diff --git a/BotSharp.sln b/BotSharp.sln
index 1ce6baf1..ccaa90c5 100644
--- a/BotSharp.sln
+++ b/BotSharp.sln
@@ -25,8 +25,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.HuggingFace
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.ChatbotUI", "src\Plugins\BotSharp.Plugin.ChatbotUI\BotSharp.Plugin.ChatbotUI.csproj", "{68C7C9E9-496B-4004-A1F8-75FFB8C06C76}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.FacebookMessenger", "src\Plugins\BotSharp.Plugin.FacebookMessenger\BotSharp.Plugin.FacebookMessenger.csproj", "{0149F6C2-4CF8-4904-A545-54F3278BEA74}"
-EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.WeChat", "src\Plugins\BotSharp.Plugin.WeChat\BotSharp.Plugin.WeChat.csproj", "{2323A7A3-E938-488D-A57E-638638054BC4}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tests", "Tests", "{32FAFFFE-A4CB-4FEE-BF7C-84518BBC6DCC}"
@@ -43,6 +41,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Visions", "Visions", "{B797
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.PaddleSharp", "src\Plugins\BotSharp.Plugin.PaddleSharp\BotSharp.Plugin.PaddleSharp.csproj", "{0308FBFD-57EB-4709-9AE4-A80D516AD84D}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BotSharp.Plugin.MetaMessenger", "src\Plugins\BotSharp.Plugin.MetaMessenger\BotSharp.Plugin.MetaMessenger.csproj", "{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -125,18 +125,6 @@ Global
 		{68C7C9E9-496B-4004-A1F8-75FFB8C06C76}.Release|Any CPU.Build.0 = Release|Any CPU
 		{68C7C9E9-496B-4004-A1F8-75FFB8C06C76}.Release|x64.ActiveCfg = Release|Any CPU
 		{68C7C9E9-496B-4004-A1F8-75FFB8C06C76}.Release|x64.Build.0 = Release|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.Debug|x64.ActiveCfg = Debug|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.Debug|x64.Build.0 = Debug|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.GPU|Any CPU.ActiveCfg = Release|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.GPU|Any CPU.Build.0 = Release|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.GPU|x64.ActiveCfg = Release|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.GPU|x64.Build.0 = Release|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.Release|Any CPU.Build.0 = Release|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.Release|x64.ActiveCfg = Release|Any CPU
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74}.Release|x64.Build.0 = Release|Any CPU
 		{2323A7A3-E938-488D-A57E-638638054BC4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{2323A7A3-E938-488D-A57E-638638054BC4}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2323A7A3-E938-488D-A57E-638638054BC4}.Debug|x64.ActiveCfg = Debug|Any CPU
@@ -197,6 +185,18 @@ Global
 		{0308FBFD-57EB-4709-9AE4-A80D516AD84D}.Release|Any CPU.Build.0 = Release|Any CPU
 		{0308FBFD-57EB-4709-9AE4-A80D516AD84D}.Release|x64.ActiveCfg = Release|Any CPU
 		{0308FBFD-57EB-4709-9AE4-A80D516AD84D}.Release|x64.Build.0 = Release|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.Debug|x64.Build.0 = Debug|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.GPU|Any CPU.ActiveCfg = Debug|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.GPU|Any CPU.Build.0 = Debug|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.GPU|x64.ActiveCfg = Debug|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.GPU|x64.Build.0 = Debug|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.Release|x64.ActiveCfg = Release|Any CPU
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE}.Release|x64.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -210,7 +210,6 @@ Global
 		{3EAB9CF3-0F47-4BFB-8BAC-8ADFF24AD899} = {D5293208-2BEF-42FC-A64C-5954F61720BA}
 		{57806BAF-7736-425A-B499-13A2A2DF1E63} = {D5293208-2BEF-42FC-A64C-5954F61720BA}
 		{68C7C9E9-496B-4004-A1F8-75FFB8C06C76} = {42226933-0A0D-48E8-85EC-AFE773A1F841}
-		{0149F6C2-4CF8-4904-A545-54F3278BEA74} = {64264688-0F5C-4AB0-8F2B-B59B717CCE00}
 		{2323A7A3-E938-488D-A57E-638638054BC4} = {64264688-0F5C-4AB0-8F2B-B59B717CCE00}
 		{0B6E1D7F-ABDE-47F6-8B2D-4483C2CFF2D6} = {32FAFFFE-A4CB-4FEE-BF7C-84518BBC6DCC}
