)
diff --git a/src/Squidex.Domain.Apps.Events/Apps/AppPatternAdded.cs b/src/Squidex.Domain.Apps.Events/Apps/AppPatternAdded.cs
index bbd6fd0be..dd37f4ec7 100644
--- a/src/Squidex.Domain.Apps.Events/Apps/AppPatternAdded.cs
+++ b/src/Squidex.Domain.Apps.Events/Apps/AppPatternAdded.cs
@@ -20,6 +20,6 @@ namespace Squidex.Domain.Apps.Events.Apps
 
         public string Pattern { get; set; }
 
-        public string DefaultMessage { get; set; }
+        public string Message { get; set; }
     }
 }
diff --git a/src/Squidex.Domain.Apps.Events/Apps/AppPatternUpdated.cs b/src/Squidex.Domain.Apps.Events/Apps/AppPatternUpdated.cs
index 1f5908b87..c24da6327 100644
--- a/src/Squidex.Domain.Apps.Events/Apps/AppPatternUpdated.cs
+++ b/src/Squidex.Domain.Apps.Events/Apps/AppPatternUpdated.cs
@@ -20,6 +20,6 @@ namespace Squidex.Domain.Apps.Events.Apps
 
         public string Pattern { get; set; }
 
-        public string DefaultMessage { get; set; }
+        public string Message { get; set; }
     }
 }
diff --git a/src/Squidex/Areas/Api/Controllers/Apps/AppPatternsController.cs b/src/Squidex/Areas/Api/Controllers/Apps/AppPatternsController.cs
new file mode 100644
index 000000000..934a07ce5
--- /dev/null
+++ b/src/Squidex/Areas/Api/Controllers/Apps/AppPatternsController.cs
@@ -0,0 +1,127 @@
+// ==========================================================================
+//  AppPatternsController.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using NSwag.Annotations;
+using Squidex.Areas.Api.Controllers.Apps.Models;
+using Squidex.Domain.Apps.Entities.Apps.Commands;
+using Squidex.Infrastructure.Commands;
+using Squidex.Infrastructure.Reflection;
+using Squidex.Pipeline;
+
+namespace Squidex.Areas.Api.Controllers.Apps
+{
+    /// <summary>
+    /// Manages and configures app patterns.
+    /// </summary>
+    [ApiAuthorize]
+    [MustBeAppDeveloper]
+    [ApiExceptionFilter]
+    [AppApi]
+    [SwaggerTag(nameof(Apps))]
+    public sealed class AppPatternsController : ApiController
+    {
+        public AppPatternsController(ICommandBus commandBus)
+            : base(commandBus)
+        {
+        }
+
+        /// <summary>
+        /// Get app patterns.
+        /// </summary>
+        /// <param name="app">The name of the app.</param>
+        /// <returns>
+        /// 200 => Patterns returned.
+        /// 404 => App not found.
+        /// </returns>
+        /// <remarks>
+        /// Gets all configured regex patterns for the app with the specified name.
+        /// </remarks>
+        [HttpGet]
+        [Route("apps/{app}/patterns/")]
+        [ProducesResponseType(typeof(AppPatternDto[]), 200)]
+        [ApiCosts(1)]
+        public IActionResult GetPatterns(string app)
+        {
+            var response =
+                App.Patterns.Select(x => SimpleMapper.Map(x.Value, new AppPatternDto { Id = x.Key })).OrderBy(x => x.Name).ToList();
+
+            return Ok(response);
+        }
+
+        /// <summary>
+        /// Create a new app patterm.
+        /// </summary>
+        /// <param name="app">The name of the app.</param>
+        /// <param name="request">Pattern to be added to the app.</param>
+        /// <returns>
+        /// 201 => Pattern generated.
+        /// 404 => App not found.
+        /// </returns>
+        [HttpPost]
+        [Route("apps/{app}/patterns/")]
+        [ProducesResponseType(typeof(AppPatternDto), 201)]
+        [ApiCosts(1)]
+        public async Task<IActionResult> PostPattern(string app, [FromBody] UpdatePatternDto request)
+        {
+            var command = SimpleMapper.Map(request, new AddPattern());
+
+            await CommandBus.PublishAsync(command);
+
+            return CreatedAtAction(nameof(GetPatterns), new { app }, request);
+        }
+
+        /// <summary>
+        /// Update an existing app patterm.
+        /// </summary>
+        /// <param name="app">The name of the app.</param>
+        /// <param name="id">The id of the pattern to be updated.</param>
+        /// <param name="request">Pattern to be updated for the app.</param>
+        /// <returns>
+        /// 204 => Pattern updated.
+        /// 404 => App not found or pattern not found.
+        /// </returns>
+        [HttpPut]
+        [Route("apps/{app}/patterns/{name}")]
+        [ProducesResponseType(typeof(AppPatternDto), 201)]
+        [ApiCosts(1)]
+        public async Task<IActionResult> UpdatePattern(string app, Guid id, [FromBody] UpdatePatternDto request)
+        {
+            var command = SimpleMapper.Map(request, new UpdatePattern { Id = id });
+
+            await CommandBus.PublishAsync(command);
+
+            return NoContent();
+        }
+
+        /// <summary>
+        /// Revoke an app client
+        /// </summary>
+        /// <param name="app">The name of the app.</param>
+        /// <param name="id">The id of the pattern to be deleted.</param>
+        /// <returns>
+        /// 204 => Pattern removed.
+        /// 404 => App or pattern not found.
+        /// </returns>
+        /// <remarks>
+        /// Schemas using this pattern will still function using the same Regular Expression
+        /// </remarks>
+        [HttpDelete]
+        [Route("apps/{app}/patterns/{id}/")]
+        [ApiCosts(1)]
+        public async Task<IActionResult> DeletePattern(string app, Guid id)
+        {
+            await CommandBus.PublishAsync(new DeletePattern { Id = id });
+
+            return NoContent();
+        }
+    }
+}
diff --git a/src/Squidex/Areas/Api/Controllers/Apps/Models/AppPatternDto.cs b/src/Squidex/Areas/Api/Controllers/Apps/Models/AppPatternDto.cs
new file mode 100644
index 000000000..9fb65d14d
--- /dev/null
+++ b/src/Squidex/Areas/Api/Controllers/Apps/Models/AppPatternDto.cs
@@ -0,0 +1,38 @@
+// ==========================================================================
+//  AppPatternDto.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace Squidex.Areas.Api.Controllers.Apps.Models
+{
+    public sealed class AppPatternDto
+    {
+        /// <summary>
+        /// Identifier for Pattern
+        /// </summary>
+        public Guid Id { get; set; }
+
+        /// <summary>
+        /// The name of the suggestion.
+        /// </summary>
+        [Required]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// The regex pattern.
+        /// </summary>
+        [Required]
+        public string Pattern { get; set; }
+
+        /// <summary>
+        /// The regex message.
+        /// </summary>
+        public string Message { get; set; }
+    }
+}
diff --git a/src/Squidex/Areas/Api/Controllers/Apps/Models/UpdatePatternDto.cs b/src/Squidex/Areas/Api/Controllers/Apps/Models/UpdatePatternDto.cs
new file mode 100644
index 000000000..89506dfcc
--- /dev/null
+++ b/src/Squidex/Areas/Api/Controllers/Apps/Models/UpdatePatternDto.cs
@@ -0,0 +1,32 @@
+// ==========================================================================
+//  AddPatternDto.cs
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex Group
+//  All rights reserved.
+// ==========================================================================
+
+using System.ComponentModel.DataAnnotations;
+
+namespace Squidex.Areas.Api.Controllers.Apps.Models
+{
+    public class UpdatePatternDto
+    {
+        /// <summary>
+        /// The name of the suggestion.
+        /// </summary>
+        [Required]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// The regex pattern.
+        /// </summary>
+        [Required]
+        public string Pattern { get; set; }
+
+        /// <summary>
+        /// The regex message.
+        /// </summary>
+        public string Message { get; set; }
+    }
+}
diff --git a/tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs b/tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs
index 65bc15461..d192ed65f 100644
--- a/tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs
+++ b/tests/Squidex.Domain.Apps.Entities.Tests/Apps/AppDomainObjectTests.cs
@@ -293,13 +293,13 @@ namespace Squidex.Domain.Apps.Entities.Apps
         {
             CreateApp();
 
