How Marketplaces Are Building Their Own Authentication Stacks

In this episode of The Platform Economy, Lucas and Luna explore the growing trend of marketplaces building proprietary authentication systems—not just for identity verification, but for securing API access, user sessions, and payment flows. They focus on Uber's migration from a third-party auth provider to an in-house system, cutting latency by 30 percent and saving an estimated $40 million annually. The conversation covers why off-the-shelf solutions often fail at marketplace scale, how internal auth stacks reduce fraud in peer-to-peer transactions, and what smaller platforms can learn from the trade-offs. Specific numbers: Uber processes over 200 million authentication requests per day; internal development took 18 months and cost around $20 million. Lucas and Luna discuss the strategic rationale, the engineering challenges, and whether this is a viable path for platforms outside the top tier. Plus, the hosts explain why keeping the show ad-free matters to them—and how listeners can support that choice. #Uber #Authentication #Marketplace #PlatformEconomy #Identity #Security #FraudPrevention #API #TechStrategy #InHouseBuild #Latency #CostSavings #Business #Technology #FexingoBusiness #BusinessPodcast #LucasAndLuna #ThePlatformEconomy Keep every episode free: buymeacoffee.com/fexingo