Turnkey AI automation
Bespoke development of custom solutions, workflows, and AI agents.
Services
AI automation and custom software for marketplace sellers
SellerUp is a software agency for marketplace sellers. Two lines of work: engineering — AI automation, AI agents and custom software built into your Amazon and Allegro operations. And marketplace services — launch, product analytics and training on Allegro.
Your AI team 6 AI agents · full-time · 24/7
Agent 1
Listings & buy box Agent 2
Prices & promos Agent 3
Research Agent 4
Stock & supply Agent 5
Ads & PPC Agent 6
Reviews & messages Start with the role that hurts most. Add agents when the value is obvious.
Engineering & automation
Systems we build around your business — and the training to run them yourselves. Not a SaaS subscription.
Automation consultation
Sixty minutes online on your processes: what to automate first, in what order, and what it costs in hours and money.
Consulting & Training
We teach you to build AI automation, agents and analytics yourself — an in-house team, or you personally.
Marketplace services on Allegro
Hands-on operational work on Allegro.pl: turnkey launch, niche analytics, consulting and training.
Allegro Services
Turnkey sales launch, product and niche analytics, consulting and training — for entering Poland’s largest marketplace.
- Product & niche analytics
Demand, competitors, seasonality, and a sales forecast on Allegro.pl + a video consultation.
- Turnkey sales launch
A store on Allegro.pl from registration to first sales + 3 months of support.
- Consulting & training
Personal consultations, store audits, launch coaching, and team training for Allegro.
Custom automation vs SaaS, an agency, or an in-house hire
Four honest ways to solve the same problem. SellerUp is one of them — and not always the right one.
| What you are comparing | Off-the-shelf SaaS | Generalist dev agency | In-house hire | SellerUp |
|---|---|---|---|---|
| Setup time | Same day — sign up and connect an account | 2–6 months, plus time spent teaching them the marketplace | 1–3 months to hire, then months to ramp up | First working piece in weeks; full build in 2–4 months |
| Cost shape | Monthly subscription per seat or per order | Project fee, usually higher because marketplace context is billed as discovery | Salary, taxes and equipment — permanent | Project fee, then optional support; no per-seat licence |
| Fits your process | You adapt your process to the tool | Fits what you specified — marketplace edge cases usually surface late | Fits exactly, at the speed one person can build | Built around your operations; we already know the marketplace edge cases |
| Data ownership | Your data lives in the vendor’s account | Usually yours — confirm it in the contract | Yours | Yours: code and data run on your infrastructure |
| Who maintains it | The vendor — including changes you did not ask for | Usually a separate retainer | The same person, alongside their other work | We support it, or we hand it over with documentation and training |
| When it breaks down | When the last 30% of your process is the part that makes you money | When marketplace APIs and fee logic turn out to be the hard part | When that person leaves | When the task is genuinely standard — then a subscription is cheaper |
SellerUp is the wrong choice if you need a fix this week, or if an off-the-shelf tool already covers your process end to end. In those cases buy the SaaS — we will say so on the call.
FAQ: choosing a service
Which service do I need if I already sell and just want fewer manual hours?
Turnkey AI automation, and within it the agents track. We map where the hours go — listings, prices, stock, ads, reports — and automate the repetitive part first.
If the problem is that the numbers themselves are unreliable, we start with the analytics track of the same service instead: automation built on bad data automates the mistake.
Can we start small instead of committing to a full build?
Yes, and most engagements do. The usual starting point is a strategy session or a process and data audit, which ends in a written automation plan you can execute with us or without us. From there we cut the work into a first piece that lands in weeks, so you see something running before the larger commitment.
Which marketplaces do you work with?
Amazon is the core. Allegro is second, with a dedicated service line for the Polish market covering launch, analytics and training. We also build integrations for Kaufland, Castorama, Leroy Merlin, eMAG, Bol and other European platforms. If a platform publishes a usable API we can build against it; if it does not, we say so before you commit.
How long does a project take, and what does it cost?
The two fixed-price Allegro services are published: turnkey launch from $2,500 and product analytics from $900.
Engineering work is quoted per project. A first working piece usually lands in weeks and a full build in two to four months. Describe the task and we come back with a range within one business day.
Do you work with sellers outside Poland and Ukraine?
Yes. The engineering work — AI automation, custom software and analytics — is location-independent, and we work with sellers across the EU. The hands-on Allegro launch service is specific to the Polish market, with optional expansion to allegro.cz for Czechia and Slovakia. Everything else is delivered remotely.
Case study
How it works for a client
Supply chain · AI agents
AI agents for purchasing from China
A home goods importer with its own store and over 10 marketplaces. Capital pays back 16 days faster, and stockouts are under control.
$100,000a month no longer sits in stock
89 dayscapital payback, down from 105
Amazon · Own systemSoon
One system instead of seven spreadsheets for an Amazon seller
An internal platform: orders, profit and team tasks in one place.
We are writing this case up. Coming soon.
Europe · DataSoon
One data layer across five European marketplaces
Sales, ads and fees from every platform in one picture.
We are writing this case up. Coming soon.
Didn’t find yours?
Describe the task — we’ll tell you honestly if we can take it.
A short brief is enough. We reply within one business day with a clear yes/no and next steps.
- Reply within 1 business day
- Honest go / no-go answer
- No “boilerplate proposal”