diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..66a6b42
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Gleb (gusik.tech)
+
+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/NOTICE.md b/NOTICE.md
new file mode 100644
index 0000000..73e006f
--- /dev/null
+++ b/NOTICE.md
@@ -0,0 +1,15 @@
+# Third-party components
+
+## Xray-core
+
+This project bundles an **unmodified** binary of [Xray-core](https://github.com/XTLS/Xray-core)
+(pinned version `v26.3.27`) and runs it as a separate process. Xray-core is licensed under the
+**Mozilla Public License 2.0 (MPL-2.0)**.
+
+- Xray-core source: https://github.com/XTLS/Xray-core
+- Its `LICENSE` ships inside the release archive and is extracted to
+  `%APPDATA%\ClaudeProxy\bin\LICENSE` at runtime.
+
+Bundling and invoking Xray-core as an independent executable ("mere aggregation") does not place
+this project's own code (MIT-licensed, see `LICENSE`) under the MPL. Redistribution of the Xray
+binary is permitted by MPL-2.0 provided its license text is included, which it is.
diff --git a/README.md b/README.md
index 56c0fc7..8fa0deb 100644
--- a/README.md
+++ b/README.md
@@ -92,3 +92,8 @@ powershell -ExecutionPolicy Bypass -File build-native.ps1
   аппы может не работать.
 - Firewall-правило пинит IP прокси (резолв при включении). Сменился IP — переключи рубильник.
 - Лок переживает перезагрузку; снимается выключением рубильника.
+
+## Лицензия
+
+Код проекта — **MIT** (см. `LICENSE`). Встроенный **Xray-core** — отдельный компонент под
+**MPL-2.0** (см. `NOTICE.md`); он запускается как отдельный процесс и не меняет лицензию проекта.