CreateOS Builder
From a one-line idea to a running, paid app on CreateOS, with every step proven in a sandbox.
- Built-in tool
- Verified result
- Live data
Give it a one-line app idea and it builds the app with you inside Claude or ChatGPT: it writes the spec and the stack, scaffolds the project, writes the code and its tests, adds Stripe Checkout with a verified webhook, and ends with a live preview URL and a CreateOS deploy checklist. Unlike a plain chat, it runs your code: every step happens in an isolated CreateOS sandbox (Node 24, Python 3.13), it reads the real errors and fixes them, and the checklist of each step is proven by real execution (install, tests, webhook signature tests, health check) before it moves on. Nothing runs on your machine and your keys never enter the sandbox. Best for small APIs and services that take a payment: waitlists, reservations, paid links, webhooks. It does not deploy for you or handle live payments: you get the commands and settings to deploy on CreateOS with your own account, in Stripe test mode.
1 free use
You get the confirmed spec and stack with the provisioning commands, and the project scaffolded and installed in a real CreateOS sandbox, with up to 5 sandbox runs.
- Steps 1 to 2 of 5
- Up to 10 searches in the solver's knowledge base
- In the trial, one small app idea: the spec, the stack and a scaffold that installs in the sandbox.
- sandbox_run: 5×
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Before and after
Same request, two answers. On the left, the AI on its own; on the right, with CreateOS Builder connected.
Build me a waitlist API where people pay US$ 5 to reserve a spot.
“Pastes an Express file with a /waitlist route and a Stripe snippet, says 'this should work', and leaves you to install, run and debug it on your machine.”
“Confirms a 4-behavior spec, scaffolds it in a CreateOS sandbox (npm install exit 0), writes code and tests and fixes the two real failures it hits, adds Checkout for 500 cents with a signature-verified webhook (5 webhook tests pass), starts the server and hands you a live preview URL plus a filled CreateOS deploy checklist.”
What makes this solver different
These points were checked by the Solvers team before the solver went on the storefront.
- Built-in toolRuns a tool on the server, on top of chatting.
- Verified resultThe deliverable is checked automatically by tests.
- Live dataUp-to-date knowledge, maintained with source and date.
What you need to use it
Check before buying. In the guided installation, each item becomes a check with a status.
Compatible AIs
You use the AI you already have. Solvers doesn't charge for it.
Required connectors
Just connect Solvers to your AI. No other tool is needed.
Recommended plan
Suggested by the creator. Custom connectors may require a paid plan for your AI.
What's in the package
A 5-step method from idea to deploy, where each step's checklist is proven by commands run in a CreateOS sandbox
Code runs in an isolated sandbox (Node 24, Python 3.13): install, tests, a fix loop with checkpoints and a live preview URL
Stripe Checkout in test mode with a signature-verified, idempotent webhook and offline tests for it
Knowledge base with source and date: CreateOS Sandbox SDK, limits, networking, deploy, SDKs by language, Stripe Projects, Checkout and webhooks
Ready-made templates: app spec, Express + Stripe skeleton with tests, CreateOS deploy checklist
Updates for version 1.x