PruTAN Desktop · for engineers & QA

Find the payment failure before QA ever sees the build.

Run protocol-native validation against your own sandbox — no shared environment, no real card data. Surface hidden ISO 8583, ISO 20022 and REST risk in about five minutes, on your machine, on your schedule.

Windows · macOS · Linux 500 free credits · no expiry PCI-safe synthetic data No credit card cvgfh gfh fgh

Download Free → See Desktop Pricing

prutan-desktop — wiso

wiso>create a purchase request, force a partial approval, then a reversal

planning protocol-native suite…

✓ ISO 8583 0200 purchase · DE55 EMV built

✓ partial approval 0210 · DE39=10 modelled

✓ reversal 0400 · idempotency key checked

⚠ DE48 downstream truncation detected

42 edge cases generated · 3 findings exported

wiso>

Why engineers reach for it

You build against mocks that lie. Desktop doesn't.

Every capability starts with the problem you actually hit, then what Desktop gives you.

“ The mock doesn't reflect what the issuer returns.”

Sandbox recreates real issuer, acquirer and processor behaviour locally — production-realistic, with zero production access. Validate against a real digital twin in minutes.

“ There's always a scenario I didn't think of.”

WISO turns plain-English intent into the full edge-case suite — partial auths, retry storms, schema rejections you'd never write by hand. 95%+ more edge cases, generated automatically.

“ Test data is shallow and risks PCI exposure.”

Luhn-valid PANs, PIN blocks and 150+ payment functions generate scheme-accurate data — synthetic and PCI-safe by design. Real failure conditions, no real card data.

From download to first finding

Risk surfaced in three steps.

1 · Install

One installer for Windows, macOS or Linux. No account wall to clear before you can run it. ~2 minutes

2 · Connect

Point at your sandbox endpoint. No production access, no real card data, no shared environment. ~1 minute

3 · Discover

Type intent in plain English, run, and export a shareable coverage report your team can act on. ~2 minutes

★ Scale

Shared findings build the case for team coverage scores — and, eventually, the enterprise platform. When you're ready

Download Prutan Desktop (Free)

Desktop pricing

Start free. Upgrade only when it pays for itself.

The free tier is activity-gated, not time-limited — 500 credits, no expiry. No credit card to begin.

Free

Individual · activity-gated

500 free credits, no time limit
Windows / macOS / Linux
ISO 8583, ISO 20022 & REST
Sandbox host simulation
Team workspace & sharing
Specialised case libraries

Download Free

Pro

Individual practitioner

$19 /mo

Everything in Free, unmetered core
Full WISO edge-case generation
Interceptor flow manipulation
Generic case library included
Extra credits: $10 / 5,000
Annual: $15.20/mo (20% off annually)

Start Pro

Team

Up to 5 users

$89 /mo

Everything in Pro, for 5 seats
Shared team workspace
Team case library & coverage scores
Specialised libraries available
Priority support
Annual: $71.20/mo (20% off annually)

Start a Team

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Annual billing available on Pro ($15.20/mo) and Team ($71.20/mo). Add-ons: extra credits ($10 / 5,000); generic case library ($10/mo individual, $49/mo team); specialised library ($20/mo individual, $99/mo team). Need organisation-wide assurance? See the Enterprise Solution →

Get started

Send me the download link.

Drop your email and we'll send the installer and your 500 free credits. No sales call, no credit card.

Works offline against your own sandbox
PCI-safe synthetic data — never touches real cards
Findings export to a shareable report
Upgrade only if and when you outgrow the free tier

Name *

Role *

Work email *

Operating system *

No backend is wired on this staging preview — submitting shows the confirmation state only.

From your laptop to the boardroom

Found something that shouldn't ship?

That's exactly how the enterprise journey begins. Your Desktop findings make the case for a Paid Diagnostic — a production-correlated, board-ready Validated Risk Index for the whole organisation.

See the enterprise journey