 		{6D8D18A9-86D7-455E-81EC-9682C30AB7E7} = {D5293208-2BEF-42FC-A64C-5954F61720BA}
@@ -218,6 +217,7 @@ Global
 		{FE2E6CC1-EB80-4518-B3A3-CB373EDA6A83} = {53E7CD86-0D19-40D9-A0FA-AB4613837E89}
 		{B797EC3E-B5B9-4047-A6C8-6D330B7C6763} = {2635EC9B-2E5F-4313-AC21-0B847F31F36C}
 		{0308FBFD-57EB-4709-9AE4-A80D516AD84D} = {B797EC3E-B5B9-4047-A6C8-6D330B7C6763}
+		{8300F66D-9EB8-438A-BF0F-70DFBE07D9DE} = {64264688-0F5C-4AB0-8F2B-B59B717CCE00}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {A9969D89-C98B-40A5-A12B-FC87E55B3A19}
diff --git a/src/Infrastructure/BotSharp.Abstraction/Conversations/IConversationService.cs b/src/Infrastructure/BotSharp.Abstraction/Conversations/IConversationService.cs
index e3a1684d..409c5e8e 100644
--- a/src/Infrastructure/BotSharp.Abstraction/Conversations/IConversationService.cs
+++ b/src/Infrastructure/BotSharp.Abstraction/Conversations/IConversationService.cs
@@ -10,6 +10,6 @@ public interface IConversationService
     Task DeleteConversation(string id);
     Task<bool> SendMessage(string agentId, string conversationId, RoleDialogModel lastDalog, Func<RoleDialogModel, Task> onMessageReceived);
     Task<bool> SendMessage(string agentId, string conversationId, List<RoleDialogModel> wholeDialogs, Func<RoleDialogModel, Task> onMessageReceived);
-    List<RoleDialogModel> GetDialogHistory(string agentId, string conversationId);
+    List<RoleDialogModel> GetDialogHistory(string agentId, string conversationId, int lastCount = 20);
     Task CleanHistory(string agentId);
 }
diff --git a/src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs b/src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs
index 63b5e6c7..e09a33f5 100644
--- a/src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs
+++ b/src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.cs
@@ -170,8 +170,9 @@ public class ConversationService : IConversationService
         throw new NotImplementedException();
     }
 
-    public List<RoleDialogModel> GetDialogHistory(string agentId, string conversationId)
+    public List<RoleDialogModel> GetDialogHistory(string agentId, string conversationId, int lastCount = 20)
     {
-        return _storage.GetDialogs(agentId, conversationId);
+        var dialogs = _storage.GetDialogs(agentId, conversationId);
+        return dialogs.TakeLast(lastCount).ToList();
     }
 }
diff --git a/src/Plugins/BotSharp.Plugin.FacebookMessenger/BotSharp.Plugin.FacebookMessenger.csproj b/src/Plugins/BotSharp.Plugin.FacebookMessenger/BotSharp.Plugin.FacebookMessenger.csproj
deleted file mode 100644
index d4c395e8..00000000
--- a/src/Plugins/BotSharp.Plugin.FacebookMessenger/BotSharp.Plugin.FacebookMessenger.csproj
+++ /dev/null
@@ -1,7 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netstandard2.1</TargetFramework>
-  </PropertyGroup>
-
-</Project>
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/BotSharp.Plugin.MetaMessenger.csproj b/src/Plugins/BotSharp.Plugin.MetaMessenger/BotSharp.Plugin.MetaMessenger.csproj
new file mode 100644
index 00000000..15f0ca00
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/BotSharp.Plugin.MetaMessenger.csproj
@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.1</TargetFramework>
+    <LangVersion>10</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\Infrastructure\BotSharp.Abstraction\BotSharp.Abstraction.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.2.5" />
+    <PackageReference Include="Refit.HttpClientFactory" Version="7.0.0" />
+  </ItemGroup>
+
+</Project>
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/Controllers/WebhookController.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/Controllers/WebhookController.cs
new file mode 100644
index 00000000..ab98cbe7
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/Controllers/WebhookController.cs
@@ -0,0 +1,98 @@
+using BotSharp.Abstraction.Conversations.Models;
+using BotSharp.Abstraction.Conversations;
+using BotSharp.Plugin.MetaMessenger.GraphAPIs;
