Nango is an open-source platform for building product integrations that connects applications and AI agents with over 900 APIs through managed authentication, request proxying, and serverless functions.
The platform addresses the complexity of integrating multiple external APIs by providing three core primitives. Auth handles OAuth, API keys, and token refresh across supported providers, with a white-label flow that can be embedded in applications. The Proxy primitive allows authenticated API requests on behalf of users, managing credential injection, retries, and rate limiting. Functions let developers write integration logic as TypeScript code deployed to Nango's runtime, with the option to generate functions via AI from use-case descriptions. This approach eliminates the need to build authentication flows, manage credentials, handle scaling, or maintain observability infrastructure separately.
Nango suits teams building multi-API integrations, AI tool calling systems, data syncing pipelines, webhook processing, or API unification layers. It works with any backend language and integrates with AI coding tools and agent SDKs. The platform is particularly valuable for products that need to support integrations across many customer-specific APIs without maintaining separate integration code for each one. Developers can start with a free account and embed authentication flows directly into their applications.
The project maintains active development with regular updates to its integration library and platform capabilities. The codebase is written in TypeScript and actively maintained with ongoing improvements to the runtime, proxy, and function execution systems. The project sustains a public community presence through documentation and community channels, indicating ongoing engagement with users building integrations.
