diff --git a/src/main/pumpnet/lib/usbprofile.c b/src/main/pumpnet/lib/usbprofile.c
new file mode 100644
index 0000000..94d2b3c
--- /dev/null
+++ b/src/main/pumpnet/lib/usbprofile.c
@@ -0,0 +1,294 @@
+#define LOG_MODULE "pumpnet-usbprofile"
+
+#include <string.h>
+
+#include "pumpnet/lib/base.h"
+#include "pumpnet/lib/http.h"
+#include "pumpnet/lib/protocol-usbprofile.h"
+#include "pumpnet/lib/usbprofile.h"
+
+#include "util/log.h"
+#include "util/mem.h"
+#include "util/rand.h"
+#include "util/str.h"
+
+#define RECV_BUFFER_SIZE 1024 * 1024
+#define RETRY_COUNT_ON_ERROR 10
+#define RETRY_BACKOFF_MS 2000
+
+static enum asset_game_version pumpnet_lib_game;
+static char* pumpnet_lib_server_addr;
+static uint64_t pumpnet_lib_machine_id;
+
+static char* pumpnet_lib_server_endpoint_save;
+static char* pumpnet_lib_server_endpoint_rank;
+
+static char* _pumpnet_lib_get_endpoint_save(enum asset_game_version game, const char* server_addr)
+{
+    switch (game) {
+        case ASSET_GAME_VERSION_NX2:
+            return util_str_merge(server_addr, USBPROFILE_ENDPOINT "/nx2/save");
+
+        default:
+            log_die("Unsupported game version %d", game);
+            return NULL;
+    }
+}
+
+static char* _pumpnet_lib_get_endpoint_rank(enum asset_game_version game, const char* server_addr)
+{
+    switch (game) {
+        case ASSET_GAME_VERSION_NX2:
+            return util_str_merge(server_addr, USBPROFILE_ENDPOINT "/nx2/rank");
+
+        default:
+            log_die("Unsupported game version %d", game);
+            return NULL;
+    }
+}
+
+static bool _pumpnet_lib_get_rank(uint64_t player_ref_id, void* buffer, size_t size)
+{
+    log_assert(buffer);
+
+    struct pumpnet_lib_usbprofile_get_rank_req req;
+    struct pumpnet_lib_usbprofile_get_rank_resp* resp;
+    size_t resp_size;
+    uint64_t trace_id;
+
+    trace_id = pumpnet_lib_base_generate_tracing_id();
+
+    req.trace_id = trace_id;
+    req.machine_id = pumpnet_lib_machine_id;
+    req.player_ref_id = player_ref_id;
+
+    resp_size = sizeof(struct pumpnet_lib_usbprofile_get_rank_resp) + size;
+    resp = util_xmalloc(resp_size);
+
+    log_info("[%llX][%llX] Get rank", trace_id, player_ref_id);
+
+    if (pumpnet_lib_base_get_put(
+            trace_id,
+            pumpnet_lib_server_endpoint_rank,
+            &req,
+            sizeof(req),
+            resp,
+            resp_size,
+            false,
+            RETRY_COUNT_ON_ERROR,
+            RETRY_BACKOFF_MS) < 0) {
+        free(resp);
+        return false;
+    }
+
+    if (resp->size > size) {
+        log_error("[%llX] Rank resp size greater than buffer size: %d > %d",
+            trace_id,
+            resp->size,
+            size);
+        free(resp);
+        return false;
+    }
+
+    memcpy(buffer, resp->data, resp->size);
+
+    free(resp);
+
+    return true;
+}
+
+static bool _pumpnet_lib_get_save(uint64_t player_ref_id, void* buffer, size_t size)
+{
+    log_assert(buffer);
+
+    struct pumpnet_lib_usbprofile_get_save_req req;
+    struct pumpnet_lib_usbprofile_get_save_resp* resp;
+    size_t resp_size;
+    uint64_t trace_id;
+
+    trace_id = pumpnet_lib_base_generate_tracing_id();
