Contributed to the MystenLabs/walrus-docs repository by delivering new Walrus Testnet Web API endpoints to support Atalma.io’s aggregator and publisher workflows. Focused on enhancing external integration, the work involved updating and clarifying Markdown-based documentation to accurately reflect the new endpoints and their usage. This documentation-driven approach improved onboarding for partner projects and reinforced the API-centric design of the testnet tooling. All changes were tracked through traceable commits, ensuring transparency and maintainability. The effort centered on documentation skills and the use of Markdown, addressing integration challenges and enabling faster adoption for Atalma.io and similar external workflow integrations.