diff --git a/src/components/Options.tsx b/src/components/Options.tsx
index ddf6dad..c785c5c 100644
--- a/src/components/Options.tsx
+++ b/src/components/Options.tsx
@@ -9,6 +9,7 @@ interface State {
   alertText: string;
   alertType: SuccessOrFailType;
   apiKey: string;
+  apiUrl: string;
   blacklist: string;
   displayAlert: boolean;
   hostname: string;
@@ -25,6 +26,7 @@ export default function Options(): JSX.Element {
     alertText: config.alert.success.text,
     alertType: config.alert.success.type,
     apiKey: '',
+    apiUrl: config.apiUrl,
     blacklist: '',
     displayAlert: false,
     hostname: '',
@@ -42,6 +44,7 @@ export default function Options(): JSX.Element {
   const restoreSettings = async (): Promise<void> => {
     const items = await browser.storage.sync.get({
       apiKey: config.apiKey,
+      apiUrl: config.apiUrl,
       blacklist: '',
       hostname: config.hostname,
       loggingStyle: config.loggingStyle,
@@ -54,6 +57,7 @@ export default function Options(): JSX.Element {
     setState({
       ...state,
       apiKey: items.apiKey as string,
+      apiUrl: items.apiUrl as string,
       blacklist: items.blacklist as string,
       hostname: items.hostname as string,
       loggingStyle: items.loggingStyle as string,
@@ -82,6 +86,7 @@ export default function Options(): JSX.Element {
     setState({ ...state, loading: true });
 
     const apiKey = state.apiKey;
+    const apiUrl = state.apiUrl;
     const theme = state.theme;
     const hostname = state.hostname;
     const loggingType = state.loggingType;
@@ -95,6 +100,7 @@ export default function Options(): JSX.Element {
     // Sync options with google storage.
     await browser.storage.sync.set({
       apiKey,
+      apiUrl,
       blacklist,
       hostname,
       loggingStyle,
@@ -109,6 +115,7 @@ export default function Options(): JSX.Element {
     setState({
       ...state,
       apiKey,
+      apiUrl,
       blacklist,
       displayAlert: true,
       hostname,
@@ -273,6 +280,23 @@ export default function Options(): JSX.Element {
               </div>
             </div>
 
+            <div className="form-group">
+              <label htmlFor="theme" className="col-lg-2 control-label">
+                API Url
+              </label>
+
+              <div className="col-lg-10">
+                <input
+                  type="text"
+                  className="form-control"
+                  value={state.apiUrl}
+                  onChange={(e) => setState({ ...state, apiUrl: e.target.value })}
+                  placeholder="https://wakatime.com/api/v1"
+                />
+                <span className="help-block">https://wakatime.com/api/v1</span>
+              </div>
+            </div>
+
             <div className="form-group row">
               <div className="col-lg-10 col-lg-offset-2 space-between align-items-center">
                 <div
diff --git a/src/components/WakaTime.tsx b/src/components/WakaTime.tsx
index faf0641..e6b37d2 100644
--- a/src/components/WakaTime.tsx
+++ b/src/components/WakaTime.tsx
@@ -1,12 +1,12 @@
 import React, { useEffect, useState } from 'react';
-import { useSelector, useDispatch } from 'react-redux';
-import { ApiKeyReducer, ReduxSelector } from '../types/store';
-import { fetchUserData } from '../utils/user';
-import apiKeyInvalid from '../utils/apiKey';
+import { useDispatch, useSelector } from 'react-redux';
 import config from '../config/config';
+import { ApiKeyReducer, ReduxSelector } from '../types/store';
+import apiKeyInvalid from '../utils/apiKey';
+import { fetchUserData } from '../utils/user';
 import Alert from './Alert';
-import NavBar from './NavBar';
 import MainList from './MainList';
+import NavBar from './NavBar';
 
