diff --git a/package-lock.json b/package-lock.json
index cab5bb3..b605317 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,6 +11,7 @@
       "dependencies": {
         "@adobe/aem-headless-client-js": "^3.1.1",
         "@adobe/aemcs-api-client-lib": "git+https://github.com/adobe/aemcs-api-client-lib.git#main",
+        "@adobe/aio-lib-core-config": "^2.0.1",
         "@adobe/aio-lib-core-logging": "^1.2.0",
         "@adobe/aio-lib-core-networking": "^2.0.0"
       },
diff --git a/package.json b/package.json
index 6aaa738..f79f5c1 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,7 @@
   "dependencies": {
     "@adobe/aem-headless-client-js": "^3.1.1",
     "@adobe/aemcs-api-client-lib": "git+https://github.com/adobe/aemcs-api-client-lib.git#main",
+    "@adobe/aio-lib-core-config": "^2.0.1",
     "@adobe/aio-lib-core-networking": "^2.0.0",
     "@adobe/aio-lib-core-logging": "^1.2.0"
   },
diff --git a/src/utils/auth.js b/src/utils/auth.js
index 5d7ec84..fe5561d 100644
--- a/src/utils/auth.js
+++ b/src/utils/auth.js
@@ -9,37 +9,25 @@ OF ANY KIND, either express or implied. See the License for the specific languag
 governing permissions and limitations under the License.
 */
 
-const fs = require('fs')
-const path = require('path')
+const config = require('@adobe/aio-lib-core-config')
 const exchange = require('@adobe/aemcs-api-client-lib')
 const { ErrorCodes } = require('@adobe/aem-headless-client-js')
-const { AUTH_FILE_READ_ERROR, AUTH_FILE_PARSE_ERROR, EXCHANGE_TOKEN_ERROR } = ErrorCodes
+const { AUTH_FILE_PARSE_ERROR, EXCHANGE_TOKEN_ERROR } = ErrorCodes
 const loggerNamespace = 'aem-headless-client-nodejs'
 const logger = require('@adobe/aio-lib-core-logging')(loggerNamespace, { level: process.env.LOG_LEVEL })
 
 /**
  * Returns a Promise that resolves with a credentials JSON data.
  *
- * @param {string} credentialsFilePath - credentials config file path (serviceToken or devToken content)
+ * @param {string} aioConfigKey - aio config key
  * @returns {Promise<any>} the response body wrapped inside a Promise
  */
-async function getToken (credentialsFilePath) {
-  let authFileContent = ''
+async function getToken (aioConfigKey) {
+  const configString = config.get(aioConfigKey)
 
+  let serviceToken = null
   try {
-    const filePath = path.isAbsolute(credentialsFilePath) ? credentialsFilePath : path.join(process.cwd(), credentialsFilePath)
-    authFileContent = fs.readFileSync(filePath, 'utf8')
-    logger.debug('auth file read successfully')
-  } catch (error) {
-    logger.debug('auth file read error', error)
-    throw new AUTH_FILE_READ_ERROR({
-      messageValues: error.message
-    })
-  }
-
-  let config = null
-  try {
-    config = JSON.parse(authFileContent)
+    serviceToken = JSON.parse(configString)
     logger.debug('auth file parsed successfully')
   } catch (error) {
     logger.debug('auth file parse error', error)
@@ -48,16 +36,16 @@ async function getToken (credentialsFilePath) {
     })
   }
 
-  if (config.accessToken) {
-    // If config has DEV token
+  if (!serviceToken) {
+    // Treat config as a DEV token
     return {
-      accessToken: config.accessToken,
+      accessToken: configString,
       type: 'Bearer',
       expires: 24 * 60 * 60 * 1000
     }
   }
 
-  return exchange(config)
+  return exchange(serviceToken)
     .then(data => {
       logger.debug('exchange token success')
       return {