Worked on the MetaMask/core repository to deliver dedicated development API URLs for the RampsService, enabling isolation of development traffic from UAT hosts and aligning development patterns with production and staging environments. The approach involved implementing environment-specific hosts, updating the TypeScript-based test suite, and revising both JSDoc and Markdown documentation to reflect the new routing logic. All changes were coordinated through changelogs and team communication, ensuring no breaking changes or risk to production and staging users. The work focused on API development and testing, improving the development workflow while maintaining stability and clarity across different deployment environments.