diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..dd8e631
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 KwiTsukasa / KT contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index e4bf061..1cef6ff 100644
--- a/README.md
+++ b/README.md
@@ -43,3 +43,9 @@ pnpm dev
 5. 根据 schema 的 `properties/items/type/default/example` 生成兜底示例
 
 响应参数按标准 schema 展开，不读取 Knife4j 私有字段。
+
+## 来源与许可证
+
+| 一级来源 | 使用方式 | License |
+| --- | --- | --- |
+| [Knife4j](https://github.com/xiaoymin/knife4j) | Swagger/OpenAPI 文档 UI 的视觉、交互和接口树风格参考 | Apache-2.0 |