diff --git a/Sources/ElixxirDAppsSDK/Login.swift b/Sources/ElixxirDAppsSDK/Login.swift
index e89fe54d7ddba5892170fbfcbdb030d53e3b3be0..ec82489280e8c5e03c36533a368e2a5920705368 100644
--- a/Sources/ElixxirDAppsSDK/Login.swift
+++ b/Sources/ElixxirDAppsSDK/Login.swift
@@ -2,33 +2,46 @@ import Bindings
 import XCTestDynamicOverlay
 
 public struct Login {
-  public var run: (Int, AuthCallbacks?, Data, Data) throws -> E2E
+  public var run: (Bool, Int, AuthCallbacks?, Data, Data) throws -> E2E
 
   public func callAsFunction(
+    ephemeral: Bool,
     cmixId: Int,
     authCallbacks: AuthCallbacks? = nil,
     identity: Data,
     e2eParamsJSON: Data
   ) throws -> E2E {
-    try run(cmixId, authCallbacks, identity, e2eParamsJSON)
+    try run(ephemeral, cmixId, authCallbacks, identity, e2eParamsJSON)
   }
 }
 
 extension Login {
-  public static let live = Login { cmixId, authCallbacks, identity, e2eParamsJSON in
+  public static let live = Login { ephemeral, cmixId, authCallbacks, identity, e2eParamsJSON in
     var error: NSError?
-    let bindingsE2E = BindingsLogin(
-      cmixId,
-      authCallbacks?.makeBindingsAuthCallbacks(),
-      identity,
-      e2eParamsJSON,
-      &error
-    )
+    let bindingsE2E: BindingsE2e?
+    if ephemeral {
+      bindingsE2E = BindingsLogin(
+        cmixId,
+        authCallbacks?.makeBindingsAuthCallbacks(),
+        identity,
+        e2eParamsJSON,
+        &error
+      )
+    } else {
+      bindingsE2E = BindingsLoginEphemeral(
+        cmixId,
+        authCallbacks?.makeBindingsAuthCallbacks(),
+        identity,
+        e2eParamsJSON,
+        &error
+      )
+    }
     if let error = error {
       throw error
     }
     guard let bindingsE2E = bindingsE2E else {
-      fatalError("BindingsLogin returned `nil` without providing error")
+      let functionName = "BindingsLogin\(ephemeral ? "Ephemeral" : "")"
+      fatalError("\(functionName) returned `nil` without providing error")
     }
     return .live(bindingsE2E)
   }