+using BotSharp.Plugin.MetaMessenger.MessagingModels;
+using BotSharp.Plugin.MetaMessenger.Settings;
+using BotSharp.Plugin.MetaMessenger.WebhookModels;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace BotSharp.Plugin.MetaMessenger.Controllers;
+
+/// <summary>
+/// This controller is used to receive Wehbook from Messenger platform
+/// https://developers.facebook.com/docs/graph-api/webhooks/
+/// </summary>
+[AllowAnonymous]
+public class WebhookController : ControllerBase
+{
+    private readonly IServiceProvider _services;
+
+    public WebhookController(IServiceProvider services)
+    {
+        _services = services;
+    }
+
+    [HttpGet("/webhook")]
+    public string Verificate([FromQuery(Name = "hub.mode")] string mode,
+        [FromQuery(Name = "hub.verify_token")] string token,
+        [FromQuery(Name = "hub.challenge")] string challenge)
+    {
+        return challenge;
+    }
+
+    /// <summary>
+    /// https://developers.facebook.com/docs/messenger-platform/webhooks
+    /// </summary>
+    /// <returns></returns>
+    [HttpPost("/webhook")]
+    public async Task<ActionResult<WebhookResponse>> Messages()
+    {
+        using var stream = new StreamReader(Request.Body);
+        var body = await stream.ReadToEndAsync();
+        var req = JsonSerializer.Deserialize<WebhookRequest>(body, new JsonSerializerOptions
+        {
+            PropertyNameCaseInsensitive = true,
+        });
+
+        // TODO validate request
+        // https://developers.facebook.com/docs/messenger-platform/webhooks#verification-requests
+
+        try
+        {
+            // received message
+            if (req.Entry[0].Messaging[0].Message != null)
+            {
+                var conv = _services.GetRequiredService<IConversationService>();
+
+                string content = "";
+                var sessionId = req.Entry[0].Messaging[0].Sender.Id;
+                var input = req.Entry[0].Messaging[0].Message.Text;
+                var result = await conv.SendMessage("", sessionId, new RoleDialogModel("user", input), async msg =>
+                {
+                    content = msg.Content;
+                });
+
+                var setting = _services.GetRequiredService<MetaMessengerSetting>();
+                var messenger = _services.GetRequiredService<IMessengerGraphAPI>();
+                var jsonOpt = new JsonSerializerOptions
+                {
+                    PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+                };
+                await messenger.SendMessage(setting.ApiVersion, setting.PageId, new SendingMessageRequest
+                {
+                    AccessToken = setting.PageAccessToken,
+                    Recipient = JsonSerializer.Serialize(new { Id = sessionId }, jsonOpt),
+                    Message = JsonSerializer.Serialize(new { Text = content }, jsonOpt)
+                });
+            }
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine(ex.ToString());
+        }
+
+        return Ok(new WebhookResponse
+        {
+            Success = true
+        });
+    }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/GraphAPIs/AuthHeaderHandler.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/GraphAPIs/AuthHeaderHandler.cs
new file mode 100644
index 00000000..35b11acd
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/GraphAPIs/AuthHeaderHandler.cs
@@ -0,0 +1,30 @@
+using Microsoft.AspNetCore.Http;
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Text;
+using System.Threading.Tasks;
+using System.Threading;
+using BotSharp.Plugin.MetaMessenger.Settings;
+
+namespace BotSharp.Plugin.MetaMessenger.GraphAPIs;
+
+public class AuthHeaderHandler : DelegatingHandler
+{
+    private readonly IHttpContextAccessor _context;
+    private readonly MetaMessengerSetting _settings;
+
+    public AuthHeaderHandler(IHttpContextAccessor context,
+        MetaMessengerSetting settings)
+    {
+        _context = context;
+        _settings = settings;
+    }
+
+    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
