diff --git a/Doc/deprecations/c-api-pending-removal-in-future.rst b/Doc/deprecations/c-api-pending-removal-in-future.rst
index 8fc1c80c35d092..0ed1d607174525 100644
--- a/Doc/deprecations/c-api-pending-removal-in-future.rst
+++ b/Doc/deprecations/c-api-pending-removal-in-future.rst
@@ -35,6 +35,8 @@ although there is currently no date scheduled for their removal.
 * :c:member:`!PyBytesObject.ob_shash` member:
   call :c:func:`PyObject_Hash` instead.
 * :c:member:`!PyDictObject.ma_version_tag` member.
+* :c:func::c:func:`!_PyLong_FromDigits`
+  Use instead :c:struct:`PyLongWriter` API.
 * Thread Local Storage (TLS) API:
 
   * :c:func:`PyThread_create_key`:
diff --git a/Include/cpython/longintrepr.h b/Include/cpython/longintrepr.h
index 357477b60d9a5a..cdb99509b6b50b 100644
--- a/Include/cpython/longintrepr.h
+++ b/Include/cpython/longintrepr.h
@@ -105,7 +105,7 @@ PyAPI_FUNC(PyLongObject*) _PyLong_New(Py_ssize_t);
 // Return a copy of src.
 PyAPI_FUNC(PyObject*) _PyLong_Copy(PyLongObject *src);
 
-PyAPI_FUNC(PyLongObject*) _PyLong_FromDigits(
+Py_DEPRECATED(3.14) PyAPI_FUNC(PyLongObject*) _PyLong_FromDigits(
     int negative,
     Py_ssize_t digit_count,
     digit *digits);
diff --git a/Misc/NEWS.d/next/C_API/2024-12-14-10-14-27.gh-issue-127937.-tT1KP.rst b/Misc/NEWS.d/next/C_API/2024-12-14-10-14-27.gh-issue-127937.-tT1KP.rst
new file mode 100644
index 00000000000000..ad74d45f17d250
--- /dev/null
+++ b/Misc/NEWS.d/next/C_API/2024-12-14-10-14-27.gh-issue-127937.-tT1KP.rst
@@ -0,0 +1,2 @@
+Deprecate the :c:func:`!_PyLong_FromDigits`, use instead
+:c:struct:`PyLongWriter` API.  Patch by Sergey B Kirpichev.