diff --git a/package.json b/package.json
index 524a093e..f53d8dc4 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
   },
   "license": "Apache-2.0",
   "dependencies": {
-    "@google-cloud/common": "^1.0.0",
+    "@google-cloud/common": "^2.0.0",
     "@types/console-log-level": "^1.4.0",
     "@types/semver": "^6.0.0",
     "console-log-level": "^1.4.0",
diff --git a/ts/src/config.ts b/ts/src/config.ts
index e4482423..c9574abb 100644
--- a/ts/src/config.ts
+++ b/ts/src/config.ts
@@ -20,6 +20,12 @@ const parseDuration: (str: string) => number = require('parse-duration');
 
 // Configuration for Profiler.
 export interface Config extends GoogleAuthOptions {
+  /**
+   * The API endpoint of the service used to make requests.
+   * Defaults to `cloudprofiler.googleapis.com`.
+   */
+  apiEndpoint?: string;
+
   // Cloud Console projectId to associate profiles with instead of one read
   // from VM metadata server.
   projectId?: string;
@@ -107,10 +113,6 @@ export interface Config extends GoogleAuthOptions {
   // https://nodejs.org/dist/latest-v9.x/docs/api/timers.html#timers_settimeout_callback_delay_args.
   serverBackoffCapMillis?: number;
 
-  // Allows user to specify API URL other than
-  // https://cloudprofiler.googleapis.com/v2.
-  baseApiUrl?: string;
-
   // Time between profile collection.
   // For testing with startLocal() only.
   localProfilingPeriodMillis?: number;
@@ -148,6 +150,7 @@ export interface Config extends GoogleAuthOptions {
 
 // Interface for an initialized config.
 export interface ProfilerConfig extends GoogleAuthOptions {
+  apiEndpoint: string;
   projectId?: string;
   logLevel: number;
   serviceContext: {service: string; version?: string};
@@ -163,7 +166,6 @@ export interface ProfilerConfig extends GoogleAuthOptions {
   backoffCapMillis: number;
   backoffMultiplier: number;
   serverBackoffCapMillis: number;
-  baseApiUrl: string;
   localProfilingPeriodMillis: number;
   localLogPeriodMillis: number;
   localTimeDurationMillis: number;
@@ -184,7 +186,7 @@ export const defaultConfig = {
   initialBackoffMillis: 60 * 1000, // 1 minute
   backoffCapMillis: parseDuration('1h'),
   backoffMultiplier: 1.3,
-  baseApiUrl: 'https://cloudprofiler.googleapis.com/v2',
+  apiEndpoint: 'cloudprofiler.googleapis.com',
 
   // This is the largest duration for setTimeout which does not cause it to
   // run immediately.
diff --git a/ts/src/index.ts b/ts/src/index.ts
index c72a2a6d..7bcd0b50 100644
--- a/ts/src/index.ts
+++ b/ts/src/index.ts
@@ -154,17 +154,17 @@ export function nodeVersionOkay(version: string | SemVer): boolean {
  * needed. Returns a profiler if creation is successful. Otherwise, returns
  * rejected promise.
  */
-export async function createProfiler(config: Config): Promise<Profiler> {
+export async function createProfiler(config: Config = {}): Promise<Profiler> {
   if (!nodeVersionOkay(process.version)) {
     throw new Error(
       `Could not start profiler: node version ${process.version}` +
         ` does not satisfies "${pjson.engines.node}"` +
-        '\nSee https://github.com/GoogleCloudPlatform/cloud-profiler-nodejs#prerequisites' +
+        '\nSee https://github.com/googleapis/cloud-profiler-nodejs#prerequisites' +
         ' for details.'
     );
   }
 
-  let profilerConfig: ProfilerConfig = initConfigLocal(config);
+  let profilerConfig = initConfigLocal(config);
 
