Stripe has led a $12 million Series A round in Manila-based online payment platform PayMongo, the startup announced today. PayMongo, which offers an online payments API for businesses in the Philippines, was the first Filipino-owned financial tech startup to take part in Y Combinator’s accelerator program. Y Combinator and Global Founders Capital, another previous investor, both returned for the Series A, which also included participation from new backer BedRock Capital. PayMongo partners with financial institutions, and its products include a payments API that can be integrated into websites and apps,…