diff --git a/be/app/api/v1/__init__.py b/be/app/api/v1/__init__.py
index c07b19f..7f550dd 100644
--- a/be/app/api/v1/__init__.py
+++ b/be/app/api/v1/__init__.py
@@ -1,5 +1,5 @@
 from flask import Blueprint
-from ...api.v1 import index, project, files, anno
+from ...api.v1 import index, project, files, anno, ai
 
 
 def create_blueprint_v1():
@@ -9,5 +9,6 @@ def create_blueprint_v1():
     project.api.register(bp_v1, url_prefix='/project')
     anno.api.register(bp_v1, url_prefix='/anno')
     files.api.register(bp_v1, url_prefix='/files')
+    ai.api.register(bp_v1, url_prefix='/ai')
 
     return bp_v1
diff --git a/be/app/api/v1/ai.py b/be/app/api/v1/ai.py
new file mode 100644
index 0000000..7bfec33
--- /dev/null
+++ b/be/app/api/v1/ai.py
@@ -0,0 +1,55 @@
+from app.libs.redprint import RedPrint
+import time
+from flask import request
+import json
+import os
+
+from ...libs.tools import read_file, write_json, read_json_file, make_dir
+
+import auto_anno_2 as aa
+
+api = RedPrint('ai')
+
+class ReturnInfo:
+    def __init__(self):
+        self.errCode = 0
+        self.errMsg = ''
+        self.info = []
+
+@api.route('/nlp/cls', methods=['POST'])
+def nlp_cls():
+    ret_info = ReturnInfo()
+    try:
+        j = request.get_json()
+        texts = j['texts']
+        types = j['types']
+        annos = []
+        for text in texts:
+            anno = aa.cls(text, types)
+            annos.append(anno)
+        ret_info.info = annos
+    except Exception as e:
+        print(e)
+        ret_info.errCode = 404
+        ret_info.errMsg = str(e) 
+
+    return ret_info.__dict__
+
+@api.route('/nlp/ner', methods=['POST'])
+def nlp_ner():
+    ret_info = ReturnInfo()
+    try:
+        j = request.get_json()
+        texts = j['texts']
+        types = j['types']
+        annos = []
+        for text in texts:
+            anno = aa.ner(text, types)
+            annos.append(anno)
+        ret_info.info = annos
+    except Exception as e:
+        print(e)
+        ret_info.errCode = 404
+        ret_info.errMsg = str(e) 
+
+    return ret_info.__dict__
diff --git a/be/requirements.txt b/be/requirements.txt
new file mode 100644
index 0000000..8c25f5f
--- /dev/null
+++ b/be/requirements.txt
@@ -0,0 +1,2 @@
+flask
+auto_anno_2