Developed a fees and revenue tracking module for the DefiLlama/dimension-adapters repository, focusing on PagCrypto’s operations across Solana, Base, and Polygon blockchains. The work centered on integrating API data sources and aggregating cross-chain transaction information using TypeScript, enabling unified financial analytics within the application. By designing a scalable data-fetching and aggregation system, the module enhanced financial observability and laid the foundation for more granular revenue attribution and multi-chain support. This approach improved the platform’s ability to monitor and analyze revenue streams, supporting better business decisions and product metrics through robust blockchain development and effective API integration practices.