diff --git a/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Extensions/DouyinMicroAppWebcastClientExecuteWebcastMateExtensions.cs b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Extensions/DouyinMicroAppWebcastClientExecuteWebcastMateExtensions.cs
new file mode 100644
index 00000000..60a95431
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Extensions/DouyinMicroAppWebcastClientExecuteWebcastMateExtensions.cs
@@ -0,0 +1,34 @@
+using System;
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using Flurl.Http;
+
+namespace SKIT.FlurlHttpClient.ByteDance.MicroApp.ExtendedSDK.Webcast
+{
+    public static class DouyinMicroAppWebcastClientExecuteWebcastMateExtensions
+    {
+        /// <summary>
+        /// <para>异步调用 [POST] /webcastmate/info 接口。</para>
+        /// <para>
+        /// REF: <br/>
+        /// <![CDATA[ https://developer.open-douyin.com/docs/resource/zh-CN/interaction/develop/server/live/webcastinfo ]]>
+        /// </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.WebcastWebcastMateInfoResponse> ExecuteWebcastWebcastMateInfoAsync(this DouyinMicroAppWebcastClient client, Models.WebcastWebcastMateInfoRequest request, CancellationToken cancellationToken = default)
+        {
+            if (client is null) throw new ArgumentNullException(nameof(client));
+            if (request is null) throw new ArgumentNullException(nameof(request));
+
+            IFlurlRequest flurlReq = client
+                .CreateFlurlRequest(request, HttpMethod.Post, "webcastmate", "info")
+                .WithHeader("X-Token", request.AccessToken);
+
+            return await client.SendFlurlRequestAsJsonAsync<Models.WebcastWebcastMateInfoResponse>(flurlReq, data: request, cancellationToken: cancellationToken).ConfigureAwait(false);
+        }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/Business/WebcastBusinessDiamondReconciliationResponse.cs b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/Business/WebcastBusinessDiamondReconciliationResponse.cs
index 60d7865b..24efafed 100644
--- a/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/Business/WebcastBusinessDiamondReconciliationResponse.cs
+++ b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/Business/WebcastBusinessDiamondReconciliationResponse.cs
@@ -16,6 +16,7 @@ public class Order
                 /// </summary>
                 [Newtonsoft.Json.JsonProperty("room_id")]
                 [System.Text.Json.Serialization.JsonPropertyName("room_id")]
+                [System.Text.Json.Serialization.JsonConverter(typeof(System.Text.Json.Serialization.Common.NumericalStringReadOnlyConverter))]
                 public string RoomId { get; set; } = default!;
 
                 /// <summary>
diff --git a/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/LiveData/WebcastLiveDataTaskFailDataGetResponse.cs b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/LiveData/WebcastLiveDataTaskFailDataGetResponse.cs
index f5970df9..16976240 100644
--- a/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/LiveData/WebcastLiveDataTaskFailDataGetResponse.cs
+++ b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/LiveData/WebcastLiveDataTaskFailDataGetResponse.cs
@@ -18,6 +18,7 @@ public class FailedData
                         /// </summary>
                         [Newtonsoft.Json.JsonProperty("roomid")]
                         [System.Text.Json.Serialization.JsonPropertyName("roomid")]
+                        [System.Text.Json.Serialization.JsonConverter(typeof(System.Text.Json.Serialization.Common.NumericalStringReadOnlyConverter))]
                         public string RoomId { get; set; } = default!;
 
                         /// <summary>
diff --git a/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/WebcastMate/WebcastWebcastMateInfoRequest.cs b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/WebcastMate/WebcastWebcastMateInfoRequest.cs
new file mode 100644
index 00000000..896b64cf
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/WebcastMate/WebcastWebcastMateInfoRequest.cs
@@ -0,0 +1,15 @@
+namespace SKIT.FlurlHttpClient.ByteDance.MicroApp.ExtendedSDK.Webcast.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /webcastmate/info 接口的请求。</para>
+    /// </summary>
+    public class WebcastWebcastMateInfoRequest : DouyinMicroAppWebcastRequest
+    {
+        /// <summary>
+        /// 获取或设置直播伴侣 Token。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("token")]
+        [System.Text.Json.Serialization.JsonPropertyName("token")]