+
+    req.trace_id = trace_id;
+    req.machine_id = pumpnet_lib_machine_id;
+    req.player_ref_id = player_ref_id;
+
+    resp_size = sizeof(struct pumpnet_lib_usbprofile_get_save_resp) + size;
+    resp = util_xmalloc(resp_size);
+
+    log_info("[%llX][%llX] Get save", trace_id, player_ref_id);
+
+    if (pumpnet_lib_base_get_put(
+            trace_id,
+            pumpnet_lib_server_endpoint_save,
+            &req,
+            sizeof(req),
+            resp,
+            resp_size,
+            false,
+            RETRY_COUNT_ON_ERROR,
+            RETRY_BACKOFF_MS) < 0) {
+        free(resp);
+        return false;
+    }
+
+    if (resp->size > size) {
+        log_error("[%llX] Save resp size greater than buffer size: %d > %d",
+            trace_id,
+            resp->size,
+            size);
+        free(resp);
+        return false;
+    }
+
+    memcpy(buffer, resp->data, resp->size);
+
+    free(resp);
+
+    return true;
+}
+
+static bool _pumpnet_lib_put_rank(uint64_t player_ref_id, const void* buffer, size_t size)
+{
+    log_assert(buffer);
+
+    struct pumpnet_lib_usbprofile_put_rank_req* req;
+    struct pumpnet_lib_usbprofile_put_rank_resp resp;
+    size_t req_size;
+    uint64_t trace_id;
+
+    trace_id = pumpnet_lib_base_generate_tracing_id();
+
+    req_size = sizeof(struct pumpnet_lib_usbprofile_put_rank_req) + size;
+    req = util_xmalloc(req_size);
+
+    req->trace_id = trace_id;
+    req->machine_id = pumpnet_lib_machine_id;
+    req->player_ref_id = player_ref_id;
+    req->size = size;
+    memcpy(req->data, buffer, size);
+
+    log_info("[%llX][%llX] Put rank", trace_id, player_ref_id);
+
+    if (pumpnet_lib_base_get_put(
+            trace_id,
+            pumpnet_lib_server_endpoint_rank,
+            req,
+            req_size,
+            &resp,
+            sizeof(resp),
+            true,
+            RETRY_COUNT_ON_ERROR,
+            RETRY_BACKOFF_MS) < 0) {
+        free(req);
+        return false;
+    }
+
+    free(req);
+
+    return true;
+}
+
+static bool _pumpnet_lib_put_save(uint64_t player_ref_id, const void* buffer, size_t size)
+{
+    log_assert(buffer);
+
+    struct pumpnet_lib_usbprofile_put_save_req* req;
+    struct pumpnet_lib_usbprofile_put_save_resp resp;
+    size_t req_size;
+    uint64_t trace_id;
+
+    trace_id = pumpnet_lib_base_generate_tracing_id();
+
+    req_size = sizeof(struct pumpnet_lib_usbprofile_put_save_req) + size;
+    req = util_xmalloc(req_size);
+
+    req->trace_id = trace_id;
+    req->machine_id = pumpnet_lib_machine_id;
+    req->player_ref_id = player_ref_id;
+    req->size = size;
+    memcpy(req->data, buffer, size);
+
+    log_info("[%llX][%llX] Put save", trace_id, player_ref_id);
+
+    if (pumpnet_lib_base_get_put(
+            trace_id,
+            pumpnet_lib_server_endpoint_save,
+            req,
+            req_size,
+            &resp,
+            sizeof(resp),
+            true,
+            RETRY_COUNT_ON_ERROR,
+            RETRY_BACKOFF_MS) < 0) {
+        free(req);
+        return false;
+    }
+
+    free(req);
+
+    return true;
+}
+
+void pumpnet_lib_usbprofile_init(
