diff --git a/financial-connections/src/main/java/com/stripe/android/financialconnections/FinancialConnectionsSheetViewModel.kt b/financial-connections/src/main/java/com/stripe/android/financialconnections/FinancialConnectionsSheetViewModel.kt
index 071b07291e1..01146f0a3df 100644
--- a/financial-connections/src/main/java/com/stripe/android/financialconnections/FinancialConnectionsSheetViewModel.kt
+++ b/financial-connections/src/main/java/com/stripe/android/financialconnections/FinancialConnectionsSheetViewModel.kt
@@ -114,8 +114,11 @@ internal class FinancialConnectionsSheetViewModel @Inject constructor(
     private fun fetchManifest() {
         viewModelScope.launch {
             kotlin.runCatching {
-                prepareStandardRequestManager()
-                getOrFetchSync(refetchCondition = Always)
+                val attestationInitialized = prepareStandardRequestManager()
+                getOrFetchSync(
+                    refetchCondition = Always,
+                    attestationInitialized = attestationInitialized
+                )
             }.onFailure {
                 finishWithResult(stateFlow.value, Failed(it))
             }.onSuccess {
diff --git a/financial-connections/src/main/java/com/stripe/android/financialconnections/domain/GetOrFetchSync.kt b/financial-connections/src/main/java/com/stripe/android/financialconnections/domain/GetOrFetchSync.kt
index 14675925814..20efec7b002 100644
--- a/financial-connections/src/main/java/com/stripe/android/financialconnections/domain/GetOrFetchSync.kt
+++ b/financial-connections/src/main/java/com/stripe/android/financialconnections/domain/GetOrFetchSync.kt
@@ -18,12 +18,14 @@ internal class GetOrFetchSync @Inject constructor(
 ) {
 
     suspend operator fun invoke(
-        refetchCondition: RefetchCondition = RefetchCondition.None
+        refetchCondition: RefetchCondition = RefetchCondition.None,
+        attestationInitialized: Boolean? = null
     ): SynchronizeSessionResponse {
         return repository.getOrSynchronizeFinancialConnectionsSession(
             clientSecret = configuration.financialConnectionsSessionClientSecret,
             applicationId = applicationId,
             reFetchCondition = refetchCondition::shouldReFetch,
+            attestationInitialized = attestationInitialized
         )
     }
 
diff --git a/financial-connections/src/main/java/com/stripe/android/financialconnections/repository/FinancialConnectionsManifestRepository.kt b/financial-connections/src/main/java/com/stripe/android/financialconnections/repository/FinancialConnectionsManifestRepository.kt
index a7d99acb296..934867cca18 100644
--- a/financial-connections/src/main/java/com/stripe/android/financialconnections/repository/FinancialConnectionsManifestRepository.kt
+++ b/financial-connections/src/main/java/com/stripe/android/financialconnections/repository/FinancialConnectionsManifestRepository.kt
@@ -40,6 +40,7 @@ internal interface FinancialConnectionsManifestRepository {
     suspend fun getOrSynchronizeFinancialConnectionsSession(
         clientSecret: String,
         applicationId: String,
+        attestationInitialized: Boolean?,
         reFetchCondition: (SynchronizeSessionResponse) -> Boolean
     ): SynchronizeSessionResponse
 
@@ -206,15 +207,17 @@ private class FinancialConnectionsManifestRepositoryImpl(
     override suspend fun getOrSynchronizeFinancialConnectionsSession(
         clientSecret: String,
         applicationId: String,
+        attestationInitialized: Boolean?,
         reFetchCondition: (SynchronizeSessionResponse) -> Boolean
     ): SynchronizeSessionResponse = mutex.withLock {
         val cachedSync = cachedSynchronizeSessionResponse?.takeUnless(reFetchCondition)
-        return cachedSync ?: synchronize(applicationId, clientSecret)
+        return cachedSync ?: synchronize(applicationId, clientSecret, attestationInitialized)
     }
 
     private suspend fun synchronize(
         applicationId: String,
         clientSecret: String,
+        attestationInitialized: Boolean?,
     ): SynchronizeSessionResponse = requestExecutor.execute(
         apiRequestFactory.createPost(
             url = synchronizeSessionUrl,
@@ -228,6 +231,8 @@ private class FinancialConnectionsManifestRepositoryImpl(
                     "forced_authflow_version" to "v3",
                     PARAMS_FULLSCREEN to true,
                     PARAMS_HIDE_CLOSE_BUTTON to true,
+                    PARAMS_SUPPORT_APP_VERIFICATION to attestationInitialized,
+                    PARAMS_VERIFY_APP_ID to applicationId.takeIf { attestationInitialized == true },
                     NetworkConstants.PARAMS_APPLICATION_ID to applicationId
                 ),
                 NetworkConstants.PARAMS_CLIENT_SECRET to clientSecret
@@ -523,6 +528,8 @@ private class FinancialConnectionsManifestRepositoryImpl(
     companion object {
         internal const val PARAMS_FULLSCREEN = "fullscreen"
         internal const val PARAMS_HIDE_CLOSE_BUTTON = "hide_close_button"
+        internal const val PARAMS_SUPPORT_APP_VERIFICATION = "supports_app_verification"
+        internal const val PARAMS_VERIFY_APP_ID = "verified_app_id"
 
         internal const val synchronizeSessionUrl: String =
             "${ApiRequest.API_HOST}/v1/financial_connections/sessions/synchronize"