2025.08.29 | Stytch PHP SDK, user device history

Stytch PHP SDK

The Stytch PHP SDK is live! Developers now can build authentication flows in familiar PHP ecosystems, such as Laravel, Symfony, or WordPress, without hand-rolling HTTP calls.

This release includes support for synchronous and async methods, strongly typed structs for requests and responses, as well as MethodOptions to set headers like X-Stytch-Member-Session in B2B Authorization settings.

To get started, install the SDK with Composer:

composer require stytch/stytch-php

Then import \Stytch and you’re off!

User device history

We've added support for User Device History in B2B and Consumer Authentication. Powered by Stytch Device Fingerprinting, User Device History records known devices for a user, enabling you to send new device notifications and add adaptive MFA with known devices. You can automatically integrate using Protected Auth (if using a frontend SDK) or by passing a Telemetry ID to authentication endpoints.

Learn more in the guides:

• New device notifications: https://stytch.com/docs/fraud/guides/new-device-notifications

• Remembered device flow: https://stytch.com/docs/fraud/guides/remembered-device

Where to find us

Stytch developer Slack

Join the discussion, ask questions, and suggest new features in our official Slack!

Get support

Check out the Stytch Forum or email us at support@stytch.com