Your businesshas a logic.Build from it.
Describe the business in plain language. modelARch captures it in an explicit model, helps shape each role's experience, and generates the backend and frontend from that same source.
- ✓One model
- for business, experience, and code
- ✓Try it first
- in the browser, as every role
- ✓Your code
- a full-stack project your team can extend
The stack your team takes home
- Python
- FastAPI
- React
- TypeScript
- PostgreSQL
- Docker
Code is the outcome. The model is the source.
People, information, rules, permissions, and flows stay explicit in one place. Design, browser experience, and generated code all start there.
- 01
Business decisions become structured knowledge you can inspect and refine.
- 02
Screens, roles, and flows are shaped from the same explicit model.
- 03
Update the model, then generate a new output deterministically from the revised source.
From business knowledge to code with tests.
Describe the operation in plain language, watch it become an explicit model, try the product as each role, and take the generated code when it's right.
Explain how the business works
Describe the operation in plain language. The guide helps uncover the people, information, actions, rules, and flows the product needs.
See the system take shape
The conversation becomes an explicit model: people, things, actions, rules, and views you can inspect and refine.
Walk the product as each role
Before any code exists, try the experience each role will get and catch gaps while they are still changes to the model.
Take the app and its code
Generate a full-stack application with tests, open it in the browser, and take code your team can read and extend.
Your app. Your stack. Your code.
FastAPI and React/TypeScript at the core, with the database, cache, and queue you choose. Docker and tests included.
- Python
- FastAPI
- React
- TypeScript
- Tailwind CSS
- PostgreSQL
- MySQL
- MariaDB
- SQLite
- MongoDB
- Redis
- RabbitMQ
- Amazon SQS
- Celery
- Docker
See the product working.Then take the code.
Backend, frontend, database setup and migrations, Docker, and tests — generated from the model you validated.
Backend and frontend
Python/FastAPI APIs and a React/TypeScript interface generated from the same model.
Data and infrastructure choices
Database setup and migrations, plus the data engine, cache, and queue selected in modelARch.
Browser proof
Walk through screens, roles, and responsive layouts before you take the code.
Code you own
Download, inspect, run, and extend the full project with your team.
Deterministic generation
The same explicit model produces the same code in the deterministic generation step.
Design that carries through
Brand, typography, and visual tokens from Design Studio reach the generated app.
The difference isn't a better prompt. It's having a model.
Prompt-first builders are optimized for getting to a working first version fast. modelARch adds a deliberate step: make the operation explicit so the product can keep evolving around it.
The working product is the primary artifact for iteration
The explicit business model is the primary source for generation
Roles, rules, and workflows are expressed through prompts and implementation
Roles, rules, states, permissions, and flows are inspectable model elements
Changes move directly through the evolving product and code
Changes begin in the model, then shape role experiences and generated code
A strong fit when speed and direct product iteration lead the decision
A strong fit when the app must carry an operation and a team will inherit it
When the app has to run the business, not just demo the idea.
The prototype is becoming a product
Roles, permissions, and workflows now matter more than adding another screen.
The operation is bigger than a spreadsheet
Turn bookings, approvals, inventory, or service delivery into software built around how the business works.
The client needs more than a demo
Align on the model and each role's experience before handing over code the client can own.
A team will inherit the code
Start with a full-stack project, tests, and the business decisions behind it — not a mystery codebase.
Pay for building it, not for taking it.
One monthly plan with credits: modeling and generating the app consume them. Taking what you built — code, deploys, exports — costs nothing. Prices will be published at launch.
Start with the people, rules, and flows that make the business work.
Give your product a source of truth before it becomes source code.
modelARch is opening soon. Leave your email and we'll let you know the day it does.