diff --git a/connections/c/nc.cc b/connections/c/nc.cc
index 128eeb29..df1b8d40 100644
--- a/connections/c/nc.cc
+++ b/connections/c/nc.cc
@@ -527,7 +527,7 @@ void NcInjectEndpoint(NC_INSTANCE instance, const NC_DATA* service_id,
   }
 
   ::nearby::connections::OutOfBandConnectionMetadata
-      cpp_out_of_band_connection_metadata;
+      cpp_out_of_band_connection_metadata{};
   cpp_out_of_band_connection_metadata.endpoint_id = metadata->endpoint_id;
   cpp_out_of_band_connection_metadata.endpoint_info = {
       metadata->endpoint_info.data,
@@ -537,6 +537,10 @@ void NcInjectEndpoint(NC_INSTANCE instance, const NC_DATA* service_id,
   cpp_out_of_band_connection_metadata.remote_bluetooth_mac_address = {
       metadata->remote_bluetooth_mac_address.data,
       static_cast<size_t>(metadata->remote_bluetooth_mac_address.size)};
+  cpp_out_of_band_connection_metadata.ble_peripheral_native_id = {
+      metadata->ble_peripheral_native_id.data,
+      static_cast<size_t>(metadata->ble_peripheral_native_id.size)};
+  cpp_out_of_band_connection_metadata.psm = metadata->psm;
 
   nc_context->core->InjectEndpoint(
       std::string(service_id->data, service_id->size),
diff --git a/connections/c/nc_types.h b/connections/c/nc_types.h
index 5e3364df..da202844 100644
--- a/connections/c/nc_types.h
+++ b/connections/c/nc_types.h
@@ -305,6 +305,10 @@ typedef struct NC_OUT_OF_BAND_CONNECTION_METADATA {
   // generated such that no two IDs are identical.
   int endpoint_id;
 
+  //
+  // Properties for BLUETOOTH out-of-band connections.
+  //
+
   // Endpoint info to use for the injected connection; will be included in the
   // endpoint_found_cb callback. Should uniquely identify the InjectEndpoint()
   // call so that the client which made the call can verify the endpoint
@@ -315,6 +319,16 @@ typedef struct NC_OUT_OF_BAND_CONNECTION_METADATA {
 
   // Used for Bluetooth connections.
   NC_DATA remote_bluetooth_mac_address;
+
+  //
+  // Properties for BLE out-of-band connections.
+  //
+
+  // The BLE peripheral native ID to use for the BLE connection.
+  NC_DATA ble_peripheral_native_id;
+
+  // The Protocol/Service Multiplexer(psm) value to use for the BLE connection.
+  int psm;
 } NC_OUT_OF_BAND_CONNECTION_METADATA, *PNC_OUT_OF_BAND_CONNECTION_METADATA;
 
 // Defines the minimal function interface for reading phenotype flags. Callbacks
diff --git a/connections/out_of_band_connection_metadata.h b/connections/out_of_band_connection_metadata.h
index d9cb3644..56513e71 100644
--- a/connections/out_of_band_connection_metadata.h
+++ b/connections/out_of_band_connection_metadata.h
@@ -17,9 +17,7 @@
 #include <string>
 
 #include "connections/medium_selector.h"
-#include "connections/strategy.h"
 #include "internal/platform/byte_array.h"
-#include "proto/connections_enums.pb.h"
 
 namespace nearby {
 namespace connections {
@@ -47,6 +45,19 @@ struct OutOfBandConnectionMetadata {
 
   // Used for Bluetooth connections.
   ByteArray remote_bluetooth_mac_address;
+
+  //
+  // Properties for BLE out-of-band connections.
+  //
+
+  // The BLE peripheral native ID to use for the BLE connection.
+  // On Apple platform, the native ID is NSUUID in string format like
+  // "E621E1F8-C36C-495A-93FC-0C247A3E6E5F", other platform will be MAC address
+  // as string format like "0C:24:7A:3E:6E:5F".
+  std::string ble_peripheral_native_id;
+
+  // The Protocol/Service Multiplexer(psm) value to use for the BLE connection.
+  int psm;
 };
 
 }  // namespace connections