Nango

Nango is a Y Combinator-backed, open-source developer platform designed to accelerate and simplify the creation of product integrations for B2B software and AI applications. The company provides the essential infrastructure for engineering teams to seamlessly connect their applications with over 700 external APIs. By offering a code-first experience combined with AI-generated integration capabilities, Nango handles the complex backend mechanics of integrations—such as OAuth authentication, two-way data syncing, rate limit management, webhooks, and observability. This allows developers to quickly build, deploy, and maintain robust custom integrations on a secure, elastic runtime without the heavy maintenance burden.