diff --git a/library/libsds.h b/library/libsds.h
index c11a432..5d25140 100644
--- a/library/libsds.h
+++ b/library/libsds.h
@@ -23,13 +23,10 @@ typedef void (*SdsCallBack) (int callerRet, const char* msg, size_t len, void* u
 
 // --- Core API Functions ---
 
-/**
- * @brief Creates a new ReliabilityManager instance.
- * @param channelId A unique identifier for the communication channel.
- * @return An opaque handle (void*) representing the instance, or NULL on failure.
- */
+
 void* NewReliabilityManager(const char* channelId, SdsCallBack callback, void* userData);
 
+void SetEventCallback(void* ctx, SdsCallBack callback, void* userData);
 
 #ifdef __cplusplus
 }
diff --git a/library/libsds.nim b/library/libsds.nim
index 767586c..903bbec 100644
--- a/library/libsds.nim
+++ b/library/libsds.nim
@@ -140,5 +140,12 @@ proc NewReliabilityManager(
 
   return ctx
 
+proc SetEventCallback(
+    ctx: ptr SdsContext, callback: SdsCallBack, userData: pointer
+) {.dynlib, exportc.} =
+  initializeLibrary()
+  ctx[].eventCallback = cast[pointer](callback)
+  ctx[].eventUserData = userData
+
 ### End of exported procs
 ################################################################################