SAN FRANCISCO – October 28, 2026 -- k-ID has launched Kai, a self-serve SDK that makes any app age-adaptive, and is offering it free for the first 10,000 monthly users of each product, every month.
Kai automates age assurance and applies k-ID's permission decisions
The SDK deploys age assurance and then applies k-ID's age, consent and permission decisions to every user. k-ID says most builders can tell users apart only by a self-declared age, which a growing number of markets no longer accept.
Kai targets the gap between fast app development and slow compliance work. According to k-ID, a small team can build a working app in hours but cannot buy the specialist knowledge to serve every age in every market. Larger companies have that knowledge but still build, review and rebuild, because the compliance answer arrives after the code. Kai delivers it inside the coding agents builders already use.
Builders register without a sales call or credit card
A builder registers, states who the app is for and what it does, and adds the SDK. Kai turns that into permissions for each age. In k-ID's example, chat could require a parent's approval for a twelve-year-old, stay open for an adult, and behave differently again for two users of the same age in different markets, with no separate rules written for each. Any combination can be checked in Test before going live.
Certification, legal advice, the product itself, the privacy policy and the terms remain with the builder.
k-ID pushes rule updates to live apps without new code
k-ID updates the rules behind Kai after testing them. Apps receive the changes automatically, with no new code and no action from the builder.
Kai is available from today for web as a JavaScript and React SDK. There is no approval queue. Sign-up is online, and builders can run a real result in Test immediately.
Thirteen launch partners include AWS and Deloitte
k-ID named AWS, Checkstep, Deloitte, FastSpring, GGWP, Helpshift, Inworld, Modulate, Persona, Privately, Tremau, Veratad and Yes2Games as launch partners.
Fifteen teams built on Kai at a Google-hosted hackathon
At last week's Build for Everyone Hackathon, hosted by Google in San Francisco, 15 teams built on Kai across consumer AI, gaming, marketplaces, social and education. Projects included learning apps that adjust complexity by age, age-adaptive trading card and e-commerce marketplaces, and plugins that let teens shop but not complete purchases without parental permission. One game gave adults local networking prompts while children played a scavenger hunt from home.
Judges were Brian Behlendorf, a founder of Apache and board member of the Linux Foundation, the Mozilla Foundation and the Electronic Frontier Foundation; Jonathan Lai, a partner at Andreessen Horowitz and co-founder of a16z Speedrun; and Michael Carney of Google's Venture Capital and Private Equity team.
Lai compared the shift to responsive design for desktop and mobile: "Age-adaptive design will be a best practice for app development in the future."