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The HUB is an API Registry containing hundreds of APIs and is your central place for managing and sharing APIs. Browse public API specifications from many popular brands. Sign up for free and share your own APIs with the world. Or upgrade your plan to use unlimited private APIs.

API Registry

Frustrated with outdated or broken links to API documentations? Make APITree your single point of truth for your technical documentations. On the HUB you can simply host all your APIs and all API versions in one place. This lets you easily compare API versions, align on a global API design and manage your whole API zoo. Introduce our REST API into your processes to always have up-to-date API documentations without manual effort.

Public and Private APIs

Create as many public API documentations as you want and host them for free on the HUB. Of course, there are situations when you want to keep your documentation private. No problem - just upgrade to one of our paid plans and create unlimited private APIs including unlimited API Shares. Private APIs are useful for internal services and for new APIs which are still in development and shouldn't be shared with the world.


There are two ways to be informed about changes in APITree: Follow a user / organization or watch a specific API. By following a user / organization you will be notified of new and deleted APIs. When watching a specific API you'll receive information about important API changes like new releases.
To follow someone use the search, the HUBs 'Explore' page, or a direct URL to navigate to the main page of the user / organization. The main page contains a list of APIs (e.g. Goggles API list). In the left sidebar click Follow. The API changes will then be displayed on your dashboard.
Follow organization If you are interested in a specific API, navigate to it (e.g. Google Firebase Management API) and click on Watch in the left sidebar. Any news about the API are shown on your dashboard.
Watch API
In your personal account you will find the Following page. The page contains an overview of all users / organizations you follow and for which you receive notifications. If you no longer want to follow a user / organization, click on the "Unfollow" button.
In your personal account you will also find the Watching page. The page contains an overview of all APIs you are intereste in and for which you receive notifications. If you no longer want to watch an API, click on the "Unwatch" button.
You can find all notifications about the users, organizations and APIs you follow on your Dashboard. In the case of particularly important events such as the creation of a new API or a new release, you will also be informed by email. The notifications contain links to view the changes directly. Each notification can be deleted so that it disappears from the dashboard.

Unlimited public API documentation hosted for free