Y Combinator, in collaboration with Base and Coinbase Ventures, has announced the launch of the "Fintech 3.0 Startup Call." This initiative invites founders to develop innovative on-chain financial systems. The program will focus on three key areas: stablecoins, tokenization and trading, and applications and AI agents. The announcement was made on Y Combinator's official blog, highlighting the potential for new developments in the fintech sector.