-            sut.AddPattern(CreateCommand(new AddPattern { Id = patternId, Name = "Any", Pattern = ".*", DefaultMessage = "Msg" }));
+            sut.AddPattern(CreateCommand(new AddPattern { Id = patternId, Name = "Any", Pattern = ".*", Message = "Msg" }));
 
             Assert.Single(sut.State.Patterns);
 
             sut.GetUncomittedEvents()
                 .ShouldHaveSameEvents(
-                    CreateEvent(new AppPatternAdded { Id = patternId, Name = "Any", Pattern = ".*", DefaultMessage = "Msg" })
+                    CreateEvent(new AppPatternAdded { Id = patternId, Name = "Any", Pattern = ".*", Message = "Msg" })
                 );
         }
 
@@ -343,13 +343,13 @@ namespace Squidex.Domain.Apps.Entities.Apps
             CreateApp();
             CreatePattern();
 
-            sut.UpdatePattern(CreateCommand(new UpdatePattern { Id = patternId, Name = "Any", Pattern = ".*", DefaultMessage = "Msg" }));
+            sut.UpdatePattern(CreateCommand(new UpdatePattern { Id = patternId, Name = "Any", Pattern = ".*", Message = "Msg" }));
 
             Assert.Single(sut.State.Patterns);
 
             sut.GetUncomittedEvents()
                 .ShouldHaveSameEvents(
-                    CreateEvent(new AppPatternUpdated { Id = patternId, Name = "Any", Pattern = ".*", DefaultMessage = "Msg" })
+                    CreateEvent(new AppPatternUpdated { Id = patternId, Name = "Any", Pattern = ".*", Message = "Msg" })
                 );
         }