 export default function WakaTime(): JSX.Element {
   const dispatch = useDispatch();
@@ -35,7 +35,7 @@ export default function WakaTime(): JSX.Element {
       {isApiKeyValid && extensionState === 'notSignedIn' && (
         <Alert
           type={config.alert.failure.type}
-          text={'Invalid api key'}
+          text={'Invalid API key or API url'}
           onClick={() => browser.runtime.openOptionsPage()}
           style={{ cursor: 'pointer' }}
         />
diff --git a/src/config/config.test.ts b/src/config/config.test.ts
index 09fc792..623fac0 100644
--- a/src/config/config.test.ts
+++ b/src/config/config.test.ts
@@ -25,13 +25,14 @@ describe('wakatime config', () => {
           },
         },
         "apiKey": "",
+        "apiUrl": "https://wakatime.com/api/v1",
         "colors": {
           "allGood": "",
           "lightTheme": "white",
           "notLogging": "gray",
           "notSignedIn": "red",
         },
-        "currentUserApiUrl": "https://wakatime.com/api/v1/users/current",
+        "currentUserApiEndPoint": "/users/current",
         "detectionIntervalInSeconds": 60,
         "devSites": "https://codepen.io/
       https://www.codewars.com/
@@ -43,7 +44,7 @@ describe('wakatime config', () => {
       https://stackoverflow.com/
       https://www.udemy.com/
       https://www.w3schools.com/",
-        "heartbeatApiUrl": "https://wakatime.com/api/v1/users/current/heartbeats",
+        "heartbeatApiEndPoint": "/users/current/heartbeats",
         "hostname": "",
         "loggingEnabled": true,
         "loggingStyle": "blacklist",
@@ -67,7 +68,7 @@ describe('wakatime config', () => {
           "blacklisted",
           "whitelisted",
         ],
-        "summariesApiUrl": "https://wakatime.com/api/v1/users/current/summaries",
+        "summariesApiEndPoint": "/users/current/summaries",
         "theme": "light",
         "tooltips": {
           "allGood": "",
diff --git a/src/config/config.ts b/src/config/config.ts
index c74d6a9..08406ed 100644
--- a/src/config/config.ts
+++ b/src/config/config.ts
@@ -53,11 +53,12 @@ export interface Config {
    * API key use to query wakatime  api
    */
   apiKey: '';
+  apiUrl: string;
   colors: Colors;
   /**
    * Url from which to detect if the user is logged in
    */
-  currentUserApiUrl: string;
+  currentUserApiEndPoint: string;
   /**
    * Time for idle state of the browser
    * The user is considered idle if there was
@@ -69,7 +70,7 @@ export interface Config {
   /**
    * Url to which to send the heartbeat
    */
-  heartbeatApiUrl: string;
+  heartbeatApiEndPoint: string;
 
   hostname: string;
   /**
@@ -91,7 +92,7 @@ export interface Config {
   /**
    * Get stats from the wakatime api
    */
-  summariesApiUrl: string;
+  summariesApiEndPoint: string;
   /**
    * Options for theme
    */
@@ -118,6 +119,8 @@ const config: Config = {
 
   apiKey: '',
 
+  apiUrl: process.env.API_URL ?? 'https://wakatime.com/api/v1',
+
   colors: {
     allGood: '',
     lightTheme: 'white',
@@ -125,16 +128,14 @@ const config: Config = {
     notSignedIn: 'red',
   },
 
-  currentUserApiUrl:
-    process.env.CURRENT_USER_API_URL ?? 'https://wakatime.com/api/v1/users/current',
+  currentUserApiEndPoint: process.env.CURRENT_USER_API_URL ?? '/users/current',
 
   detectionIntervalInSeconds: 60,
 
   devSites:
     'https://codepen.io/\nhttps://www.codewars.com/\nhttps://dev.to/\nhttps://github.com/\nhttps://www.hackerrank.com/\nhttps://leetcode.com/\nhttps://developer.mozilla.org/en-US/\nhttps://stackoverflow.com/\nhttps://www.udemy.com/\nhttps://www.w3schools.com/',
 
-  heartbeatApiUrl:
-    process.env.HEART_BEAT_API_URL ?? 'https://wakatime.com/api/v1/users/current/heartbeats',
+  heartbeatApiEndPoint: process.env.HEARTBEAT_API_URL ?? '/users/current/heartbeats',
 
   hostname: '',
 
@@ -152,8 +153,7 @@ const config: Config = {
 
   states: ['allGood', 'notLogging', 'notSignedIn', 'blacklisted', 'whitelisted'],
 
-  summariesApiUrl:
-    process.env.SUMMARIES_API_URL ?? 'https://wakatime.com/api/v1/users/current/summaries',
+  summariesApiEndPoint: process.env.SUMMARIES_API_URL ?? '/users/current/summaries',
 
   theme: 'light',
 
diff --git a/src/core/WakaTimeCore.ts b/src/core/WakaTimeCore.ts
index 029c908..7f6fa99 100644
--- a/src/core/WakaTimeCore.ts
+++ b/src/core/WakaTimeCore.ts
@@ -49,9 +49,14 @@ class WakaTimeCore {
   }
 
