diff --git a/bucket/kcptun.json b/bucket/kcptun.json
new file mode 100644
index 0000000000..dc70cbf774
--- /dev/null
+++ b/bucket/kcptun.json
@@ -0,0 +1,50 @@
+{
+    "homepage": "https://github.com/xtaci/kcptun",
+    "description": "A Stable & Secure Tunnel based on KCP with N:M multiplexing and FEC.",
+    "version": "20210922",
+    "license": "MIT",
+    "architecture": {
+        "64bit": {
+            "url": "https://github.com/xtaci/kcptun/releases/download/v20210922/kcptun-windows-amd64-20210922.tar.gz",
+            "hash": "sha1:68b7ee324cc03497618533f7a0358c481e3de3f0",
+            "bin": [
+                [
+                    "client_windows_amd64.exe",
+                    "kcptun-client"
+                ],
+                [
+                    "server_windows_amd64.exe",
+                    "kcptun-server"
+                ]
+            ]
+        },
+        "32bit": {
+            "url": "https://github.com/xtaci/kcptun/releases/download/v20210922/kcptun-windows-386-20210922.tar.gz",
+            "hash": "sha1:d15d3262cbbcabdce7e121452787b52a5c141cf3",
+            "bin": [
+                [
+                    "client_windows_386.exe",
+                    "kcptun-client"
+                ],
+                [
+                    "server_windows_386.exe",
+                    "kcptun-server"
+                ]
+            ]
+        }
+    },
+    "checkver": "github",
+    "autoupdate": {
+        "architecture": {
+            "64bit": {
+                "url": "https://github.com/xtaci/kcptun/releases/download/v$version/kcptun-windows-amd64-$version.tar.gz"
+            },
+            "32bit": {
+                "url": "https://github.com/xtaci/kcptun/releases/download/v$version/kcptun-windows-386-$version.tar.gz"
+            }
+        },
+        "hash": {
+            "url": "https://github.com/xtaci/kcptun/releases"
+        }
+    }
+}