diff --git a/platforms/arduino/docs/update_apis.py b/platforms/arduino/docs/update_apis.py
new file mode 100755
index 000000000..f8bb3f92a
--- /dev/null
+++ b/platforms/arduino/docs/update_apis.py
@@ -0,0 +1,78 @@
+#!/usr/bin/env python
+import os
+import re
+import sys 
+
+class State:
+    SearchStartAPI = 0
+    RemoveEmptyLinesAfterAPIStart = 1
+    SearchEndAPI = 2
+    DoneAPI = 3
+
+docs_folder = "docs/appendix/"
+appendix_file = docs_folder + "apis.md"
+btstack_folder = "../../../"
+code_identation = "    "
+
+api_header = """
+
+## API_TITLE API
+<a name ="appendix:API_LABLE"></a>
+
+"""
+
+api_ending = """
+"""
+
+# [file_name, api_title, api_lable]
+list_of_apis = [ 
+    [btstack_folder+"platforms/arduino/BTstack.h", "BTstack", "api_btstack"],
+]
+
+def replacePlaceholder(template, title, lable):
+    api_title = title + " API"
+    snippet = template.replace("API_TITLE", title).replace("API_LABLE", lable)
+    return snippet
+
+def writeAPI(fout, infile_name):
+    global code_identation
+    state = State.SearchStartAPI
+    with open(infile_name, 'rb') as fin:
+        for line in fin:
+            if state == State.SearchStartAPI:
+                parts = re.match('\s*(/\*).*API_START.*(\*/)',line)
+                if parts:
+                    state = State.RemoveEmptyLinesAfterAPIStart
+                    continue
+            
+            if state == State.RemoveEmptyLinesAfterAPIStart:
+                if line == "" or line == "\n":
+                    continue
+                state = State.SearchEndAPI
+
+            if state == State.SearchEndAPI:
+                parts = re.match('\s*(/\*).*API_END.*(\*/)',line)
+                if parts:
+                    state = State.DoneAPI
+                    return
+                fout.write(code_identation + line)
+
+def process_and_write_api(fout, api_tuple):
+    infile_name = api_tuple[0]
+    if not infile_name:
+        return
+    
+    api_title = api_tuple[1]
+    api_lable = api_tuple[2]
+
+    fout.write(replacePlaceholder(api_header, api_title, api_lable))
+    writeAPI(fout, infile_name)
+
+
+with open(appendix_file, 'w') as aout:
+    for api_tuple in list_of_apis:
+        infile_name = api_tuple[0]
+        if not infile_name:
+            continue
+        process_and_write_api(aout, api_tuple)
+