diff --git a/src/Common/Constants.ts b/src/Common/Constants.ts
index 041ecf132..fe9c2672d 100644
--- a/src/Common/Constants.ts
+++ b/src/Common/Constants.ts
@@ -124,6 +124,34 @@ export enum MongoBackendEndpointType {
   remote,
 }
 
+export enum BackendApi {
+  GenerateToken,
+}
+
+export class PortalBackendEndpoints {
+  public static readonly Development: string = "https://localhost:7235";
+  public static readonly Mpac: string = "https://cdb-ms-mpac-pbe.cosmos.azure.com";
+  public static readonly Prod: string = "https://cdb-ms-prod-pbe.cosmos.azure.com";
+  public static readonly Fairfax: string = "https://cdb-ff-prod-pbe.cosmos.azure.us";
+  public static readonly Mooncake: string = "https://cdb-mc-prod-pbe.cosmos.azure.cn";
+}
+
+export class MongoProxyEndpoints {
+  public static readonly Development: string = "https://localhost:7238";
+  public static readonly Mpac: string = "https://cdb-ms-mpac-mp.cosmos.azure.com";
+  public static readonly Prod: string = "https://cdb-ms-prod-mp.cosmos.azure.com";
+  public static readonly Fairfax: string = "https://cdb-ff-prod-mp.cosmos.azure.us";
+  public static readonly Mooncake: string = "https://cdb-mc-prod-mp.cosmos.azure.cn";
+}
+
+export class CassandraProxyEndpoints {
+  public static readonly Development: string = "https://localhost:7240";
+  public static readonly Mpac: string = "https://cdb-ms-mpac-cp.cosmos.azure.com";
+  public static readonly Prod: string = "https://cdb-ms-prod-cp.cosmos.azure.com";
+  public static readonly Fairfax: string = "https://cdb-ff-prod-cp.cosmos.azure.us";
+  public static readonly Mooncake: string = "https://cdb-mc-prod-cp.cosmos.azure.cn";
+}
+
 //TODO: Remove this when new backend is migrated over
 export class CassandraBackend {
   public static readonly createOrDeleteApi: string = "api/cassandra/createordelete";
@@ -446,22 +474,6 @@ export class JunoEndpoints {
   public static readonly Stage = "https://tools-staging.cosmos.azure.com";
 }
 
-export class MongoProxyEndpoints {
-  public static readonly Development: string = "https://localhost:7238";
-  public static readonly Mpac: string = "https://cdb-ms-mpac-mp.cosmos.azure.com";
-  public static readonly Prod: string = "https://cdb-ms-prod-mp.cosmos.azure.com";
-  public static readonly Fairfax: string = "https://cdb-ff-prod-mp.cosmos.azure.us";
-  public static readonly Mooncake: string = "https://cdb-mc-prod-mp.cosmos.azure.cn";
-}
-
-export class CassandraProxyEndpoints {
-  public static readonly Development: string = "https://localhost:7240";
-  public static readonly Mpac: string = "https://cdb-ms-mpac-cp.cosmos.azure.com";
-  public static readonly Prod: string = "https://cdb-ms-prod-cp.cosmos.azure.com";
-  public static readonly Fairfax: string = "https://cdb-ff-prod-cp.cosmos.azure.us";
-  public static readonly Mooncake: string = "https://cdb-mc-prod-cp.cosmos.azure.cn";
-}
-
 export class PriorityLevel {
   public static readonly High = "high";
   public static readonly Low = "low";
diff --git a/src/Common/MongoProxyClient.ts b/src/Common/MongoProxyClient.ts
index 357ce1f50..e37b0eff5 100644
--- a/src/Common/MongoProxyClient.ts
+++ b/src/Common/MongoProxyClient.ts
@@ -690,6 +690,7 @@ export function getARMCreateCollectionEndpoint(params: DataModels.MongoParameter
 }
 
