Open-source OAuth service for 40+ APIs
Nango (https://github.com/NangoHQ/nango) provides pre-built OAuth flows, secure token storage and automatic refreshes for 40+ APIs and counting. Why we built Nango: We built Nango to solve the pain of accessing OAuth APIs. Despite OAuth being a standard protocol in theory, it remains a major burden to implement it, even with the help of a library. You still need to add endpoints and logic to your app for the server-side dance, implement token refreshes, build & secure your token storage, deal with redirects on the frontend etc. But the worst part is that (almost) every…
In plain words
Nango is an open-source OAuth service that handles authentication flows, token storage, and automatic refresh for over 40 APIs. Built for developers integrating multiple third-party services, it eliminates the complexity of implementing OAuth manually by providing pre-built templates that account for each API's specific quirks and non-standard behavior. The service manages the server-side authentication dance, token security, and frontend redirects, letting developers focus on their core application logic.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Nango (https://github.com/NangoHQ/nango) provides pre-built OAuth flows, secure token storage and automatic refreshes for 40+ APIs and counting. Why we built Nango: We built Nango to solve the pain of accessing OAuth APIs. Despite OAuth being a standard protocol in theory, it remains a major burden to implement it, even with the help of a library. You still need to add endpoints and logic to your app for the server-side dance, implement token refreshes, build & secure your token storage, deal with redirects on the frontend etc. But the worst part is that (almost) every API has quirks and non-standard behaviour. This is why we think open source and knowledge sharing is key here: With the templates in Nango we capture these edge cases and make sure that OAuth just works. How it works: Nango is a small Typescript/Node.js service that handles the OAuth dance, token storage & refreshes for you. It works with any language, API or framework. It is easily self-hostable for free, or as a cloud service if you want to avoid the burden of securing tokens yourself (that’s how we pay the bills). To get started we recommend you take a look at our Quickstart on the GitHub repo: https://github.com/NangoHQ/nango We currently support 40+ popular APIs. Adding a new one is as simple as updating a YAML file, so anybody can contribute one. In the coming weeks we plan to add a dashboard, a proxy to authorise requests, monitoring and more APIs. One thing we learned from talking to other engineers about OAuth is that everybody has their own horror stories: What was the hardest OAuth API you ever used? What made it so difficult? We look forward to your stories and your feedback on Nango! Repo: https://github.com/NangoHQ/nango // Website: https://www.nango.dev
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