   async getTotalTimeLoggedToday(api_key = ''): Promise<GrandTotal> {
+    const items = await browser.storage.sync.get({
+      apiUrl: config.apiUrl,
+      summariesApiEndPoint: config.summariesApiEndPoint,
+    });
+
     const today = moment().format('YYYY-MM-DD');
     const summariesAxiosPayload: AxiosResponse<SummariesPayload> = await axios.get(
-      config.summariesApiUrl,
+      `${items.apiUrl}${items.summariesApiEndPoint}`,
       {
         params: {
           api_key,
@@ -70,8 +75,13 @@ class WakaTimeCore {
    */
   async fetchApiKey(): Promise<string> {
     try {
+      const items = await browser.storage.sync.get({
+        apiUrl: config.apiUrl,
+        currentUserApiEndPoint: config.currentUserApiEndPoint,
+      });
+
       const apiKeyResponse: AxiosResponse<ApiKeyPayload> = await axios.post(
-        `${config.currentUserApiUrl}/get_api_key`,
+        `${items.apiUrl}${items.currentUserApiEndPoint}/get_api_key`,
       );
       return apiKeyResponse.data.data.api_key;
     } catch (err: unknown) {
@@ -85,8 +95,12 @@ class WakaTimeCore {
    * @returns {*}
    */
   async checkAuth(api_key = ''): Promise<User> {
+    const items = await browser.storage.sync.get({
+      apiUrl: config.apiUrl,
+      currentUserApiEndPoint: config.currentUserApiEndPoint,
+    });
     const userPayload: AxiosResponse<AxiosUserResponse> = await axios.get(
-      config.currentUserApiUrl,
+      `${items.apiUrl}${items.currentUserApiEndPoint}`,
       { params: { api_key } },
     );
     return userPayload.data.data;
@@ -345,6 +359,11 @@ class WakaTimeCore {
     hostname = '',
   ): Promise<void> {
     try {
+      const items = await browser.storage.sync.get({
+        apiUrl: config.apiUrl,
+        heartbeatApiEndPoint: config.heartbeatApiEndPoint,
+      });
+
       const request: RequestInit = {
         body: JSON.stringify(payload),
         credentials: 'omit',
@@ -355,7 +374,10 @@ class WakaTimeCore {
           'X-Machine-Name': hostname,
         };
       }
-      const response = await fetch(`${config.heartbeatApiUrl}?api_key=${apiKey}`, request);
+      const response = await fetch(
+        `${items.apiUrl}${items.heartbeatApiEndPoint}?api_key=${apiKey}`,
+        request,
+      );
       await response.json();
     } catch (err: unknown) {
       if (this.db) {
diff --git a/src/manifests/chrome.json b/src/manifests/chrome.json
index 38ef686..e6b60c8 100644
--- a/src/manifests/chrome.json
+++ b/src/manifests/chrome.json
@@ -26,5 +26,5 @@
     "page": "options.html"
   },
   "permissions": ["alarms", "tabs", "storage", "idle"],
-  "version": "3.0.7"
+  "version": "3.0.8"
 }
diff --git a/src/manifests/firefox.json b/src/manifests/firefox.json
index 796f710..46121eb 100644
--- a/src/manifests/firefox.json
+++ b/src/manifests/firefox.json
@@ -39,5 +39,5 @@
     "storage",
     "idle"
   ],
-  "version": "3.0.7"
+  "version": "3.0.8"
 }
diff --git a/src/reducers/currentUser.ts b/src/reducers/currentUser.ts
index 86fc627..9ae4e18 100644
--- a/src/reducers/currentUser.ts
+++ b/src/reducers/currentUser.ts
@@ -1,7 +1,8 @@
-import { createSlice, createAsyncThunk } from '@reduxjs/toolkit';
+import { createAsyncThunk, createSlice } from '@reduxjs/toolkit';
 import axios, { AxiosResponse } from 'axios';
-import { CurrentUser, User, UserPayload } from '../types/user';
+import browser from 'webextension-polyfill';
 import config from '../config/config';
+import { CurrentUser, User, UserPayload } from '../types/user';
 
 interface setUserAction {
   payload: User | undefined;
@@ -14,9 +15,16 @@ export const name: NameType = 'currentUser';
 export const fetchCurrentUser = createAsyncThunk<User, string>(
   `[${name}]`,
   async (api_key = '') => {
-    const userPayload: AxiosResponse<UserPayload> = await axios.get(config.currentUserApiUrl, {
-      params: { api_key },
+    const items = await browser.storage.sync.get({
+      apiUrl: config.apiUrl,
+      currentUserApiEndPoint: config.currentUserApiEndPoint,
     });
+    const userPayload: AxiosResponse<UserPayload> = await axios.get(
+      `${items.apiUrl}${items.currentUserApiEndPoint}`,
+      {
+        params: { api_key },
+      },
+    );
     return userPayload.data.data;
   },
 );
diff --git a/webpack.config.ts b/webpack.config.ts
index a6f5b97..6d6d3d0 100644
--- a/webpack.config.ts
+++ b/webpack.config.ts
@@ -55,17 +55,12 @@ const getConfigByBrowser = (isProd: boolean, browser: BrowserTypes): webpack.Con
         ],
       }),
       new webpack.DefinePlugin({
-        ['process.env.CURRENT_USER_API_URL']: JSON.stringify(
-          'https://wakatime.com/api/v1/users/current',
-        ),
-        ['process.env.HEART_BEAT_API_URL']: JSON.stringify(
-          'https://wakatime.com/api/v1/users/current/heartbeats',
-        ),
+        ['process.env.API_URL']: JSON.stringify('https://wakatime.com/api/v1'),
+        ['process.env.CURRENT_USER_API_URL']: JSON.stringify('/users/current'),
+        ['process.env.HEARTBEAT_API_URL']: JSON.stringify('/users/current/heartbeats'),
         ['process.env.LOGOUT_USER_URL']: JSON.stringify('https://wakatime.com/logout'),
         ['process.env.NODE_ENV']: JSON.stringify(isProd ? 'production' : 'development'),
-        ['process.env.SUMMARIES_API_URL']: JSON.stringify(
-          'https://wakatime.com/api/v1/users/current/summaries',
-        ),
+        ['process.env.SUMMARIES_API_URL']: JSON.stringify('/users/current/summaries'),
       }),
     ],
     resolve: {