 function useMongoProxyEndpoint(api: string): boolean {
+  const activeMongoProxyEndpoints: string[] = [MongoProxyEndpoints.Development];
   let canAccessMongoProxy: boolean = userContext.databaseAccount.properties.publicNetworkAccess === "Enabled";
   if (userContext.databaseAccount.properties.ipRules?.length > 0) {
     canAccessMongoProxy = canAccessMongoProxy && configContext.MONGO_PROXY_OUTBOUND_IPS_ALLOWLISTED;
@@ -698,6 +699,6 @@ function useMongoProxyEndpoint(api: string): boolean {
   return (
     canAccessMongoProxy &&
     configContext.NEW_MONGO_APIS?.includes(api) &&
-    [MongoProxyEndpoints.Development, MongoProxyEndpoints.Mpac].includes(configContext.MONGO_PROXY_ENDPOINT)
+    activeMongoProxyEndpoints.includes(configContext.MONGO_PROXY_ENDPOINT)
   );
 }
diff --git a/src/ConfigContext.ts b/src/ConfigContext.ts
index f02fa260d..e3350c7f6 100644
--- a/src/ConfigContext.ts
+++ b/src/ConfigContext.ts
@@ -1,4 +1,10 @@
-import { CassandraProxyEndpoints, JunoEndpoints, MongoProxyEndpoints } from "Common/Constants";
+import {
+  BackendApi,
+  CassandraProxyEndpoints,
+  JunoEndpoints,
+  MongoProxyEndpoints,
+  PortalBackendEndpoints,
+} from "Common/Constants";
 import {
   allowedAadEndpoints,
   allowedArcadiaEndpoints,
@@ -39,6 +45,8 @@ export interface ConfigContext {
   ARCADIA_ENDPOINT: string;
   ARCADIA_LIVY_ENDPOINT_DNS_ZONE: string;
   BACKEND_ENDPOINT?: string;
+  PORTAL_BACKEND_ENDPOINT?: string;
+  NEW_BACKEND_APIS?: BackendApi[];
   MONGO_BACKEND_ENDPOINT?: string;
   MONGO_PROXY_ENDPOINT?: string;
   MONGO_PROXY_OUTBOUND_IPS_ALLOWLISTED?: boolean;
@@ -90,6 +98,8 @@ let configContext: Readonly<ConfigContext> = {
   GITHUB_TEST_ENV_CLIENT_ID: "b63fc8cbf87fd3c6e2eb", // Registered OAuth app: https://github.com/organizations/AzureCosmosDBNotebooks/settings/applications/1777772
   JUNO_ENDPOINT: JunoEndpoints.Prod,
   BACKEND_ENDPOINT: "https://main.documentdb.ext.azure.com",
+  PORTAL_BACKEND_ENDPOINT: PortalBackendEndpoints.Prod,
+  NEW_BACKEND_APIS: [BackendApi.GenerateToken],
   MONGO_PROXY_ENDPOINT: MongoProxyEndpoints.Prod,
   NEW_MONGO_APIS: [
     // "resourcelist",
diff --git a/src/Platform/Hosted/Components/ConnectExplorer.tsx b/src/Platform/Hosted/Components/ConnectExplorer.tsx
index dd291f279..6b33d021b 100644
--- a/src/Platform/Hosted/Components/ConnectExplorer.tsx
+++ b/src/Platform/Hosted/Components/ConnectExplorer.tsx
@@ -1,10 +1,11 @@
 import { useBoolean } from "@fluentui/react-hooks";
 import { userContext } from "UserContext";
+import { usePortalBackendEndpoint } from "Utils/EndpointUtils";
 import * as React from "react";
 import ConnectImage from "../../../../images/HdeConnectCosmosDB.svg";
 import ErrorImage from "../../../../images/error.svg";
 import { AuthType } from "../../../AuthType";
-import { HttpHeaders } from "../../../Common/Constants";
+import { BackendApi, HttpHeaders } from "../../../Common/Constants";
 import { configContext } from "../../../ConfigContext";
 import { GenerateTokenResponse } from "../../../Contracts/DataModels";
 import { isResourceTokenConnectionString } from "../Helpers/ResourceTokenUtils";
@@ -18,6 +19,23 @@ interface Props {
 }
 
 export const fetchEncryptedToken = async (connectionString: string): Promise<string> => {
+  if (!usePortalBackendEndpoint(BackendApi.GenerateToken)) {
+    return await fetchEncryptedToken_ToBeDeprecated(connectionString);
+  }
+
+  const headers = new Headers();
+  headers.append(HttpHeaders.connectionString, connectionString);
+  const url = configContext.PORTAL_BACKEND_ENDPOINT + "/api/connectionstring/token/generatetoken";
+  const response = await fetch(url, { headers, method: "POST" });
+  if (!response.ok) {
+    throw response;
+  }
+
+  const encryptedTokenResponse: string = await response.json();
+  return decodeURIComponent(encryptedTokenResponse);
+};
+
+export const fetchEncryptedToken_ToBeDeprecated = async (connectionString: string): Promise<string> => {
   const headers = new Headers();
   headers.append(HttpHeaders.connectionString, connectionString);
   const url = configContext.BACKEND_ENDPOINT + "/api/guest/tokens/generateToken";
diff --git a/src/Utils/EndpointUtils.ts b/src/Utils/EndpointUtils.ts
index ee01f7f9a..4962c285b 100644
--- a/src/Utils/EndpointUtils.ts
+++ b/src/Utils/EndpointUtils.ts
@@ -1,4 +1,11 @@
-import { CassandraProxyEndpoints, JunoEndpoints, MongoProxyEndpoints } from "Common/Constants";
+import {
+  BackendApi,
+  CassandraProxyEndpoints,
+  JunoEndpoints,
+  MongoProxyEndpoints,
+  PortalBackendEndpoints,
+} from "Common/Constants";
+import { configContext } from "ConfigContext";
 import * as Logger from "../Common/Logger";
 
 export function validateEndpoint(
@@ -137,3 +144,9 @@ export const allowedJunoOrigins: ReadonlyArray<string> = [
 ];
 
 export const allowedNotebookServerUrls: ReadonlyArray<string> = [];
+
+export function usePortalBackendEndpoint(backendApi: BackendApi): boolean {
+  const activePortalBackendEndpoints: string[] = [PortalBackendEndpoints.Development];
+  const activeBackendApi: boolean = configContext.NEW_BACKEND_APIS?.includes(backendApi) || false;
+  return activeBackendApi && activePortalBackendEndpoints.includes(configContext.PORTAL_BACKEND_ENDPOINT as string);
+}