diff --git a/Dtos/XApiKeyDto.cs b/Dtos/XApiKeyDto.cs
new file mode 100644
index 0000000..1c2cbc1
--- /dev/null
+++ b/Dtos/XApiKeyDto.cs
@@ -0,0 +1,74 @@
+using System;
+using xModels.Base;
+
+namespace xIdentityModels.Dtos
+{
+    /// <summary>
+    /// an Specified Api Key ...
+    /// </summary>
+    public class XApiKeyDto : XBaseGuidIDEntityDto
+    {
+        /// <summary>
+        /// Related Application Id ...
+        /// </summary>
+        public int ApplicationId { get; set; }
+
+        /// <summary>
+        /// Hash ...
+        /// SHA256 of ApiKey ...
+        /// </summary>
+        public string KeyHash { get; set; }
+
+        /// <summary>
+        /// a Prefix ...
+        /// </summary>
+        public string KeyPrefix { get; set; }
+
+        /// <summary>
+        /// Expiration Type ...
+        /// </summary>
+        public DateTime ExpiresAt { get; set; }
+
+        /// <summary>
+        /// Cration Time ...
+        /// </summary>
+        public DateTime CreatedOn { get; set; }
+
+        /// <summary>
+        /// Last Usage Date ...
+        /// </summary>
+        public DateTime? LastUsedAt { get; set; }
+
+        /// <summary>
+        /// Revoked Time ...
+        /// </summary>
+        public DateTime? RevokedAt { get; set; }
+
+        /// <summary>
+        /// Revoker User Id ...
+        /// </summary>
+        public string RevokedBy { get; set; }
+
+        /// <summary>
+        /// a Json Array String ...
+        /// XApiKeyScope ...
+        /// </summary>
+        public string AllowedScopes { get; set; }
+
+        /// <summary>
+        /// a Comma-separated List which Specified White List IP ...
+        /// </summary>
+        public string AllowedIPs { get; set; }
+
+        /// <summary>
+        /// Rate Limit Per Minute ...
+        /// </summary>
+        public int RateLimitPerMinute { get; set; } = 60;
+
+        // 
+        /// <summary>
+        /// Related Application ...
+        /// </summary>
+        public virtual XApplicationDto Application { get; set; }
+    }
+}
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diff --git a/Dtos/XApiKeyUsageDto.cs b/Dtos/XApiKeyUsageDto.cs
new file mode 100644
index 0000000..dbdb030
--- /dev/null
+++ b/Dtos/XApiKeyUsageDto.cs
@@ -0,0 +1,43 @@
+using System;
+using xModels.Base;
+
+namespace xIdentityModels.Dtos
+{
+    public class XApiKeyUsageDto : XBaseLongIDEntityDto
+    {
+        /// <summary>
+        /// Api Key Id ...
+        /// </summary>
+        public Guid ApiKeyId { get; set; }
+
+        /// <summary>
+        /// Called Endpoint ...
+        /// </summary>
+        public string Endpoint { get; set; }
+
+        /// <summary>
+        /// Called Http Method ...
+        /// </summary>
+        public string HttpMethod { get; set; }
+
+        /// <summary>
+        /// Client IP Address ...
+        /// </summary>
+        public string ClientIP { get; set; }
+
+        /// <summary>
+        /// Status Code ...
+        /// </summary>
+        public int StatusCode { get; set; }
+
+        /// <summary>
+        /// Request Time ...
+        /// </summary>
+        public DateTime RequestedOn { get; set; }
+
+        /// <summary>
+        /// Response Time in Milliseconds ...
+        /// </summary>
+        public long ResponseTimeMs { get; set; }        
+    }
+}
\ No newline at end of file
diff --git a/Dtos/XApplicationDto.cs b/Dtos/XApplicationDto.cs
new file mode 100644
index 0000000..c757c49
--- /dev/null
+++ b/Dtos/XApplicationDto.cs
@@ -0,0 +1,49 @@
+using System;
+using xModels.Base;
+using xModels.Dtos;
+using xIdentityModels.Constants;
+
+namespace xIdentityModels.Dtos
+{
+    /// <summary>
+    /// an Application in xDashboard ...
+    /// </summary>
+    public class XApplicationDto : XBaseIntIDEntityDto
+    {
+        /// <summary>
+        /// Name ...
+        /// </summary>
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Descriptor ...
+        /// </summary>
+        public string Description { get; set; }
+
+        /// <summary>
+        /// Owner Id ...
+        /// </summary>
+        public string OwnerId { get; set; }
+        public virtual XPersonDto Owner { get; set; }
+
+        /// <summary>
+        /// Application Type ...
+        /// </summary>
+        public XApplicationType Type { get; set; }
+
+        /// <summary>
+        /// Specified Application is Active or not ...
+        /// </summary>
+        public bool IsActive { get; set; } = true;
+
+        /// <summary>
+        /// Application Create Time ...
+        /// </summary>
+        public DateTime CreatedOn { get; set; }
+
+        /// <summary>
+        /// Application Update Type ...
+        /// </summary>
+        public DateTime UpdatedAt { get; set; }
+    }
+}
\ No newline at end of file