+    {
+        // request.Headers.Add("Authorization", _settings.PageAccessToken);
+
+        return await base.SendAsync(request, cancellationToken).ConfigureAwait(false);
+    }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/GraphAPIs/IMessengerGraphAPI.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/GraphAPIs/IMessengerGraphAPI.cs
new file mode 100644
index 00000000..bd81188f
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/GraphAPIs/IMessengerGraphAPI.cs
@@ -0,0 +1,20 @@
+using BotSharp.Plugin.MetaMessenger.MessagingModels;
+using Refit;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BotSharp.Plugin.MetaMessenger.GraphAPIs;
+
+public interface IMessengerGraphAPI
+{
+    /// <summary>
+    /// https://developers.facebook.com/docs/messenger-platform/reference/send-api
+    /// </summary>
+    /// <example>
+    /// /v17.0/104435566084134/messages?recipient={'id':'6610279455689235'}&messaging_type=RESPONSE&message={'text':'hello,world'}&access_token=
+    /// </example>
+    [Post("/{apiVer}/{pageId}/messages")]
+    Task<SendingMessageResponse> SendMessage(string apiVer, string pageId, [Query] SendingMessageRequest request);
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/MessagingModels/SendingMessageRequest.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/MessagingModels/SendingMessageRequest.cs
new file mode 100644
index 00000000..1eb33e66
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/MessagingModels/SendingMessageRequest.cs
@@ -0,0 +1,27 @@
+using Refit;
+
+namespace BotSharp.Plugin.MetaMessenger.MessagingModels;
+
+/// <summary>
+/// https://developers.facebook.com/docs/messenger-platform/reference/send-api#parameters
+/// </summary>
+public class SendingMessageRequest
+{
+    /// <example>
+    /// {'id':'6610279455689235'}
+    /// </example>
+    [AliasAs("recipient")]
+    public string Recipient { get; set; }
+
+    /// <example>
+    /// {'text':'hello,world'}
+    /// </example>
+    [AliasAs("message")]
+    public string Message { get; set; }
+
+    [AliasAs("access_token")]
+    public string AccessToken { get; set; }
+
+    [AliasAs("messaging_type")]
+    public string MessagingType { get; set; } = "RESPONSE";
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/MessagingModels/SendingMessageResponse.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/MessagingModels/SendingMessageResponse.cs
new file mode 100644
index 00000000..df598c85
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/MessagingModels/SendingMessageResponse.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.Json.Serialization;
+
+namespace BotSharp.Plugin.MetaMessenger.MessagingModels;
+
+public class SendingMessageResponse
+{
+    [JsonPropertyName("recipient_id")]
+    public string RecipientId { get; set; }
+
+    [JsonPropertyName("message_id")]
+    public string MessageId { get; set; }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/MetaMessengerPlugin.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/MetaMessengerPlugin.cs
new file mode 100644
index 00000000..fe84b407
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/MetaMessengerPlugin.cs
@@ -0,0 +1,38 @@
+using BotSharp.Abstraction.Plugins;
+using BotSharp.Plugin.MetaMessenger.GraphAPIs;
+using BotSharp.Plugin.MetaMessenger.Settings;
+using BotSharp.Abstraction.Utilities;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Refit;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace BotSharp.Plugin.MetaMessenger;
+
+/// <summary>
+/// https://developers.facebook.com/docs/messenger-platform/overview
+/// </summary>
+public class MetaMessengerPlugin : IBotSharpPlugin
+{
+    public void RegisterDI(IServiceCollection services, IConfiguration config)
+    {
+        var settings = new MetaMessengerSetting();
+        config.Bind("MetaMessenger", settings);
+        services.AddSingleton(x =>
+        {
+            Console.WriteLine($"Loaded MetaMessenger settings: {settings.Endpoint}/{settings.ApiVersion} {settings.PageId} {settings.PageAccessToken.SubstringMax(4)}");
