diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..c20de5b
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 YCCD
+
+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 e048ee8..5695122 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,47 @@
-# proxy-checker-rs
+# Proxy Checker
+
+This repository provides an open-source server-side API for detecting if a client is using a proxy. The detection method compares the Round-Trip Time (RTT) of both the TLS and TCP layers. This differential analysis helps identify the presence of a proxy.
+
+## Usage
+
+Clone the repository:
+
+```bash
+git clone https://github.com/YCCDSZXH/proxy-checker-rs.git
+cd proxy-checker-rs
+```
+
+Build
+
+```bash
+cargo b
+```
+
+Configure certificate 
+```bash
+openssl req -new -newkey rsa:2048 -days 365 -nodes -x509 -keyout server.key -out server.crt
+```
+
+Run the server:
+
+```bash
+cargo r
+```
+
+Make a request to the detection endpoint:
+
+```bash
+curl http://localhost:8443 -k
+```
+If you use self generate certificate, you need `-k` to skip certificate verify
+
+The API will return a JSON response indicating whether a proxy was detected.
+
+## Contributing
+
+Contributions are welcome! Feel free to submit issues, fork the repository, and create pull requests.
+
+## License
+
+This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for more details.
+