+        enum asset_game_version game,
+        const char* server_addr,
+        uint64_t machine_id,
+        const char* cert_dir_path,
+        bool verbose_debug_log)
+{
+    pumpnet_lib_http_init(cert_dir_path, RECV_BUFFER_SIZE, verbose_debug_log);
+
+    pumpnet_lib_game = game;
+    pumpnet_lib_server_addr = util_str_dup(server_addr);
+    pumpnet_lib_machine_id = machine_id;
+
+    pumpnet_lib_server_endpoint_save = _pumpnet_lib_get_endpoint_save(game, server_addr);
+    pumpnet_lib_server_endpoint_rank = _pumpnet_lib_get_endpoint_rank(game, server_addr);
+
+    log_info("Initialized pumpnet for game %d, serveraddr %s, main endpoint version %s",
+        pumpnet_lib_game,
+        pumpnet_lib_server_addr,
+        USBPROFILE_ENDPOINT);
+}
+
+void pumpnet_lib_usbprofile_shutdown()
+{
+    free(pumpnet_lib_server_endpoint_save);
+    free(pumpnet_lib_server_endpoint_rank);
+
+    pumpnet_lib_http_shutdown();
+
+    log_info("Shut down");
+}
+
+bool pumpnet_lib_usbprofile_get(enum pumpnet_lib_usbprofile_file_type file_type, uint64_t player_ref_id, void* buffer, size_t size)
+{
+    switch (file_type) {
+        case PUMPNET_LIB_USBPROFILE_FILE_TYPE_SAVE:
+            return _pumpnet_lib_get_save(player_ref_id, buffer, size);
+
+        case PUMPNET_LIB_USBPROFILE_FILE_TYPE_RANK:
+            return _pumpnet_lib_get_rank(player_ref_id, buffer, size);
+
+        case PUMPNET_LIB_USBPROFILE_FILE_TYPE_COUNT:
+        default:
+            log_die_illegal_state();
+            return false;
+    }
+}
+
+bool pumpnet_lib_usbprofile_put(enum pumpnet_lib_usbprofile_file_type file_type, uint64_t player_ref_id, const void* buffer, size_t size)
+{
+    switch (file_type) {
+        case PUMPNET_LIB_USBPROFILE_FILE_TYPE_SAVE:
+            return _pumpnet_lib_put_save(player_ref_id, buffer, size);
+
+        case PUMPNET_LIB_USBPROFILE_FILE_TYPE_RANK:
+            return _pumpnet_lib_put_rank(player_ref_id, buffer, size);
+
+        case PUMPNET_LIB_USBPROFILE_FILE_TYPE_COUNT:
+        default:
+            log_die_illegal_state();
+            return false;
+    }
+}
\ No newline at end of file
diff --git a/src/main/pumpnet/lib/usbprofile.h b/src/main/pumpnet/lib/usbprofile.h
new file mode 100644
index 0000000..d4ec77a
--- /dev/null
+++ b/src/main/pumpnet/lib/usbprofile.h
@@ -0,0 +1,26 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "asset/game-version.h"
+
+enum pumpnet_lib_usbprofile_file_type {
+    PUMPNET_LIB_USBPROFILE_FILE_TYPE_SAVE = 0,
+    PUMPNET_LIB_USBPROFILE_FILE_TYPE_RANK = 1,
+    PUMPNET_LIB_USBPROFILE_FILE_TYPE_COUNT = 2,
+};
+
+void pumpnet_lib_usbprofile_init(
+        enum asset_game_version game,
+        const char* server_addr,
+        uint64_t machine_id,
+        const char* cert_dir_path,
+        bool verbose_debug_log);
+
+void pumpnet_lib_usbprofile_shutdown();
+
+bool pumpnet_lib_usbprofile_get(enum pumpnet_lib_usbprofile_file_type file_type, uint64_t player_ref_id, void* buffer, size_t size);
+
+bool pumpnet_lib_usbprofile_put(enum pumpnet_lib_usbprofile_file_type file_type, uint64_t player_ref_id, const void* buffer, size_t size);
\ No newline at end of file