Got a problem that doesn't fit a product? We build it.
Custom e-Commerce platforms, business systems, and AI agents — built on the same stack that powers our own products. One team, fixed scope, transparent pricing.
Free 30-min consultation · No obligation · Reply within 1 business day
- HK + overseas
- EN / 中文 / 日本語
- From 2 weeks to launch
- Quotes free
Our stance
Different problems. One stack.
A storefront, an Odoo backend, an AI checkout — the goal is the same: fewer steps between the customer and the sale, less manual work, more signal. We don't push a method. We pick whatever actually solves it — and if our own products (Flux, Core, GEO) fit, you get them at cost instead of a rebuild.
Scope
You can ask us for all of this.
01
Most requestede-Commerce platforms
- Full storefronts — catalog, checkout, payments, fulfillment
- Odoo-based commerce — site, stock, invoicing, CRM in one backend
- Marketplace and multi-vendor platforms
- Cross-border storefronts — multi-currency, multi-language, local payments
- Agent-ready commerce — products purchasable inside AI conversations (UCP)
02
Business systems
- Odoo implementations — CRM, sales, inventory, accounting
- Replace Excel and paper workflows with a real system
- Client portals and internal-only tools
- Booking and reservation systems
- Connect the tools you already use
03
AI agents & automation
- AI that answers from your documents and manuals
- Inquiry triage, reply drafting, human-in-the-loop review
- LLM cost routing across models (Flux)
- Multi-step workflow automation via API
- "Could AI even help here?" — we'll tell you honestly
04
Web, GEO & cross-border
- Campaign and service sites, built to be cited by AI
- GEO rollouts for specific industries or markets
- English / Japanese / Chinese versions from day one
- Sell to overseas customers from HK or Japan
- Market research — which country actually buys
Proof
Don't take our word for it. Try a build.
Live interactive demo. Safe demo data, no client information.
Price guide — HKD · 2026
Transparent anchors. Scope adjusted to budget.
Light
Get it live
From HK$12,000
Landing / campaign site, ~5 pages, mobile-ready, EN + 中文
2–4 weeks
Handover docs
Ask about LightMost requested
Standard
Grow the business
From HK$48,000
Boutique online store — catalog, checkout, payments, self-serve updates; or original site + one AI/system feature
4–8 weeks
3 months defect fixes + updates
Ask about StandardCustom
Serious build
On request
Full commerce platform — Odoo backend, marketplace / multi-vendor, cross-border, or UCP agent-ready rollout
Scoped in consultation
Ongoing operation plan
Request a quoteUSD billing available for non-HK corporates (approx. +10%, rounded to the nearest US$10). Prices vary with scope — quotes are free.
The honest comparison
| Hire in-house | Big agency | Mercury | |
|---|---|---|---|
| Cost | HK$25k+/month + hiring | Layers of margin | Only what you need |
| Start | Months | Weeks just to quote | Same week |
| Coverage | One person's skillset | Contracted scope only | Commerce, systems, AI, GEO together |
| Talk to | In-house, smooth | Account manager | The person building it |
| If they leave | Everything stops | Contact changes | Documented, handed over, or productized |
Five steps
From first note to launch.
01
Get in touch
Form below. Reply within 1 business day.
02
Free consultation
30 min online. We map the actual problem.
03
Fixed quote
Scope, price, timeline. Free up to here.
04
Build
You see work in progress, weekly.
05
Launch & run
We don't disappear at launch.
Who keeps it sharp after launch?
Mercury Care is the monthly retainer for updates, store ops, and AI-drafted content. From HK$2,800/mo, cancel anytime.
FAQ
Straight answers
Start
Start with 30 minutes.
You'll leave the call knowing four things — roughly what it costs, how long it takes, whether you should build it at all, and which tasks AI could take over.
- 01 Rough cost
- 02 Timeline
- 03 Build or not
- 04 What AI takes over
Start with 30 minutes.
You'll leave the call knowing four things — roughly what it costs, how long it takes, whether you should build it at all, and which tasks AI could take over.