Lucas and Luna break down why your API's third-party dependency bill is quietly eating your margin. They walk through a real example: a SaaS startup that used six external APIs — payment, geolocation, email, SMS, identity verification, and a data enrichment service — and found that 40% of their monthly cloud spend went to API calls, not compute. The episode traces how each call compounds: the base fee per request, the overage charges when traffic spikes, the hidden cost of retries when a downstream service fails. Lucas explains why most teams miss the second-order costs — like how a 200ms timeout in an identity verification API triggers a retry that hits the same paid endpoint again. Luna pushes back on the standard advice to 'just cache everything' and they land on a more practical framework: audit your API bill per endpoint, not per service; negotiate volume discounts before you need them; and push critical logic in-house when the external API cost per transaction exceeds your internal cost per compute cycle. A focused, numbers-driven episode for anyone who's ever looked at their AWS or Stripe bill and wondered why it's twice what they budgeted.

#APICosts #ThirdPartyAPIs #CloudSpend #SaaS #DeveloperEconomics #APIReliability #Latency #RetryCost #VendorLockIn #CostOptimization #SoftwareEngineering #BusinessOfTechnology #FexingoBusiness #BusinessPodcast #DeveloperTools #APIManagement #TechSpend #InfrastructureCost

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