Kitewell, the runtime for AI agents at work
Hand your company's routine workto AI agents.
AI does the job once and learns the steps. After that, Kitewell replays what it learned. When a screen changes, AI relearns only the steps that no longer match. It runs on your own PCs. ¥14,800 per computer per month, before tax. Pay monthly and cancel in any month.
Try it for 14 days with no card. Built and sold by Descarty, Inc., Tokyo.
A real run in a demo environment40 seconds, narrated: from reading the orders to entry after a redesign
- Price
- ¥14,800 per computer per month, before tax
- Runs on
- Your own PCs and servers
- To start
- A 14-day free trial, with no card
- To stop
- Pay monthly and cancel in any month
01How it works
Do it once and learn. Replay from then on.
Kitewell does not ask AI to think on every run. So the result is the same each time, runs are fast, and a run costs nothing in AI fees.
- 01
Learn
Describe the job, and AI does it once on the real screens and keeps the steps that worked.
- 02
Replay
From the second run, the learned steps run as they are. No AI is called, and no screen is sent out.
- 03
Relearn only what changed
When a button or a field changes, AI relearns that step alone and records what it changed. When it cannot fix a step, it stops and tells you.
A real run in a demo environment
The same job, compared with asking AI every time
- Tokens spent on screen steps
- 5,228 → 0
- Time spent on screen steps
- 6.1 s → 1.8 s
- When the screen changes
- 1 step of 3
Replaying learned steps calls no AI.
About 3.4 times faster.
Only the changed step goes back to AI (2,140 tokens). The next run is at 0 again.
Medians of ten runs each of the three steps that sign in to a demo portal (November 11, 2026; engine Dagu 2.24.0; model DeepSeek V4.1 Flash). Steps that need AI, such as reading the list, use AI on every run. With those included, one run went from 7,422 tokens to 2,136. Your screens and model will give different numbers.
A robot built on screen coordinates
Clickx 550, y 524 button#sign-in
Element not found: button#sign-in
Kitewell (same changed screen)
ActClick the sign-in buttonRelearned
Checktext "Invoices"Done
| Approach | When a screen changes |
|---|---|
| RPA built on coordinates or elements | Stops until its builder fixes it |
| An agent that asks AI every time | Decides differently each run, so results and costs vary |
| Kitewell | Replays the learned steps and relearns only what no longer matches. When it cannot fix a step, it stops and tells you |
02Uses
More than a replacement for RPA
One product, used in three ways.
Connect systems and AI
Kitewell reaches your systems through screens, files, and APIs. Claude and ChatGPT can call it over MCP.
See the productBuild it in-house, fix it in-house
Describe the job in words, and AI assembles it. Nothing is saved until a person reviews it and presses Apply.
See building in-housePut AI agents into production work
A person can approve partway through. Every run is recorded with screenshots of each screen.
See onboarding
Already running RPA? You do not have to drop it. Start beside it, with the robots that take the most fixing. For RPA owners
03Run records
Real runs against systems built for the demo
These are not customer cases. Each is a record of Kitewell running against a system built for the demo.
Take in orders from retailers' Web-EDI
Kitewell's browser signed in to 3 retailers' Web-EDI, collected 24 order lines, and checked them against past orders in 19 seconds. AI flagged the 3 unusual lines, ten times the usual quantity, a tenth of it, and an item the store had never ordered, with its reasons. A person approved; 21 lines were imported and 3 held to confirm with the retailer. Kitewell built the workflow 8 minutes after the request.
Read invoices into the accounting system
20 supplier invoices read in 72 seconds and checked against their purchase orders; the 3 that differ, on quantity, unit price, and a freight charge, came with the invoice's own words. Accounting approved, and all 20 were entered through the accounting app's screens in 4 minutes. Kitewell built the workflow 23 minutes after the request.
