SQ2.ai
Pricing Install Build System

Describe a system.
Get it running.

SQ2 builds complete backend and frontend systems from a description. Node.js, Python, Go — with real architecture, verified integration, and a workspace you can keep evolving.

Runs locally. No code leaves your environment.
BUILD YOUR SYSTEM INSTALL LOCALLY
What You Get

A complete system, not code fragments.

Routes connected to controllers. Controllers calling services. Database schema matching your models. Config from environment. Error handling built in. Every module wired and verified.

Backend

Node.js, Python, or Go — with layered architecture

API

Routes, controllers, services — connected end-to-end

Database

Schema matching your entities, config from env

Frontend

React UI calling your real API endpoints

Docker

Compose setup, ready to start

Auto-starts backend. Verifies health endpoint. Registers preview.
Example Result

What a build produces

sq2 build "Node.js backend with Stripe webhooks and order tracking"
Stack detected
node / express · complexity: advanced · archetype: webhook_system
Generated
backend/src/server.js, config/index.js, config/database.js
backend/src/routes/orders.js, controllers/orders.js, services/orders.js
backend/src/routes/webhooks.js, handlers/webhookHandler.js
backend/src/middleware/verifySignature.js, errorHandler.js
frontend/src/App.jsx, api.js, components/OrderList.jsx
Verification
Wiring: VALID · routes registered · services connected
Quality: 100% (data flow, error handling, logging, env, deps)
Runtime: port 8000 reachable · /health OK
Result
System ready.
Backend: http://localhost:8000
Frontend: http://localhost:3000
Express React SQLite Docker 22 files
Why SQ2

Not fragments. Connected systems.

Code generators

  • ×Produces disconnected files
  • ×Routes don't call services
  • ×Config declared but not used
  • ×No error handling
  • ×Wrong stack when you ask for Node
  • ×Starts over every time

SQ2

  • ✓Routes wired to controllers to services to data
  • ✓Respects your stack — Node, Python, Go, TypeScript
  • ✓Error handling, logging, env separation built in
  • ✓Wiring validated, orphan modules detected and repaired
  • ✓Auto-starts, verifies health, registers preview
  • ✓Persistent workspace — continue building, snapshot, restore
How It Works

Describe. Build. Run. Continue.

1

Describe

Write what you want. Specify the stack if you need to. SQ2 detects complexity and picks the right architecture.

2

Build

Generates files, validates wiring, checks quality. Routes connected to services, config from env, error handling in place.

3

Run

Auto-starts backend, verifies health endpoint, registers preview URL. System running in seconds.

4

Continue

Keep building. Add features, connect APIs, improve UI. Workspace persists. Snapshots protect every step.

Build your first system.

Describe what you need. Get a connected, verified, running system — then keep evolving it.

BUILD YOUR SYSTEM INSTALL LOCALLY
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