Tobii Streams SDK

Power screen-based applications with eye tracking

Tobii Streams is the go-to SDK for all Tobii screen-based eye trackers for commercial use. From webcam eye tracking to Tobii hardware eye trackers.

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Power screen-based applications with eye tracking

Easy to integrate
Get up and running within minutes
with the sample code and documentation.
Versatile
Code in C, C#, or Unity on any Android,
Windows, or Linux.
One Tobii API
Switch between Tobii eye trackers
without rewriting your code.

Commercial applications

Be inspired by screen-based commercial application areas from our customers.

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Supported eye trackers

Screen-based integrations

Tobii Nexus

Tobii Nexus software adds intelligent interactivity to your application, working for any user on any device.

Screen-based integrations

Eye tracker for integration

Tobii Eye Tracker 5L is a high-end 120Hz eye tracker peripheral for effortless commercial integration.

Screen-based integrations

Custom screen integration

Custom integration designed to integrate seamlessly into screen-based devices using Tobii algorithms, IP and either Tobii hardware or off-the-shelf components.

*Please note the ”L” in the ”Tobii Eye Tracker 5L”. The Tobii Eye Tracker 5 without the ”L” is a pure gaming device and cannot be used for development purposes.

Technical specifications

Tobii Streams SDK Technical description

API

API*	Tobii Stream Engine Client Version 7.2
API language	C C#
Supported operating systems*	Windows 11 – x86 64bits Windows 11 – ARMv8 64bits Ubuntu 2022.4 – x86 64bits Android 11 and above – ARMv8 64bits

*Different Tobii eye trackers support different capabilities and operating systems. Please see the product sheet for each eye tracker to know what it supports.

Add-ons

Configuration tool	Display setup and calibration tool to get up and running fast and easily.
Sample code	C++, C#, JNI and Unity sample code with documentation to get you up and running fast. Including sample code for implementing a user calibration.
Tobii Gaze Visualization Library	Bubble visualization using GPU for low latency rendering on Windows.

Reference material

API documentation	Tobii Stream Engine Screen-based Developer Guide API reference documentation

Development license

	Single device	Up to 5 devices
Price	€1495 / year Limited time offer valid until September 30, 2026.	€2990 / year
Licensed capabilities	All supported signals per tracker, including Beta level signals for evaluation.	All supported signals per tracker, including Beta level signals for evaluation.
Support	Yes	Yes
Updates & upgrades	Yes	Yes
Commercial use	No	No
Research use	No	No

Get started

To get started, contact Tobii to buy a commercial eye tracker and a development license subscription. We will then share the Tobii Streams SDK with you together with a license key to use it.

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Need support?

If you need support, Tobii Connect is your go-to hub for help, resources, and expert guidance.

Visit Tobii Connect

Tobii License model

Tobii offers two types of software development licenses.

Find out more