diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..e40c93f
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Wiktor Starczewski
+
+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 14fe11e..80e2d34 100644
--- a/README.md
+++ b/README.md
@@ -343,3 +343,7 @@ Agent flags (off by default; require --enable-agent):
 - **Single MCP surface.** Agent tools register alongside the read-only transcript tools on the same `mcp.Server` instance. Tailnet binding, bearer token, claude-md discoverability, and the rest of the operational story are unchanged whether `--enable-agent` is on or off.
 - **`claude` is the only runtime dependency.** Hearsay imports just `github.com/modelcontextprotocol/go-sdk` and a handful of stdlib-adjacent helpers; everything else routes through the spawned Claude Code subprocess.
 
+## License
+
+MIT — see [LICENSE](./LICENSE).
+