diff --git a/sdk/build.gradle b/sdk/build.gradle
index 6523f01d1..46fb3f8e2 100644
--- a/sdk/build.gradle
+++ b/sdk/build.gradle
@@ -10,7 +10,7 @@ apply plugin: "org.jetbrains.dokka"
 apply plugin: 'io.radar.mvnpublish'
 
 ext {
-    radarVersion = '3.9.4'
+    radarVersion = '3.9.5'
 }
 
 String buildNumber = ".${System.currentTimeMillis()}"
diff --git a/sdk/src/main/java/io/radar/sdk/RadarApiClient.kt b/sdk/src/main/java/io/radar/sdk/RadarApiClient.kt
index f4b33642a..2f7c02ed8 100644
--- a/sdk/src/main/java/io/radar/sdk/RadarApiClient.kt
+++ b/sdk/src/main/java/io/radar/sdk/RadarApiClient.kt
@@ -94,7 +94,7 @@ internal class RadarApiClient(
     }
 
     private fun headers(publishableKey: String): Map<String, String> {
-        return mapOf(
+        val headers = mutableMapOf(
             "Authorization" to publishableKey,
             "Content-Type" to "application/json",
             "X-Radar-Config" to "true",
@@ -104,6 +104,13 @@ internal class RadarApiClient(
             "X-Radar-Device-Type" to RadarUtils.deviceType,
             "X-Radar-SDK-Version" to RadarUtils.sdkVersion
         )
+        if (RadarSettings.isXPlatform(context)) {
+            headers["X-Radar-X-Platform-SDK-Type"] = RadarSettings.getXPlatformSDKType(context)
+            headers["X-Radar-X-Platform-SDK-Version"] = RadarSettings.getXPlatformSDKVersion(context)
+        } else {
+            headers["X-Radar-X-Platform-SDK-Type"] = "Native"
+        }
+        return headers
     }
 
     internal fun getConfig(usage: String? = null, verified: Boolean = false, callback: RadarGetConfigApiCallback? = null) {
@@ -298,6 +305,12 @@ internal class RadarApiClient(
             params.putOpt("country", RadarUtils.country)
             params.putOpt("timeZoneOffset", RadarUtils.timeZoneOffset)
             params.putOpt("source", Radar.stringForSource(source))
+            if (RadarSettings.isXPlatform(context)) {
+                params.putOpt("xPlatformType", RadarSettings.getXPlatformSDKType(context))
+                params.putOpt("xPlatformSDKVersion", RadarSettings.getXPlatformSDKVersion(context))
+            } else {
+                params.putOpt("xPlatformType", "Native")
+            }
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
                 val mocked = location.isFromMockProvider
                 params.putOpt("mocked", mocked)
diff --git a/sdk/src/main/java/io/radar/sdk/RadarSettings.kt b/sdk/src/main/java/io/radar/sdk/RadarSettings.kt
index 6737b1efa..022cbf6f5 100644
--- a/sdk/src/main/java/io/radar/sdk/RadarSettings.kt
+++ b/sdk/src/main/java/io/radar/sdk/RadarSettings.kt
@@ -37,6 +37,8 @@ internal object RadarSettings {
     private const val KEY_LAST_APP_OPEN_TIME = "last_app_open_time"
     private const val KEY_SHARING = "sharing"
     private const val KEY_GOOGLE_PLAY_PROJECT_NUMBER = "google_play_project_number"
+    private const val KEY_X_PLATFORM_SDK_TYPE = "x_platform_sdk_type"
+    private const val KEY_X_PLATFORM_SDK_VERSION = "x_platform_sdk_version"
 
     private const val KEY_OLD_UPDATE_INTERVAL = "dwell_delay"
     private const val KEY_OLD_UPDATE_INTERVAL_RESPONSIVE = 60000
@@ -382,4 +384,17 @@ internal object RadarSettings {
         getSharedPreferences(context).edit { putLong(KEY_GOOGLE_PLAY_PROJECT_NUMBER, googlePlayProjectNumber) }
     }
 
+    internal fun isXPlatform(context: Context): Boolean {
+        return getSharedPreferences(context).contains(KEY_X_PLATFORM_SDK_TYPE) &&
+                getSharedPreferences(context).contains(KEY_X_PLATFORM_SDK_VERSION)
+    }
+
+    internal fun getXPlatformSDKType(context: Context): String? {
+        return getSharedPreferences(context).getString(KEY_X_PLATFORM_SDK_TYPE, null);
+    }
+
+    internal fun getXPlatformSDKVersion(context: Context): String? {
+        return getSharedPreferences(context).getString(KEY_X_PLATFORM_SDK_VERSION, null);
+    }
+
 }
\ No newline at end of file