Build on Stevai

Build once. Earn from day one.

Ship an AI tool with zero AI cost to you— it runs on your users' own devices and their compute budget. We handle payments, licensing and distribution. You keep the lion's share.

Building on the Stevai developer platform
What you can build

Three shapes, one store.

Tools & apps

From a tiny declarative tool (a manifest + a prompt, no code) to a full app. Local-first: runs on the user's own device model where it can — private, offline, free — and taps the network only when needed, from their budget. Everything runs in Stevai's sealed sandbox.

Connectors

Let the Stevai assistant read and act across systems your users already have — their email, their CRM, their own software. The user authorizes once; the assistant works across their apps. Connect, don't install.

Embedded backend

Build your own product on Stevai's AI and earn a share instead of only paying a bill. Private and secure by design, cheaper network economics, and one integration plugs you into the whole ecosystem.

How publishing works

Submit, check, publish, earn.

1

Submit

Send your package + a manifest describing what it does, what it needs, and how it's priced.

2

Automated check

An automatic review scans it for safety and checks it does exactly what it declares — nothing more.

3

Publish

Clean, contained tools go live instantly. Anything higher-risk gets a certified human review first.

4

Earn

Users buy it once and own it. You keep the lion's share; we handle payments, licensing and distribution.

The safe, contained, on‑device path is the cheap, instant path — the system rewards good behaviour rather than only punishing bad. Every update re‑enters the check, scoped to just what changed, and a kill‑switch stays on every published tool.

The rules

Fair, transparent, in writing.

Buy once, own it — no subscriptions

Tools are a one-time purchase; you may charge for major updates. No recurring billing for tools. (Genuinely need a subscription? Contact us — it's a manual exception.)

Anti-sherlocking, in writing

Stevai builds the popular, horizontal capabilities into the assistant itself; the store owns the deep, niche, private, offline long tail. Build the specialised things Stevai won't.

Clear security split

You own your tool's correctness and security. Stevai owns containment (the sandbox that caps what any tool can do), policing (instant removal), and store compliance.

Honest, predictable fees

The automated check runs on your own compute plan. If a human review is needed, you get a fixed fee and time estimate up front — pay only when you approve, and it's for the review, not the outcome.

The economics

Ship with zero AI cost. Keep 85–100% early.

Your tool runs on the user's own device and their compute budget, so you never pay an AI bill to run it. We take 0% at launch, rising toward ~15% only as the store scales — free tools are always 0%. We handle payments, licensing and piracy so you can just build.

Documentation

Everything you need to build.

Earn by keeping the store safe

There's a third way to earn on Stevai: become a certified validator and get paid to review submitted tools. Certification details are coming soon.

Register interest

Ready to build?

Access is opening in stages. Join early and be first to publish.