Reconcile freight invoices
30 October invoice lines taken from the carrier's portal and checked against shipment records and contract rates in 30 seconds; the 4 overcharges (+$23.70), on weight, zone, rate, and an accessorial, came with their reasons and evidence. Accounting approved, 26 lines were approved for payment, and the 4 went back to the carrier. Kitewell built the workflow 5 minutes after the request.
More use cases
04Price and how to start
¥14,800 per computer per month, before tax
A computer costs the same whether it builds or runs. Paid yearly, it is ¥148,000 per computer, before tax. Here it is beside other products' list prices.
| Compared | WinActor full version | WinActor runtime | BizRobo! mini | Kitewell Team |
|---|---|---|---|---|
| Per computer, per year | ¥1,098,680 (incl. tax) | ¥300,080 (incl. tax) | ¥900,000 (tax basis not stated) | ¥148,000 (paid yearly, excl. tax). ¥14,800 a month when paid monthly |
| What it does | Build, fix, and run | Run only | Runs on a PC only, one robot at a time | Build, fix, and run |
| Counted by | PC (node-locked) | PC (node-locked) | License | Computer, up to 25 people and 15 projects |
List prices from each vendor's official site, as of October 2026: WinActor's annual license fees from January 1, 2025, and BizRobo!'s annual base fee from its product comparison table. Reseller prices and discounts are not included.
Ways to start
- 01
Try it yourself
Install it from kitewell.com and try it free for 14 days. No card is needed.
- 02
See a demo, then pay monthly
A 30-minute online demo shows it working. Pay monthly and cancel in any month.
- 03
Ask for the one-month onboarding
We build your first job together. ¥500,000 before tax, credited to the first year if you go on.
- 04
Use it under a license contract
A contract paid by invoice. For computers that cannot reach the internet, Kitewell can run on a license key. Please contact us.
To run without a server of your own, there is Kitewell Cloud: no VM to manage, and automation runs serverless. It is priced separately from Kitewell Team. Please contact us.
05Company
Who builds it, and who answers
Descarty is run by its founder, who builds and sells the product alone. Here is what you can check before you buy.
Yota Hamada
Founder and developer
Twenty years building and managing business systems, at systems integrators, a securities firm, an internet services company, and others.
Company
Founded August 2023, in Shibuya, Tokyo. The corporate number and invoice number are on the company page.
Inside
The engine, Dagu, has been open source since 2022. You can read how it runs and where it keeps data.
Who answers
The developer replies to you by email within two business days.
What we don't do
No visits, no on-site work, no building it for you. Instead, the price is public, and you pay monthly and can cancel in any month.
Frequently asked questions
- Is there work it does not suit?
- Yes. Moving large volumes of data through APIs or files is better left to the integration tools you have. So is high-volume routine processing that needs speed. Kitewell suits systems that only have screens, and work that needs judgment and approval.
- Where does the data stay?
- When it runs on your own PC, business data, run records, and credentials stay on that computer. When it runs in Kitewell Cloud, it runs in a cloud Descarty operates. In steps that use AI, the content of screens and documents is sent to the AI model you chose. Runs that replay learned steps call no AI.
- What happens when a screen changes?
- AI rereads the screen and relearns only the steps that no longer match. What it changed is recorded with screenshots. When it cannot fix a step, it stops and tells you.
- What happens if we stop?
- On monthly billing you can cancel in any month. After that you can no longer run workflows in Kitewell. The instructions you wrote in words stay on your computer as YAML files.
- Is it safe to buy from a one-person company?
- Descarty's founder builds and sells the product alone. We do not visit or work on site. Instead, the price is public, you can try it for 14 days, and you pay monthly and can cancel in any month. The engine, Dagu, has been open source since 2022.
- What does it cost?
- ¥14,800 per computer per month, or ¥148,000 per computer when paid yearly, before tax. A computer costs the same whether it builds or runs. Kitewell Cloud, which runs without a server of your own, is priced separately. The one-month onboarding, where we build your first job together, is ¥500,000 before tax.
Start with a 14-day trial
No card is needed. To see it working first, ask for a 30-minute demo.