diff --git a/library/src/main/java/org/xmtp/android/library/Client.kt b/library/src/main/java/org/xmtp/android/library/Client.kt
index 0bc5246c1..e2dc101f5 100644
--- a/library/src/main/java/org/xmtp/android/library/Client.kt
+++ b/library/src/main/java/org/xmtp/android/library/Client.kt
@@ -208,6 +208,10 @@ class Client() {
         return Pair(ffiClient, dbPath)
     }
 
+    fun signWithInstallationKey(message: String): ByteArray {
+        return ffiClient.signWithInstallationKey(message)
+    }
+
     fun findGroup(groupId: String): Group? {
         return try {
             Group(this, ffiClient.conversation(groupId.hexToByteArray()))