Bill Wert developed an OAuth 2.0 credential support sample for the pinterest/typespec repository, focusing on secure client authentication within the TypeSpec ecosystem. He implemented a Java-based example that demonstrates how to integrate OAuth 2.0 using the client credentials flow, providing both code and a detailed Markdown README to guide users through client generation with OAuth2Auth. His work included custom implementations for OAuthTokenCredential and its integration with a bespoke client, as well as illustrating how to declare OAuth 2.0 authentication directly in TypeSpec files. This contribution established a reusable, well-documented pattern for secure API integration and credential management.