> For the complete documentation index, see [llms.txt](https://docs.vida.id/identity-stack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vida.id/identity-stack/authentication/authentication-factors/cryptographic-token-pki/integration-methods/api.md).

# API

The VIDA API is built on the principles of Representational State Transfer (REST) and uses standard HTTP methods and JSON responses, allowing for easy integration and flexibility

## Getting API Credentials

In order to access the authentication API, you will need a client ID and secret

### Sandbox

Steps to getting Sandbox API Credentials

### Production

Steps to getting Production API Credentials

#### **URLs for production and sandbox environment**

Please refer to the following  API URLs, which can be used for production and sandbox environments.

<table data-header-hidden><thead><tr><th width="199"></th><th></th><th></th></tr></thead><tbody><tr><td>API</td><td>Production URL</td><td>Sandbox URL</td></tr><tr><td>Authentication</td><td>https://vsso-auth.vida.id</td><td>https://sandbox-vsso-auth.np.vida.id</td></tr><tr><td>Identity verification API</td><td>https://credential-service.prod.vida.id</td><td> https://sandbox-credential-service.np.vida.id</td></tr></tbody></table>