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Greta.Agency
Greta AI Builder · E-commerce

Build Marketplaces
using Existing Code
with AI Generation
for E-commerce

E-commerce products need product catalogues, cart flows, payment processing, and inventory management. Greta delivers complete store architectures in days.

Use AI to generate production-quality code for any feature — from complex data models to polished UI components — with full context of your existing codebase.

3 days
from idea to e-commerce MVP
1.5×
avg. conversion improvement
The Problem

E-commerce infrastructure should take days, not months.

01

Storefront performance directly kills conversion

Every 100ms of load time costs e-commerce stores up to 1% in conversion rate. Custom storefronts built without performance constraints leave money on the table from day one.

02

Inventory and order logic breaks generic platforms

Multi-SKU products, variants, bundles, and fulfilment rules create backend complexity that generic platforms handle poorly and custom builds get wrong.

03

Retention economics are ignored at launch

Acquiring a new customer costs 5–7× more than retaining one. Most e-commerce products launch with no retention mechanics beyond basic email blasts.

The Solution

Greta builds your E-commerce marketplaces — from existing code.

Import your existing codebase via GitHub and use Greta to add features, fix bugs, refactor architecture, or migrate to a new stack — with full codebase context awareness.

AI Generation is included out of the box — no extra configuration, no separate tools, no waiting. Your marketplaces ships with ai generation pre-wired and production-ready in 7 days.

Generate full pages, components, and APIs in seconds
Context-aware — Greta understands your existing stack
Iterative — refine generated code through conversation
Consistent code style across the entire codebase
Use Cases

What E-commerce teams build with Greta.

Real marketplaces products built by E-commerce teams using existing code as their starting point.

Multi-vendor product and service marketplaces
Niche product discovery and curation platforms
B2B procurement and supplier network marketplaces
Pre-owned, resale, and recommerce marketplaces
How It Works

From Existing Code to live E-commerce product.

01

Connect GitHub

Authorise Greta to read your existing repository.

02

Index Codebase

Greta builds a full understanding of your existing code.

03

Extend

Add features, fix bugs, or refactor — with full context.

04

Push

Changes sync back to your GitHub repo automatically.

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Start Building

Your E-commerce marketplaces,
live in 7 days.

Describe what you want to build. Greta writes the code, wires ai generation, and deploys it — production-ready for E-commerce.