diff --git a/deploy/keychain.sh b/deploy/keychain.sh
new file mode 100644
index 00000000..a99ed465
--- /dev/null
+++ b/deploy/keychain.sh
@@ -0,0 +1,31 @@
+#!/usr/bin/env sh
+
+#Here is a sample custom api script.
+#This file name is "myapi.sh"
+#So, here must be a method   myapi_deploy()
+#Which will be called by acme.sh to deploy the cert
+#returns 0 means success, otherwise error.
+
+########  Public functions #####################
+
+#domain keyfile certfile cafile fullchain
+keychain_deploy() {
+  _cdomain="$1"
+  _ckey="$2"
+  _ccert="$3"
+  _cca="$4"
+  _cfullchain="$5"
+
+  _debug _cdomain "$_cdomain"
+  _debug _ckey "$_ckey"
+  _debug _ccert "$_ccert"
+  _debug _cca "$_cca"
+  _debug _cfullchain "$_cfullchain"
+
+  /usr/bin/security import "$_ckey" -k "/Library/Keychains/System.keychain"
+  /usr/bin/security import "$_ccert" -k "/Library/Keychains/System.keychain"
+  /usr/bin/security import "$_cca" -k "/Library/Keychains/System.keychain"
+  /usr/bin/security import "$_cfullchain" -k "/Library/Keychains/System.keychain"
+
+  return 0
+}