diff --git a/encrypt-secret-key.js b/encrypt-secret-key.js
new file mode 100644
index 0000000..74a1018
--- /dev/null
+++ b/encrypt-secret-key.js
@@ -0,0 +1,22 @@
+import CryptoJS from 'crypto-js'
+import readlineSync from 'readline-sync'
+
+function encrypt() {
+    var ethPrivKey = readlineSync.question('please input eth private key: ',{hideEchoBack: true});
+    var cryptowatchKey = readlineSync.question('please input cryptowatch key: ',{hideEchoBack: true});
+    var passwd = readlineSync.question('please input your password: ',{hideEchoBack: true});
+    var verifypasswd = readlineSync.question('please reinput your password: ',{hideEchoBack: true});
+
+    if (passwd != verifypasswd) {
+        console.log("your password mistach!")
+        return
+    }
+    var encryptEthPrivKey = CryptoJS.AES.encrypt(ethPrivKey, passwd).toString();
+    var encryptCryptowatchKey = CryptoJS.AES.encrypt(cryptowatchKey, passwd).toString();
+
+    console.log("your encrypted eth private key: ", encryptEthPrivKey)
+    console.log("your encrypted cryptowatch key: ", encryptCryptowatchKey)
+}
+
+eval(encrypt())
+
diff --git a/marketmaker.js b/marketmaker.js
index 8398897..ebdad63 100644
--- a/marketmaker.js
+++ b/marketmaker.js
@@ -4,6 +4,9 @@ import ethers from 'ethers';
 import dotenv from 'dotenv';
 import fetch from 'node-fetch';
 import fs from 'fs';
+import readlineSync from 'readline-sync'
+import CryptoJS from 'crypto-js'
+import minimist from 'minimist'
 
 dotenv.config();
 
@@ -22,6 +25,13 @@ let FEE_TOKEN = null;
 let uniswap_error_counter = 0;
 let chainlink_error_counter = 0;
 
+// Encrypt the eth private key and cryptowatch api key if you want
+let args = minimist(process.argv.slice(2), {boolean: 'encrypt-key'});
+let passwd = null;
+if (args['encrypt-key']) {
+    passwd = readlineSync.question('please input your password: ',{hideEchoBack: true});
+}
+
 // Load MM config
 let MM_CONFIG;
 if (process.env.MM_CONFIG) {
@@ -78,6 +88,9 @@ try {
         });
     }
     for(let i=0; i<keys.length; i++) {
+        if (args['encrypt-key']) {
+           keys[i] =  CryptoJS.AES.decrypt(keys[i], passwd).toString(CryptoJS.enc.Utf8);
+        }
         let ethWallet = new ethers.Wallet(keys[i]);
         let syncWallet = await zksync.Wallet.fromEthSigner(ethWallet, syncProvider);
         if (!(await syncWallet.isSigningKeySet())) {
@@ -551,7 +564,10 @@ async function setupPriceFeeds() {
 
