diff --git a/temp_file_trans_client/api.py b/temp_file_trans_client/api.py
new file mode 100644
index 0000000..b7ff67d
--- /dev/null
+++ b/temp_file_trans_client/api.py
@@ -0,0 +1,47 @@
+import requests
+import json
+import os
+
+CONFIG_PATH = os.path.join(os.path.dirname(__file__), 'config.json')
+
+def load_config():
+    if os.path.exists(CONFIG_PATH):
+        with open(CONFIG_PATH, 'r') as f:
+            return json.load(f)
+    return {"server_url": "http://localhost:5000", "default_expiry": "24h"}
+
+def save_config(config):
+    with open(CONFIG_PATH, 'w') as f:
+        json.dump(config, f, indent=4)
+
+def upload_file(filepath, expiry='24h', server_url=None, progress_callback=None):
+    if server_url is None:
+        config = load_config()
+        server_url = config.get('server_url', 'http://localhost:5000')
+    
+    url = f"{server_url}/api/upload"
+    
+    with open(filepath, 'rb') as f:
+        files = {'file': (os.path.basename(filepath), f)}
+        data = {'expiry': expiry}
+        
+        response = requests.post(url, files=files, data=data)
+    
+    if response.status_code == 200:
+        return response.json()
+    else:
+        error_msg = response.json().get('error', '未知错误')
+        raise Exception(f"上传失败: {error_msg}")
+
+def get_file_info(file_id, server_url=None):
+    if server_url is None:
+        config = load_config()
+        server_url = config.get('server_url', 'http://localhost:5000')
+    
+    url = f"{server_url}/api/file/{file_id}"
+    response = requests.get(url)
+    
+    if response.status_code == 200:
+        return response.json()
+    else:
+        return None
\ No newline at end of file