RapidAPI
Definition updated April 2026
What is RapidAPI?
RapidAPI is the world's largest API marketplace, hosting thousands of APIs from independent developers and companies across every category - data, finance, travel, real estate, sports, social media, and more.
All HappyEndpoint APIs are published on RapidAPI. Subscribing to any of them gives you a single API key that authenticates requests and a single billing account to manage all subscriptions. RapidAPI handles payment processing, usage tracking, and quota enforcement on behalf of API providers.
For API providers, RapidAPI is a distribution channel that eliminates the need to build authentication, billing, and developer portal infrastructure. For developers, it is a one-stop shop for discovering APIs and integrating them with minimal friction.
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