diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..8c0eaad
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025-2026 CareCode
+
+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 122a118..dceaa17 100644
--- a/README.md
+++ b/README.md
@@ -777,7 +777,15 @@ style: 코드 포맷팅 (기능 변경 없음)
 
 ## 라이선스
 
-이 프로젝트는 **MIT 라이선스**를 따릅니다. 자세한 내용은 [LICENSE](LICENSE) 파일을 참고하세요.
+이 프로젝트의 **소스 코드**는 **MIT 라이선스**를 따릅니다. Copyright (c) 2025-2026 CareCode.
+전문은 [LICENSE](LICENSE) 파일에 있습니다.
+
+코드에 담긴 **외부 데이터는 MIT 적용 대상이 아니며** 각 제공처의 이용 조건을 따릅니다.
+
+| 데이터 | 출처 | 쓰이는 곳 |
+|--------|------|-----------|
+| 어린이집·유치원·병원·지원금 정보 | 공공데이터포털, 보육통합정보, 유치원알리미, 서울 열린데이터광장 | 동기화로 받아오며 저장소에 포함하지 않음 |
+| 아동 성장 표준(LMS) | WHO Child Growth Standards | `domain/health/growth/GrowthStandardTable` |
 
 ---