Prototype · no real money moves

Proof Before Pay

A voice assistant add-on that checks the contractor’s license and pays only for home repair work that has proof.

Watch the video · 2:59 Open the live demo

The live demo is a simulator built for a computer screen.

Read the code on GitHub

Invoice check · Bright Current Electric

demo data

Pay now

$1,050.00

  • 12 standard outlets$360photo 10:15 AM
  • 2 GFCI outlets$190photo 10:42 AM
  • 6 light switches$150photo 10:58 AM
  • 3 bedroom smoke detectors$210photo 11:12 AM
  • Master bath fan circuit$140photo 11:33 AM

Waits

$370.00

  • Hallway smoke detector$70no photo
  • Electrical inspection$300not in the agreed scope

Pay proven items now, the rest after you confirm.

From the demo. All businesses, people and places in the demo are fictional. No real money moves.

Four checks, and every check names its source

  1. 1

    License

    Looks up each pro’s license number in Florida’s public license registry and leaves out anyone whose number isn’t on record.

    Source: registry, current-as-of date
  2. 2

    Scope

    Before booking, it reads back what you are buying item by item, and what will prove each item.

    Source: the agreed scope
  3. 3

    Visit

    With the pro’s consent, the add-on reads only event times from the door camera, never video, around the booked visit, to log arrival and departure.

    Source: door camera times
  4. 4

    Payment

    Fixed rules (not an AI model) match every line against the scope, the visit times and the photos. Only proven items go to checkout.

    Source: the photo

The working prototype

Prototype screen with a voice request for a licensed electrician: two electricians marked verified against the Florida license registry, a third left out because its license was not found.
Finds licensed pros
Prototype invoice check for Bright Current Electric: $1,050.00 ready to pay, $370.00 waiting because one smoke detector has no photo and an inspection was not in scope.
Checks the invoice
Prototype warranty callback screen: covered outlet work under a labor warranty, evidence attached, and a return visit booked at $0.00.
Remembers the warranty
Frame from the video: the prototype running in the Echo Show simulator, labelled Alexa+ experience simulated.
Watch the video · 2:59

Screens from the running prototype, in the Echo Show simulator I built. Fictional data.

Open a screen to see it full size.

The public numbers

I ran the rules over my own record

141engagements

15booked jobs (13 after we closed on the house)

5went wrong

All 5 would have hit at least one check.

3 of the 5 would have had every problem caught.

Up to $1,219 I had already paid on them would have waited for proof.

The 13 jobs I booked after we closed on our first house in July 2026

In two of those jobs I had already paid before I could check the work.

On my history the visit check would have flagged 4 of the 5 bad jobs, payment only after proof 3, and the license check 1.

What is built, and what isn’t

Built and tested

  • Server with 8 tools and six screen cards
  • Florida license lookup, live for one demo number
  • Invoice check with fixed rules
  • Sandbox marketplace and checkout, no real money moves
  • Classic Alexa skill on the same server, run in the Alexa Developer Console simulator
  • 75 automated checks pass on a fresh copy of the code
  • Public code under the MIT license

Not built yet

  • Real camera events (simulated today)
  • Real payments
  • Use by other families
  • Alexa+ opens add-on tools only to select partners, so the Alexa+ side runs in a simulator I built

What I need next

Partners

more than one state’s license registry and a home services marketplace

A pilot with real families

through housing counselors and nonprofits

Legal advice

holding part of a payment, door camera records, contractor licensing. In Florida: the construction lien law (Chapter 713) and the rules on contractor deposits (s. 489.126)

Measurement

what changes in a family’s finances

Many families don’t own an Echo Show. The checks don’t depend on Alexa: they run on an ordinary server, and the demo already runs in a web browser. So a pilot would start with a phone web page or text messages, and Alexa+ would be one way in, not the only one.

Who is building it

Mikhail Oskola

Mikhail Oskola

Founder, RetailBox Automation, Inc. · Orlando, Florida

I am the user this was built for. We bought our first house in Orlando in July 2026.

470+ jobs on Upwork · 100% Job Success · Top Rated Plus · 480+ clients

Winner, AWS Agents for Humans Hackathon (Everyday Agents track), project StepSpotter