APIs power the exchange of data and functionality between platforms, but finding the right endpoints and managing integrations can be a challenge. API marketplaces consolidate a wide range of APIs from multiple providers, making it easier to discover, test, and connect services without custom sourcing or lengthy onboarding. Users can compare pricing, usage limits, and documentation side by side, streamlining the selection process for everything from payments to messaging to analytics. Built-in dashboards track consumption, monitor uptime, and handle authentication keys in one place. Many marketplaces offer sandbox environments for safe prototyping and support direct billing or subscription management. For developers and product teams, this centralization accelerates deployment and reduces the friction of connecting third-party tools.