> For the complete documentation index, see [llms.txt](https://docs.licensespring.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.licensespring.com/sdks/swift-objective-c-sdk/sso-authentication.md).

# SSO Authentication

**Get User Licenses**

After obtaining an SSO token from your identity provider, call `getUserLicenses` to retrieve all licenses associated with the authenticated user. This is useful for letting users choose which license to activate in multi-license scenarios. The method requires the raw SSO token and the redirect URI registered with your SSO provider. The returned array contains full license objects that can be passed directly into activation flows.

```swift
let ssoToken = "<token-from-idp>"
let redirectURI = "https://localhost:3000"

let licenses = try licenseManager.getUserLicenses(
    ssoToken: ssoToken,
    redirectURI: redirectURI
)
```

***

**Activate a License via SSO**

Pass the SSO token and redirect URI to `activateLicense` instead of a traditional license key. On success, the returned `License` object is stored in `currentLicense` and can be used for all subsequent operations. Ensure the token is fresh, SSO tokens are short-lived and activation will fail with an expired one.

```swift
let license = try licenseManager.activateLicense(
    ssoToken: ssoToken,
    redirectURI: redirectURI
)
```

> **Note:** Tokens are single-use and expire quickly. Always fetch a new token immediately before calling activation.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.licensespring.com/sdks/swift-objective-c-sdk/sso-authentication.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.