+        public string WebcastMateToken { get; set; } = string.Empty;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/WebcastMate/WebcastWebcastMateInfoResponse.cs b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/WebcastMate/WebcastWebcastMateInfoResponse.cs
new file mode 100644
index 00000000..4c4f319d
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.ByteDance.MicroApp/ExtendedSDK/Webcast/Models/WebcastMate/WebcastWebcastMateInfoResponse.cs
@@ -0,0 +1,63 @@
+namespace SKIT.FlurlHttpClient.ByteDance.MicroApp.ExtendedSDK.Webcast.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /webcastmate/info 接口的响应。</para>
+    /// </summary>
+    public class WebcastWebcastMateInfoResponse : DouyinMicroAppWebcastResponse
+    {
+        public static class Types
+        {
+            public class Data
+            {
+                public static class Types
+                {
+                    public class LiveInfo
+                    {
+                        /// <summary>
+                        /// 获取或设置直播间 ID。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("room_id")]
+                        [System.Text.Json.Serialization.JsonPropertyName("room_id")]
+                        [System.Text.Json.Serialization.JsonConverter(typeof(System.Text.Json.Serialization.Common.NumericalStringReadOnlyConverter))]
+                        public string RoomId { get; set; } = default!;
+
+                        /// <summary>
+                        /// 获取或设置主播的 OpenId。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("anchor_open_id")]
+                        [System.Text.Json.Serialization.JsonPropertyName("anchor_open_id")]
+                        public string AnchorOpenId { get; set; } = default!;
+
+                        /// <summary>
+                        /// 获取或设置主播的昵称。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("nick_name")]
+                        [System.Text.Json.Serialization.JsonPropertyName("nick_name")]
+                        public string AnchorNickname { get; set; } = default!;
+
+                        /// <summary>
+                        /// 获取或设置主播的头像 URL。
+                        /// </summary>
+                        [Newtonsoft.Json.JsonProperty("avatar_url")]
+                        [System.Text.Json.Serialization.JsonPropertyName("avatar_url")]
+                        public string AnchorAvatarUrl { get; set; } = default!;
+                    }
+                }
+
+                /// <summary>
+                /// 获取或设置直播信息。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("info")]
+                [System.Text.Json.Serialization.JsonPropertyName("info")]
+                public Types.LiveInfo LiveInfo { get; set; } = default!;
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置返回数据。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("data")]
+        [System.Text.Json.Serialization.JsonPropertyName("data")]
+        public Types.Data Data { get; set; } = default!;
+    }
+}
diff --git a/test/SKIT.FlurlHttpClient.ByteDance.MicroApp.UnitTests/ModelSamples/Webcast/WebcastMate/WebcastWebcastMateInfoRequest.json b/test/SKIT.FlurlHttpClient.ByteDance.MicroApp.UnitTests/ModelSamples/Webcast/WebcastMate/WebcastWebcastMateInfoRequest.json
new file mode 100644
index 00000000..23eadf56
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.ByteDance.MicroApp.UnitTests/ModelSamples/Webcast/WebcastMate/WebcastWebcastMateInfoRequest.json
@@ -0,0 +1,3 @@
+{
+    "token": "pJKr395h6O5x2ykBjgrBIxnuot8nn62djr70EocUFXtiN1s9VpsHHuEPdZYKHVJFzftyIOb8lj9i0lrLnUhQsK55pT8shfX98qGuUBO7PSKoIVRq6tWMRdsjPVw="
+}
diff --git a/test/SKIT.FlurlHttpClient.ByteDance.MicroApp.UnitTests/ModelSamples/Webcast/WebcastMate/WebcastWebcastMateInfoResponse.json b/test/SKIT.FlurlHttpClient.ByteDance.MicroApp.UnitTests/ModelSamples/Webcast/WebcastMate/WebcastWebcastMateInfoResponse.json
new file mode 100644
index 00000000..6f177b51
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.ByteDance.MicroApp.UnitTests/ModelSamples/Webcast/WebcastMate/WebcastWebcastMateInfoResponse.json
@@ -0,0 +1,10 @@
+{
+    "data": {
+        "info": {
+            "room_id": 7214015683695250235,
+            "anchor_open_id": "_000oJIu6APhomK7KIBGqSYm5XYPxCJB_xxx",
+            "avatar_url": "https://p11.douyinpic.com/aweme/720x720/aweme-avatar/tos-cn-avt-0015_973c31e8055f78a41d3f7de3def9821d.jpeg?from=3067671334",
+            "nick_name": "xxx"
+        }
+    }
+}