diff --git a/examples/any.ts b/examples/any.ts
index 7838b8c..18e7c66 100644
--- a/examples/any.ts
+++ b/examples/any.ts
@@ -7,16 +7,29 @@ import {
   Any,
   GetAny,
 } from "../src/api";
+import { OAuthConfig } from "../src/oauth";
 
-const directLogin: DirectLoginAuthentication = {
-  username: process.env.OBP_USERNAME,
-  password: process.env.OBP_PASSWORD,
-  consumerKey: process.env.OBP_CONSUMER_KEY,
+//const directLogin: DirectLoginAuthentication = {
+//  username: process.env.OBP_USERNAME,
+//  password: process.env.OBP_PASSWORD,
+//  consumerKey: process.env.OBP_CONSUMER_KEY,
+//};
+const oauthConfig: OAuthConfig = {
+  baseUri: "https://apisandbox.openbankproject.com",
+  consumerKey: "qhpewipvmnm3ivjk4eoanjauzac34hm0hlec3tct",
+  consumerSecret: "wshyzpqydxlk2xsckcam3ioo3vbotbrh4ow4v5un",
+  redirectUrl: "http://127.0.0.1:8085/callback",
+  accessToken: {
+    key: "2OEVAOCIT5MJPJ4JSAR5JSNB0AQUOV5YETWSE4YJ",
+    secret: "D30UEBJE4QVO0ZD3LILB2VRTHRM4CPM2QKGIT2VM",
+  },
 };
+
 const clientConfig: APIClientConfig = {
-  baseUri: "https://obp-apisandbox.joinfincubator.com",
+  baseUri: "https://apisandbox.openbankproject.com",
   version: Version.v510,
-  authentication: directLogin,
+  //authentication: directLogin,
+  oauthConfig: oauthConfig,
 };
 
 (async () => {
@@ -26,4 +39,6 @@ const clientConfig: APIClientConfig = {
       "/resource-docs/v5.1.0/obp?tags=Account"
     )
   );
+  // Get current user login
+  console.log(await get<API.Any>(clientConfig, Any)(GetAny)("/users/current"));
 })();
diff --git a/package.json b/package.json
index 0399c87..78804b0 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
     "dotenv": "^16.0.3",
     "global": "^4.4.0",
     "multer": "^1.4.5-lts.1",
+    "oauth": "^0.10.0",
     "superagent": "^8.0.9"
   },
   "devDependencies": {
diff --git a/src/api/client.ts b/src/api/client.ts
index c2a8d25..96f666b 100644
--- a/src/api/client.ts
+++ b/src/api/client.ts
@@ -24,6 +24,7 @@
  */
 
 import superagent from "superagent";
+import { OAuth, OAuthConfig } from "../oauth";
 
 /**
  * OBP API Versions.
@@ -73,7 +74,7 @@ export type DirectLoginAuthentication = {
  *
  * @Property {string} baseUri
  * @Property {Version} version
- * @Property {DirectLoginAuthentication} authentication
+ * @Property {DirectLoginAuthentication} [authentication]
  * @Property {string} [token]
  *
  * @see {@link Version}
@@ -84,7 +85,8 @@ export type DirectLoginAuthentication = {
 export type APIClientConfig = {
   baseUri: string;
   version: Version;
-  authentication: DirectLoginAuthentication;
+  authentication?: DirectLoginAuthentication;
+  oauthConfig?: OAuthConfig;
   token?: string;
 };
 
@@ -256,11 +258,20 @@ export const getRequest = async (
   path: string
 ): Promise<any> => {
   const pathUri = uri(config, path);
-  if (!config.token) {
-    config.token = await getDirectLoginToken(config);
+  let header: any;
+  if (config.oauthConfig) {
+    if (!config.oauthConfig.baseUri)
+      config.oauthConfig["baseUri"] = config.baseUri;
+    const oauth = new OAuth(config.oauthConfig);
+    header = oauth.authHeader(pathUri, "GET");
+  } else {
+    if (!config.token) {
+      config.token = await getDirectLoginToken(config);
+      header = config.token;
+    }
   }
   return JSON.parse(
-    (await superagent.get(pathUri).set("Authorization", config.token)).text
+    (await superagent.get(pathUri).set("Authorization", header)).text
   );
 };
 
diff --git a/src/index.ts b/src/index.ts
index a9a6cbf..586d675 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -51,3 +51,4 @@ export {
   get,
   create,
 } from "./api/client";
+export { OAuth, OAuthConfig } from "./oauth";
diff --git a/yarn.lock b/yarn.lock
index a5bc2bb..9a22171 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2679,6 +2679,11 @@ npm-run-path@^4.0.1:
   dependencies:
     path-key "^3.0.0"
 
+oauth@^0.10.0:
+  version "0.10.0"
+  resolved "https://registry.yarnpkg.com/oauth/-/oauth-0.10.0.tgz#3551c4c9b95c53ea437e1e21e46b649482339c58"
+  integrity sha512-1orQ9MT1vHFGQxhuy7E/0gECD3fd2fCC+PIX+/jgmU/gI3EpRocXtmtvxCO5x3WZ443FLTLFWNDjl5MPJf9u+Q==
+
 object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz"