diff --git a/package.json b/package.json
index 4f3afd7..f1fdd7c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "okx-api",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Complete & robust Node.js SDK for OKX's REST APIs and WebSockets, with TypeScript & end-to-end tests",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/src/rest-client.ts b/src/rest-client.ts
index da34da8..9a6d5a7 100644
--- a/src/rest-client.ts
+++ b/src/rest-client.ts
@@ -103,6 +103,10 @@ import {
   AmendAlgoOrderRequest,
   AmendAlgoOrderResult,
   AlgoOrderRequest,
+  EconomicCalendarData,
+  UnitConvertData,
+  EconomicCalendarRequest,
+  UnitConvertRequest,
 } from './types';
 import { ASSET_BILL_TYPE } from './constants';
 
@@ -1238,10 +1242,16 @@ export class RestClient extends BaseRestClient {
     return this.get('/api/v5/public/insurance-fund', params);
   }
 
-  getUnitConvert(params: any): Promise<any[]> {
+  getUnitConvert(params: UnitConvertRequest): Promise<UnitConvertData[]> {
     return this.get('/api/v5/public/convert-contract-coin', params);
   }
 
+  getEconomicCalendar(
+    params: EconomicCalendarRequest
+  ): Promise<EconomicCalendarData[]> {
+    return this.getPrivate('/api/v5/public/economic-calendar', params);
+  }
+
   /**
    *
    * Trading data endpoints (public)
@@ -1356,28 +1366,25 @@ export class RestClient extends BaseRestClient {
   }
 
   createSubAccount(params: {
-    subAcct:string,
-    label?:string,
-    clientIP?:string,
-    mainAcct: string,
+    subAcct: string;
+    label?: string;
+    clientIP?: string;
+    mainAcct: string;
   }): Promise<any[]> {
     return this.postPrivate('/api/v5/broker/nd/create-subaccount', params);
   }
 
-  deleteSubAccount(params: {
-    subAcct:string,
-  }): Promise<any[]> {
+  deleteSubAccount(params: { subAcct: string }): Promise<any[]> {
     return this.postPrivate('/api/v5/broker/nd/delete-subaccount', params);
-  } 
+  }
 
   createSubAccountAPIKey(params: {
-    subAcct:string,
-    label: string,
-    passphrase: string,
-    ip?:string,
-    perm?:string,
+    subAcct: string;
+    label: string;
+    passphrase: string;
+    ip?: string;
+    perm?: string;
   }): Promise<any[]> {
     return this.postPrivate('/api/v5/broker/nd/subaccount/apikey', params);
-  } 
-
+  }
 }
diff --git a/src/types/rest/request/index.ts b/src/types/rest/request/index.ts
index a1e1e22..304843a 100644
--- a/src/types/rest/request/index.ts
+++ b/src/types/rest/request/index.ts
@@ -6,3 +6,4 @@ export * from './subaccount';
 export * from './trade';
 export * from './block-trading';
 export * from './grid-trading';
+export * from './public';
diff --git a/src/types/rest/request/public.ts b/src/types/rest/request/public.ts
new file mode 100644
index 0000000..961524c
--- /dev/null
+++ b/src/types/rest/request/public.ts
@@ -0,0 +1,16 @@
+export interface EconomicCalendarRequest {
+  region?: string;
+  importance?: '1' | '2' | '3';
+  before?: string;
+  after?: string;
+  limit?: string;
+}
+
+export interface UnitConvertRequest {
+  type?: '1' | '2';
+  instId: string;
+  sz: string;
+  px?: string;
+  unit?: 'coin' | 'usds';
+  opType: 'open' | 'close';
+}
diff --git a/src/types/rest/response/public-data.ts b/src/types/rest/response/public-data.ts
index 8cc9aa7..e1ff702 100644
--- a/src/types/rest/response/public-data.ts
+++ b/src/types/rest/response/public-data.ts
@@ -110,3 +110,29 @@ export interface Instrument {
   maxTriggerSz: string;
   maxStopSz: string;
 }
+
+export interface EconomicCalendarData {
+  calendarId: string;
+  date: string;
+  region: string;
+  category: string;
+  event: string;
+  refDate: string;
+  actual: string;
+  previous: string;
+  forecast: string;
+  dateSpan: string;
+  importance: string;
+  uTime: string;
+  prevInitial: string;
+  ccy: string;
+  unit: string;
+}
+
+export interface UnitConvertData {
+  type: '1' | '2';
+  instId: string;
+  px: string;
+  sz: string;
+  unit: 'coin' | 'usds';
+}