> 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-swift-objective-c-sdk.md).

# SSO Authentication - Swift/Objective-C SDK

SSO authentication implementation specific to the Swift and Objective-C SDK.

**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.


---

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