 async function cryptowatchWsSetup(cryptowatchMarketIds) {
     // Set initial prices
-    const cryptowatchApiKey = process.env.CRYPTOWATCH_API_KEY || MM_CONFIG.cryptowatchApiKey;
+    let cryptowatchApiKey = process.env.CRYPTOWATCH_API_KEY || MM_CONFIG.cryptowatchApiKey;
+    if (args['encrypt-key']) {
+        cryptowatchApiKey = CryptoJS.AES.decrypt(cryptowatchApiKey, passwd).toString(CryptoJS.enc.Utf8)
+    }
     const cryptowatchMarkets = await fetch("https://api.cryptowat.ch/markets?apikey=" + cryptowatchApiKey).then(r => r.json());
     const cryptowatchMarketPrices = await fetch("https://api.cryptowat.ch/markets/prices?apikey=" + cryptowatchApiKey).then(r => r.json());
     for (let i in cryptowatchMarketIds) {
diff --git a/package-lock.json b/package-lock.json
index bc8d7f1..5b4a2f3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,9 +9,12 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
+        "crypto-js": "^4.1.1",
         "dotenv": "^10.0.0",
         "ethers": "^5.5.1",
+        "minimist": "^1.2.6",
         "node-fetch": "^3.1.0",
+        "readline-sync": "^1.4.10",
         "ws": "^8.2.3",
         "zksync": "^0.11.6"
       },
@@ -766,6 +769,11 @@
       "resolved": "https://registry.npmjs.org/chnl/-/chnl-1.2.0.tgz",
       "integrity": "sha512-g5gJb59edwCliFbX2j7G6sBfY4sX9YLy211yctONI2GRaiX0f2zIbKWmBm+sPqFNEpM7Ljzm7IJX/xrjiEbPrw=="
     },
+    "node_modules/crypto-js": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmmirror.com/crypto-js/-/crypto-js-4.1.1.tgz",
+      "integrity": "sha512-o2JlM7ydqd3Qk9CA0L4NL6mTzU2sdx96a+oOfPu8Mkl/PK51vSyoi8/rQ8NknZtk44vq15lmhAj9CIAGwgeWKw=="
+    },
     "node_modules/d": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/d/-/d-1.0.1.tgz",
@@ -1286,6 +1294,11 @@
       "resolved": "https://registry.npmjs.org/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz",
       "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo="
     },
+    "node_modules/minimist": {
+      "version": "1.2.6",
+      "resolved": "https://registry.npmmirror.com/minimist/-/minimist-1.2.6.tgz",
+      "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q=="
+    },
     "node_modules/ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -1398,6 +1411,14 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/readline-sync": {
+      "version": "1.4.10",
+      "resolved": "https://registry.npmmirror.com/readline-sync/-/readline-sync-1.4.10.tgz",
+      "integrity": "sha512-gNva8/6UAe8QYepIQH/jQ2qn91Qj0B9sYjMBBs3QOB8F2CXcKgLxQaJRP76sWVRQt+QU+8fAkCbCvjjMFu7Ycw==",
+      "engines": {
+        "node": ">= 0.8.0"
+      }
+    },
     "node_modules/scrypt-js": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
@@ -2008,6 +2029,11 @@
       "resolved": "https://registry.npmjs.org/chnl/-/chnl-1.2.0.tgz",
       "integrity": "sha512-g5gJb59edwCliFbX2j7G6sBfY4sX9YLy211yctONI2GRaiX0f2zIbKWmBm+sPqFNEpM7Ljzm7IJX/xrjiEbPrw=="
     },
+    "crypto-js": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmmirror.com/crypto-js/-/crypto-js-4.1.1.tgz",
+      "integrity": "sha512-o2JlM7ydqd3Qk9CA0L4NL6mTzU2sdx96a+oOfPu8Mkl/PK51vSyoi8/rQ8NknZtk44vq15lmhAj9CIAGwgeWKw=="
+    },
     "d": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/d/-/d-1.0.1.tgz",
@@ -2382,6 +2408,11 @@
       "resolved": "https://registry.npmjs.org/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz",
       "integrity": "sha1-9sAMHAsIIkblxNmd+4x8CDsrWCo="
     },
+    "minimist": {
+      "version": "1.2.6",
+      "resolved": "https://registry.npmmirror.com/minimist/-/minimist-1.2.6.tgz",
+      "integrity": "sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q=="
+    },
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -2448,6 +2479,11 @@
         "es-abstract": "^1.19.1"
       }
     },
+    "readline-sync": {
+      "version": "1.4.10",
+      "resolved": "https://registry.npmmirror.com/readline-sync/-/readline-sync-1.4.10.tgz",
+      "integrity": "sha512-gNva8/6UAe8QYepIQH/jQ2qn91Qj0B9sYjMBBs3QOB8F2CXcKgLxQaJRP76sWVRQt+QU+8fAkCbCvjjMFu7Ycw=="
+    },
     "scrypt-js": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
diff --git a/package.json b/package.json
index 19da3cb..149d395 100644
--- a/package.json
+++ b/package.json
@@ -10,9 +10,12 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "crypto-js": "^4.1.1",
     "dotenv": "^10.0.0",
     "ethers": "^5.5.1",
+    "minimist": "^1.2.6",
     "node-fetch": "^3.1.0",
+    "readline-sync": "^1.4.10",
     "ws": "^8.2.3",
     "zksync": "0.11.6"
   },