   // Start the heap profiler if profiler config does not indicate heap profiling
   // is disabled. This must be done before any asynchronous calls are made so
diff --git a/ts/src/profiler.ts b/ts/src/profiler.ts
index eedfee50..a9ce9d39 100644
--- a/ts/src/profiler.ts
+++ b/ts/src/profiler.ts
@@ -280,14 +280,17 @@ export class Profiler extends ServiceObject {
   private profileTypes: string[];
   private retryer: Retryer;
   private sourceMapper: SourceMapper | undefined;
+  private baseApiUrl: string;
 
   // Public for testing.
   config: ProfilerConfig;
 
   constructor(config: ProfilerConfig) {
     config = config || ({} as ProfilerConfig);
+    const baseApiUrl = `https://${config.apiEndpoint}/v2`;
     const serviceConfig: ServiceConfig = {
-      baseUrl: config.baseApiUrl,
+      apiEndpoint: config.apiEndpoint,
+      baseUrl: baseApiUrl,
       scopes: [SCOPE],
       packageJson: pjson,
     };
@@ -296,6 +299,7 @@ export class Profiler extends ServiceObject {
       baseUrl: '/',
     });
     this.config = config;
+    this.baseApiUrl = baseApiUrl;
 
     this.logger = createLogger(this.config.logLevel);
 
@@ -471,7 +475,7 @@ export class Profiler extends ServiceObject {
     }
     const options = {
       method: 'PATCH',
-      uri: this.config.baseApiUrl + '/' + prof.name,
+      uri: this.baseApiUrl + '/' + prof.name,
       body: prof,
       json: true,
     };
diff --git a/ts/test/test-init-config.ts b/ts/test/test-init-config.ts
index fbe33770..ed2a943c 100644
--- a/ts/test/test-init-config.ts
+++ b/ts/test/test-init-config.ts
@@ -79,9 +79,9 @@ describe('createProfiler', () => {
     localProfilingPeriodMillis: 1000,
     localTimeDurationMillis: 1000,
     localLogPeriodMillis: 10000,
-    baseApiUrl: 'https://cloudprofiler.googleapis.com/v2',
+    apiEndpoint: 'cloudprofiler.googleapis.com',
   };
-  const sourceMapSearchPath: string[] = [];
+
   const disableSourceMapParams = {
     sourceMapSearchPath: ['path'],
     disableSourceMaps: true,
@@ -342,14 +342,14 @@ describe('createProfiler', () => {
     }
   });
 
-  it('should set baseApiUrl to non-default value', async () => {
+  it('should set apiEndpoint to non-default value', async () => {
     metadataStub = sinon.stub(gcpMetadata, 'instance');
     metadataStub.throwsException('cannot access metadata');
 
     const config = Object.assign(
       {
+        apiEndpoint: 'test-cloudprofiler.sandbox.googleapis.com',
         serviceContext: {version: '', service: 'fake-service'},
-        baseApiUrl: 'https://test-cloudprofiler.sandbox.googleapis.com/v2',
       },
       disableSourceMapParams
     );
@@ -358,7 +358,7 @@ describe('createProfiler', () => {
       disableHeap: false,
       disableTime: false,
       logLevel: 2,
-      baseApiUrl: 'https://test-cloudprofiler.sandbox.googleapis.com/v2',
+      apiEndpoint: 'test-cloudprofiler.sandbox.googleapis.com',
     };
     const expConfig = Object.assign(
       {},
diff --git a/ts/test/test-profiler.ts b/ts/test/test-profiler.ts
index 159d29d3..8a290caf 100644
--- a/ts/test/test-profiler.ts
+++ b/ts/test/test-profiler.ts
@@ -42,8 +42,11 @@ const parseDuration: (str: string) => number = require('parse-duration');
 
 const fakeCredentials = require('../../ts/test/fixtures/gcloud-credentials.json');
 
