diff --git a/src/main/pumpnet/lib/protocol-prinet.h b/src/main/pumpnet/lib/protocol-prinet.h
new file mode 100644
index 0000000..b9e3d4c
--- /dev/null
+++ b/src/main/pumpnet/lib/protocol-prinet.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdlib.h>
+
+#define PUMPNET_LIB_PRINET_ENDPOINT "/prinet/v1"
+
+struct pumpnet_lib_prinet_req {
+    uint64_t trace_id;
+    uint64_t machine_id;
+    uint32_t size;
+    uint8_t data[];
+} __attribute__((__packed__));
+
+struct pumpnet_lib_prinet_resp {
+    uint32_t size;
+    uint8_t data[];
+} __attribute__((__packed__));
\ No newline at end of file