> For the complete documentation index, see [llms.txt](https://docs.id.gov.sg/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.id.gov.sg/introduction/overview.md). # Overview ## What is sgID? sgID is a Singapore government identity provider that allows Singapore residents to **authenticate with applications** and **share government-verified data** about themselves via the Singpass mobile app. Some examples of products that have integrated with sgID are Singapore's [National Health Appointment System](https://book.health.gov.sg/) and [FormSG](https://form.gov.sg/).
A GIF that shows an example flow of a user logging into FormSG with sgID

Example FormSG login flow with sgID

sgID comes shipped with your [Singpass mobile app](https://app.singpass.gov.sg/). That means **anyone with the Singpass mobile app** can log in with sgID! Check out our [demo app](https://demo.id.gov.sg) to experience the login flow for yourself! ## Can my product integrate with sgID? sgID is publicly available for integration. Use your Singpass mobile app to log into our [developer portal](https://developer.id.gov.sg/) to generate credentials for your app! ## What data is available via sgID? By default, apps that have integrated with sgID can request for the user's full name. The full list of data fields that sgID supports are available at our [data catalog](https://docs.id.gov.sg/data-catalog) page. If your app requires access to more data fields, you can file a service request to sgID via this [form](https://go.gov.sg/sgid-contact). Note that Singapore government public officers will have access to the full data catalog after they verify their email in our developer portal. ## How much does it cost to integrate with sgID? sgID is completely free to use! There are no integration or usage costs associated with sgID. ## Next steps If you're ready to try out sgID, get started [here](/introduction/getting-started.md). If you've already registered your client, start [integrating with sgID](/introduction/getting-started/integrating-with-sgid.md). Other shortcuts: * [Frequently asked questions](/faq-developers.md) * [Learn more about sgID](/learn-the-basics/protocols/sgid.md) * [Contact us](https://go.gov.sg/sgid-contact) if you have any other questions!