diff --git a/License.md b/License.md
new file mode 100644
index 0000000..50e4ac4
--- /dev/null
+++ b/License.md
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Airframes 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 e361a7a..815c4c4 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ This is a no-op documentation tweak to verify repository access, build/lint, tes
 # acars-decoder-typescript
 
 [![NPM Version](https://badge.fury.io/js/@airframes%2Facars-decoder.svg)](https://badge.fury.io/js/@airframes%2Facars-decoder)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](./License.md)
 [![GitHub Actions Workflow Status](https://github.com/airframesio/acars-decoder-typescript/actions/workflows/yarn-test.yml/badge.svg)
 ](https://github.com/airframesio/acars-decoder-typescript/actions/workflows/yarn-test.yml)
 ![CodeRabbit Pull Request Reviews](https://img.shields.io/coderabbit/prs/github/airframesio/acars-decoder-typescript?utm_source=oss&utm_medium=github&utm_campaign=airframesio%2Facars-decoder-typescript&labelColor=171717&color=FF570A&link=https%3A%2F%2Fcoderabbit.ai&label=CodeRabbit+Reviews)
diff --git a/package.json b/package.json
index 6714637..960b16b 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/airframesio/acars-decoder-typescript#readme",
   "author": "Kevin Elliott <kevin@welikeinc.com>",
-  "license": "UNLICENSED",
+  "license": "MIT",
   "dependencies": {
     "pako": "^1.0.11"
   },