-const API = 'https://cloudprofiler.googleapis.com/v2';
-const TEST_API = 'https://test-cloudprofiler.sandbox.googleapis.com/v2';
+const API = 'cloudprofiler.googleapis.com';
+const TEST_API = 'test-cloudprofiler.sandbox.googleapis.com';
+
+const FULL_API = `https://${API}/v2`;
+const FULL_TEST_API = `https://${TEST_API}/v2`;
 
 const testConfig: ProfilerConfig = {
   projectId: 'test-projectId',
@@ -62,12 +65,12 @@ const testConfig: ProfilerConfig = {
   backoffCapMillis: parseDuration('1h'),
   backoffMultiplier: 1.3,
   serverBackoffCapMillis: parseDuration('7d'),
-  baseApiUrl: API,
   localProfilingPeriodMillis: 1000,
   localTimeDurationMillis: 1000,
   localLogPeriodMillis: 1000,
   sourceMapSearchPath: [],
   disableSourceMaps: true,
+  apiEndpoint: API,
 };
 
 nock.disableNetConnect();
@@ -391,7 +394,7 @@ describe('Profiler', () => {
         labels: {instance: 'test-instance'},
       };
       nockOauth2();
-      const apiMock = nock(API)
+      const apiMock = nock(FULL_API)
         .patch('/' + requestProf.name)
         .once()
         .reply(200);
@@ -407,12 +410,12 @@ describe('Profiler', () => {
         labels: {instance: 'test-instance'},
       };
       nockOauth2();
-      const apiMock = nock(TEST_API)
+      const apiMock = nock(FULL_TEST_API)
         .patch('/' + requestProf.name)
         .once()
         .reply(200);
       const config = extend(true, {}, testConfig);
-      config.baseApiUrl = TEST_API;
+      config.apiEndpoint = TEST_API;
       const profiler = new Profiler(config);
       await profiler.profileAndUpload(requestProf);
       assert.strictEqual(apiMock.isDone(), true, 'completed call to test API');
@@ -442,7 +445,7 @@ describe('Profiler', () => {
         labels: {version: config.serviceContext.version},
       };
       nockOauth2();
-      const requestProfileMock = nock(API)
+      const requestProfileMock = nock(FULL_API)
         .post('/projects/' + testConfig.projectId + '/profiles')
         .once()
         .reply(200, response);
@@ -454,7 +457,7 @@ describe('Profiler', () => {
     it('should successfully create profile using non-default api', async () => {
       const config = extend(true, {}, testConfig);
       config.disableHeap = true;
-      config.baseApiUrl = TEST_API;
+      config.apiEndpoint = TEST_API;
       const response = {
         name: 'projects/12345678901/test-projectId',
         profileType: 'WALL',
@@ -467,7 +470,7 @@ describe('Profiler', () => {
         labels: {version: config.serviceContext.version},
       };
       nockOauth2();
-      const requestProfileMock = nock(TEST_API)
+      const requestProfileMock = nock(FULL_TEST_API)
         .post('/projects/' + config.projectId + '/profiles')
         .once()
         .reply(200, response);
@@ -490,7 +493,7 @@ describe('Profiler', () => {
         labels: {version: config.serviceContext.version},
       };
       nockOauth2();
-      const requestProfileMock = nock(API)
+      const requestProfileMock = nock(FULL_API)
         .post('/projects/' + testConfig.projectId + '/profiles')
         .once()
         .reply(200, response);
@@ -504,7 +507,7 @@ describe('Profiler', () => {
       config.disableHeap = true;
       const response = {name: 'projects/12345678901/test-projectId'};
       nockOauth2();
-      const requestProfileMock = nock(API)
+      const requestProfileMock = nock(FULL_API)
         .post('/projects/' + testConfig.projectId + '/profiles')
         .once()
         .reply(200, response);
@@ -597,7 +600,7 @@ describe('Profiler', () => {
         additionalField: 'additionalField',
       };
       nockOauth2();
-      const requestProfileMock = nock(API)
+      const requestProfileMock = nock(FULL_API)
         .post('/projects/' + testConfig.projectId + '/profiles')
         .once()
         .reply(200, response);