+            return settings;
+        });
+
+        // services.AddScoped<AuthHeaderHandler>();
+        services.AddRefitClient<IMessengerGraphAPI>()
+            .ConfigureHttpClient((sp, c) =>
+                {
+                    var setting = sp.GetRequiredService<MetaMessengerSetting>();
+                    c.BaseAddress = new Uri($"{setting.Endpoint}");
+                });
+            //.AddHttpMessageHandler<AuthHeaderHandler>();
+    }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/Settings/MetaMessengerSetting.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/Settings/MetaMessengerSetting.cs
new file mode 100644
index 00000000..0c4e6200
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/Settings/MetaMessengerSetting.cs
@@ -0,0 +1,9 @@
+namespace BotSharp.Plugin.MetaMessenger.Settings;
+
+public class MetaMessengerSetting
+{
+    public string Endpoint { get; set; }
+    public string ApiVersion { get; set; }
+    public string PageId { get; set; }
+    public string PageAccessToken { get; set; }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessage.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessage.cs
new file mode 100644
index 00000000..20d72c37
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessage.cs
@@ -0,0 +1,9 @@
+namespace BotSharp.Plugin.MetaMessenger.WebhookModels;
+
+public class WebhookMessage
+{
+    public WebhookMessageUser Sender { get; set; }
+    public WebhookMessageUser Recipient { get; set; }
+    public WebhookMessageBody Message { get; set; }
+    public long TimeStamp { get; set; }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessageBody.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessageBody.cs
new file mode 100644
index 00000000..3da17142
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessageBody.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.Json.Serialization;
+
+namespace BotSharp.Plugin.MetaMessenger.WebhookModels;
+
+public class WebhookMessageBody
+{
+    [JsonPropertyName("mid")]
+    public string Id { get;set; }
+    public string Text { get;set; }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessageUser.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessageUser.cs
new file mode 100644
index 00000000..5c7ae01c
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookMessageUser.cs
@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace BotSharp.Plugin.MetaMessenger.WebhookModels;
+
+public class WebhookMessageUser
+{
+    public string Id { get; set; }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookObject.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookObject.cs
new file mode 100644
index 00000000..9466bce8
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookObject.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace BotSharp.Plugin.MetaMessenger.WebhookModels;
+
+public class WebhookObject
+{
+    public string Id { get; set; }
+    public long Time { get; set; }
+    public List<WebhookMessage> Messaging { get; set; }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookRequest.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookRequest.cs
new file mode 100644
index 00000000..d73949c4
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookRequest.cs
@@ -0,0 +1,11 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace BotSharp.Plugin.MetaMessenger.WebhookModels;
+
+public class WebhookRequest
+{
+    public string Object { get;set; }
+    public List<WebhookObject> Entry { get;set; }
+}
diff --git a/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookResponse.cs b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookResponse.cs
new file mode 100644
index 00000000..77335d6d
--- /dev/null
+++ b/src/Plugins/BotSharp.Plugin.MetaMessenger/WebhookModels/WebhookResponse.cs
@@ -0,0 +1,10 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace BotSharp.Plugin.MetaMessenger.WebhookModels;
+
+public class WebhookResponse
+{
+    public bool Success { get; set; }
+}