---
title: CLIENT_SECRET_BASIC Setup
description: "Authentication requirements for the token endpoint are set by the application's tokenEndpointAuthMethod property. When the application's tokenEndpointAuthMethod is set to CLIENT_SECRET_BASIC, the Authorization: Basic header represents a Base64-encoded representation of \"username:password\", in which the username is the client_id and the password is the client_secret:"
component: pingone-api
page_id: pingone-api:workflow-library:platform-sso-and-authorization/openid-connect-oidc/client-authentication-methods/environment-configuration/client-secret-basic
canonical_url: https://developer.pingidentity.com/pingone-api/workflow-library/platform-sso-and-authorization/openid-connect-oidc/client-authentication-methods/environment-configuration/client-secret-basic.html
---

# CLIENT\_SECRET\_BASIC Setup

Authentication requirements for the token endpoint are set by the application's `tokenEndpointAuthMethod` property. When the application's `tokenEndpointAuthMethod` is set to `CLIENT_SECRET_BASIC`, the `Authorization: Basic` header represents a Base64-encoded representation of "username:password", in which the username is the `client_id` and the password is the `client_secret`:

```bash
  -H 'Authorization: Basic <client_id:client_secret>' \
```

**Key points**

* Standard HTTP Basic Auth (RFC 7617)

* Credentials: `Authorization: Basic base64(clientId:clientSecret)`

* Widely supported across all platforms

* Default method for most OAuth implementations

The following workflow shows the application configuration to complete a sign-on flow using the `CLIENT_SECRET_BASIC` client authentication method. [Run in Postman](https://god.gw.postman.com/run-collection/3468883-18657ecf-491a-4b99-83b7-5ba7ca742528?action=collection%2Ffork\&source=rip_markdown\&collection-url=entityId%3D3468883-18657ecf-491a-4b99-83b7-5ba7ca742528%26entityType%3Dcollection%26workspaceId%3D3550b170-7818-4801-b1eb-dcb7b3f64263#?env%5BPingOne%20Workflow%20Library%20Template%20%28release%3A%202025-04-17%29%5D=W3sia2V5IjoidGxkIiwidmFsdWUiOiJjb20iLCJlbmFibGVkIjp0cnVlLCJ0eXBlIjoiZGVmYXVsdCJ9LHsia2V5IjoiYXV0aFBhdGgiLCJ2YWx1ZSI6Imh0dHBzOi8vYXV0aC5waW5nb25lLnt7dGxkfX0iLCJlbmFibGVkIjp0cnVlLCJ0eXBlIjoiZGVmYXVsdCJ9LHsia2V5IjoiYXBpUGF0aCIsInZhbHVlIjoiaHR0cHM6Ly9hcGkucGluZ29uZS57e3RsZH19L3YxIiwiZW5hYmxlZCI6dHJ1ZSwidHlwZSI6ImRlZmF1bHQifSx7ImtleSI6ImFkbWluRW52SUQiLCJ2YWx1ZSI6IiIsImVuYWJsZWQiOnRydWUsInR5cGUiOiJkZWZhdWx0In0seyJrZXkiOiJhZG1pbkFwcElEIiwidmFsdWUiOiIiLCJlbmFibGVkIjp0cnVlLCJ0eXBlIjoiZGVmYXVsdCJ9LHsia2V5IjoiYWRtaW5BcHBTZWNyZXQiLCJ2YWx1ZSI6IiIsImVuYWJsZWQiOnRydWUsInR5cGUiOiJkZWZhdWx0In0seyJrZXkiOiJlbnZJRCIsInZhbHVlIjoiIiwiZW5hYmxlZCI6dHJ1ZSwidHlwZSI6ImRlZmF1bHQifV0=)