diff --git a/src/api.ts b/src/api.ts
index 4652d22..1259c67 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -6,16 +6,19 @@ import ProgressBar from 'progress';
 import packageJson from '../package.json';
 import tcpp from 'tcp-ping';
 import filesizeParser from 'filesize-parser';
-import { pricingPageUrl } from './utils';
+import { pricingPageUrl } from './utils/constants';
 import type { Session } from 'types';
 import FormData from 'form-data';
+import { credentialFile } from 'utils/constants';
 
 const tcpPing = util.promisify(tcpp.ping);
 
 let session: Session | undefined;
 let savedSession: Session | undefined;
 
-const defaultEndpoint = 'https://update.reactnative.cn/api';
+const defaultEndpoint = global.IS_CRESC
+  ? 'https://api.cresc.dev'
+  : 'https://update.reactnative.cn/api';
 let host = process.env.PUSHY_REGISTRY || defaultEndpoint;
 
 const userAgent = `react-native-update-cli/${packageJson.version}`;
@@ -26,14 +29,16 @@ export const replaceSession = (newSession: { token: string }) => {
   session = newSession;
 };
 
+
+
 export const loadSession = async () => {
-  if (fs.existsSync('.update')) {
+  if (fs.existsSync(credentialFile)) {
     try {
-      replaceSession(JSON.parse(fs.readFileSync('.update', 'utf8')));
+      replaceSession(JSON.parse(fs.readFileSync(credentialFile, 'utf8')));
       savedSession = session;
     } catch (e) {
       console.error(
-        'Failed to parse file `.update`. Try to remove it manually.',
+        `Failed to parse file ${credentialFile}. Try to remove it manually.`,
       );
       throw e;
     }
@@ -45,14 +50,14 @@ export const saveSession = () => {
   if (session !== savedSession) {
     const current = session;
     const data = JSON.stringify(current, null, 4);
-    fs.writeFileSync('.update', data, 'utf8');
+    fs.writeFileSync(credentialFile, data, 'utf8');
     savedSession = current;
   }
 };
 
 export const closeSession = () => {
-  if (fs.existsSync('.update')) {
-    fs.unlinkSync('.update');
+  if (fs.existsSync(credentialFile)) {
+    fs.unlinkSync(credentialFile);
     savedSession = undefined;
   }
   session = undefined;
@@ -137,7 +142,7 @@ export async function uploadFile(fn: string, key?: string) {
     );
   }
 
-  const bar = new ProgressBar('  上传中 [:bar] :percent :etas', {
+  const bar = new ProgressBar('  Uploading [:bar] :percent :etas', {
     complete: '=',
     incomplete: ' ',
     total: fileSize,
@@ -145,9 +150,9 @@ export async function uploadFile(fn: string, key?: string) {
 
   const form = new FormData();
 
-  Object.entries(formData).forEach(([k, v]) => {
+  for (const [k, v] of Object.entries(formData)) {
     form.append(k, v);
-  });
+  }
   const fileStream = fs.createReadStream(fn);
   fileStream.on('data', (data) => {
     bar.tick(data.length);
diff --git a/src/utils/constants.ts b/src/utils/constants.ts
new file mode 100644
index 0000000..c64749d
--- /dev/null
+++ b/src/utils/constants.ts
@@ -0,0 +1,6 @@
+export const credentialFile = global.IS_CRESC ? '.cresc.token' : '.update';
+export const updateJson = global.IS_CRESC ? 'cresc.config.json' : 'update.json';
+export const tempDir = global.IS_CRESC ? '.cresc.temp' : '.pushy';
+export const pricingPageUrl = global.IS_CRESC
+  ? 'https://cresc.dev/pricing'
+  : 'https://pushy.reactnative.cn/pricing.html';
diff --git a/src/utils/index.ts b/src/utils/index.ts
index 2548a89..0648c7e 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -9,8 +9,9 @@ import latestVersion from '@badisi/latest-version';
 import { checkPlugins } from './check-plugin';
 
 import { read } from 'read';
+import { tempDir } from './constants';
 
-export async function question(query, password) {
+export async function question(query: string, password: boolean) {
   if (NO_INTERACTIVE) {
     return '';
   }
@@ -21,7 +22,7 @@ export async function question(query, password) {
   });
 }
 
-export function translateOptions(options) {
+export function translateOptions(options: Record<string, string>) {
   const ret = {};
   for (const key in options) {
     const v = options[key];
@@ -163,16 +164,16 @@ export async function getIpaInfo(fn: string) {
   return { versionName, buildTime, ...appCredential };
 }
 
-const localDir = path.resolve(os.homedir(), '.pushy');
+const localDir = path.resolve(os.homedir(), tempDir);
 fs.ensureDirSync(localDir);
-export function saveToLocal(originPath, destName) {
+export function saveToLocal(originPath: string, destName: string) {
   // TODO
   // const destPath = path.join(localDir, destName);
   // fs.ensureDirSync(path.dirname(destPath));
   // fs.copyFileSync(originPath, destPath);
 }
 
-async function getLatestVersion(pkgName) {
+async function getLatestVersion(pkgName: string) {
   return Promise.race([
     latestVersion(pkgName)
       .then((p) => p.latest)
@@ -225,6 +226,6 @@ export async function printVersionCommand() {
   }
 }
 
-export const pricingPageUrl = 'https://pushy.reactnative.cn/pricing.html';
+
 
 export { checkPlugins };