diff --git a/clients/http/auth.go b/clients/http/auth.go
index 0ce859e7..97507a72 100644
--- a/clients/http/auth.go
+++ b/clients/http/auth.go
@@ -1,5 +1,5 @@
 //
-// Copyright (C) 2024 IOTech Ltd
+// Copyright (C) 2024-2025 IOTech Ltd
 //
 // SPDX-License-Identifier: Apache-2.0
 
@@ -8,6 +8,7 @@ package http
 import (
 	"context"
 
+	"github.com/edgexfoundry/go-mod-core-contracts/v4/clients"
 	"github.com/edgexfoundry/go-mod-core-contracts/v4/clients/http/utils"
 	"github.com/edgexfoundry/go-mod-core-contracts/v4/clients/interfaces"
 	"github.com/edgexfoundry/go-mod-core-contracts/v4/common"
@@ -18,14 +19,22 @@ import (
 )
 
 type AuthClient struct {
-	baseUrl      string
+	baseUrlFunc  clients.ClientBaseUrlFunc
 	authInjector interfaces.AuthenticationInjector
 }
 
 // NewAuthClient creates an instance of AuthClient
 func NewAuthClient(baseUrl string, authInjector interfaces.AuthenticationInjector) interfaces.AuthClient {
 	return &AuthClient{
-		baseUrl:      baseUrl,
+		baseUrlFunc:  clients.GetDefaultClientBaseUrlFunc(baseUrl),
+		authInjector: authInjector,
+	}
+}
+
+// NewAuthClientWithUrlCallback creates an instance of AuthClient with ClientBaseUrlFunc.
+func NewAuthClientWithUrlCallback(baseUrlFunc clients.ClientBaseUrlFunc, authInjector interfaces.AuthenticationInjector) interfaces.AuthClient {
+	return &AuthClient{
+		baseUrlFunc:  baseUrlFunc,
 		authInjector: authInjector,
 	}
 }
@@ -33,7 +42,11 @@ func NewAuthClient(baseUrl string, authInjector interfaces.AuthenticationInjecto
 // AddKey adds new key
 func (ac *AuthClient) AddKey(ctx context.Context, req requests.AddKeyDataRequest) (dtoCommon.BaseResponse, errors.EdgeX) {
 	var response dtoCommon.BaseResponse
-	err := utils.PostRequestWithRawData(ctx, &response, ac.baseUrl, common.ApiKeyRoute, nil, req, ac.authInjector)
+	baseUrl, err := clients.GetBaseUrl(ac.baseUrlFunc)
+	if err != nil {
+		return response, errors.NewCommonEdgeXWrapper(err)
+	}
+	err = utils.PostRequestWithRawData(ctx, &response, baseUrl, common.ApiKeyRoute, nil, req, ac.authInjector)
 	if err != nil {
 		return response, errors.NewCommonEdgeXWrapper(err)
 	}
@@ -42,7 +55,11 @@ func (ac *AuthClient) AddKey(ctx context.Context, req requests.AddKeyDataRequest
 
 func (ac *AuthClient) VerificationKeyByIssuer(ctx context.Context, issuer string) (res responses.KeyDataResponse, err errors.EdgeX) {
 	path := common.NewPathBuilder().SetPath(common.ApiKeyRoute).SetPath(common.VerificationKeyType).SetPath(common.Issuer).SetNameFieldPath(issuer).BuildPath()
-	err = utils.GetRequest(ctx, &res, ac.baseUrl, path, nil, ac.authInjector)
+	baseUrl, goErr := clients.GetBaseUrl(ac.baseUrlFunc)
+	if goErr != nil {
+		return res, errors.NewCommonEdgeXWrapper(goErr)
+	}
+	err = utils.GetRequest(ctx, &res, baseUrl, path, nil, ac.authInjector)
 	if err != nil {
 		return res, errors.NewCommonEdgeXWrapper(err)
 	}