Do I have to replace QuickBooks?

No. Keystone sits on top of QuickBooks. Connect it in minutes, import a CSV, or enter things by hand. It reads your data and turns it into decisions. There is no rip and replace.

What do the AI agents actually do, and can they touch my money?

Each agent handles one job. Chaser drafts collections follow-ups in the right tone. Ledger codes bills to the right job and cost code. Scout replies to new leads. Lookout owns the 13-week forecast and the Monday brief. Pricer prices new bids from your past jobs. Answers responds to plain questions with the records attached. Every agent that writes anything is held behind your approval by default. Nothing is sent or posted to your books until you say so, and you set how much each agent can do.

How is this different from my accounting software or the bigger construction platforms?

Accounting software is a system of record you avoid opening. The bigger construction platforms are built for large general contractors and take months to roll out. Most finance tools handle just one slice, like bill pay or pay applications. Keystone is the simple all-in-one decision layer for the owner who is also the finance team. One screen, from the first lead to the final payment.

What is a payer score?

Every payment you collect teaches Keystone how each customer actually pays. It scores customers from 0 to 100 and flags the slow ones, so you can chase the right people first and price future bids with eyes open. New customers start with a low-confidence estimate based on terms.

How does the cash forecast work?

Keystone builds a rolling 13-week forecast. It predicts when each open invoice will actually get paid, lays in payroll and bills due, and flags any week where projected cash drops below your next payroll. It is deterministic and explainable, not a black box.

Is my financial data secure?

Yes. Every company's data is isolated at the database layer, access is role-based, and every financial change is written to an audit log. The QuickBooks connection is read-only, secrets are encrypted, and nothing sensitive is exposed to the browser.

NewThe 2026 State of AI Finance for Construction Report

Win the work. Bill it. Get paid. Without living in the office.

Keystone is the financial command center for contractors who are also the finance team. Its AI reads your bills, forecasts your cash, and chases your slow payers. You just approve. It sits on top of QuickBooks, so your numbers are there on day one.

Start free See the platform

Read-only QuickBooks sync Bank-level encryption No card required

Keystone · Monday

live

Good morning

Can you make payroll Friday?

Yes, +$9k

Heads up. Projected cash drops below payroll the week of Jun 1.

Cash on hand

$0k

+$12k

Over budget

1 job

Park Ave

Overdue

$61k

13-week cash forecastdanger: Jun 1

nowwk 7wk 13

Recovered $38.5k

paid 12 days faster

Chaser drafted 3 reminders

you approved in 20 seconds

90 days

average construction payment cycle

82%

of contractors wait 30+ days past due

$280B

drained from the industry each year by slow pay

56 vs 30

days subs wait vs what GCs assume

Sources: Rabbet 2024 Construction Payments Report, Billd 2025 National Subcontractor Market Report.

The Monday problem

Profitable jobs should not leave you broke by Friday.

Payroll and materials come due before your customers pay. The truth is scattered across QuickBooks, spreadsheets, email, and your head. By the time you spot a bleeding job or a slow payer, it has already cost you. Keystone puts the whole picture on one screen and does the busywork for you.

One system, the whole job cycle

Everything the money side of a job touches. One screen.

Win the work, execute it, bill it, and collect it, on one shared record. Each tile is a real Keystone screen, not a marketing box.

13-week cash forecastWeek 7 dips below payroll

$48,200projected low point

this weekweek 7week 13

Payer score

82/100

Reliable payerDelgado GC · 4 jobs paid

Lien deadline

5days left

Delgado GC · Summit Tower

$22,500 at risk · mechanic's lien filing

Miss it and the right to get paid is gone

Pipeline$3.3M weighted

Bidding2

Ridgeline Apts

$220k

Cedar Retail

$88k

Awarded1

Harbor Point

$1.2M

Active2

Summit Tower

$1.45M

Maple Clinic

$310k

Weekly report Share link

Can you make payroll?Yes, $9k to spare
Jobs over budget1 of 3 flagged
Slowest payerDelgado GC, 41 days

Pay app #6 · retainage$1.45M contract

$72,500held back in retainage

Billed 50% Retainage 10% To finish 40%

Reading the bill Ledger

VendorTimberline Supply

JobSummit Tower

Cost codeMaterials

Amount$8,940.00

Coded to the job automatically. You approve.

Your AI back office

Seven agents do the busywork. You approve.

The admin work you cannot afford to hire for, done overnight and waiting for a yes. Every agent that touches your money or your customers is held behind your approval by default. You decide how much each one can do.

Chaser

Drafts collections follow-ups in the right tone.

Ledger

Codes bills and receipts to the right job.

Lookout

Owns the 13-week forecast and Monday brief.

Pricer

Prices new bids from your past jobs.

Scout

Replies to new leads, nudges the stale ones.

Answers

Plain answers, with the records attached.

Guide runs your setup, one plain question at a time.

Waiting for your approval 3 drafted overnight

Chase Apex Buildersfirm

Chaser · 41 days overdue · $22,500

Code Sunbelt bill$4,120

Ledger · Job 214 · Materials

Reminder to Hillsidewarm

Chaser · sent 9:02am

sent

Nothing sends or posts until you say so.

How it works

Scattered to clear in one sitting. No setup project.

About fifteen minutes. Here is what you see at each step.

Connect a source

Link QuickBooks read-only, drop a CSV, or type one job in. Minutes, not a project.

QuickBooksCSV importBy hand

See the truth

Cash, jobs, payers, and a 13-week forecast populate instantly.

The question you wake up with

Can you make payroll Friday?

Yes, with $9k to spare

Coming in

$61k

Payroll

$52k

Bills due

$9k

Approve and act

Your agents draft the follow-ups and code the bills. You just say yes.

Job margins vs budget

Summit Tower+18%

Harbor Point+6%

Park Ave-14%

Ask in plain words

Talk to your books like you would talk to your bookkeeper.

No menus to learn, no reports to build. Ask the questions you already ask yourself on Monday, and get the answer from your live numbers, not generic advice off the internet.

Answers from your real data, with the numbers behind it
Drafts the reminder, flags the bleeding job, names the slow payer
Plain language. No spreadsheets, no jargon, no black box

Keystone assistant live on your books

Can I make payroll on the 15th?

Can I make payroll on the 15th?Who should I chase first?Which job is bleeding margin?

Read-only sync

Keystone reads QuickBooks. It never moves your money.

Your data, isolated

Every company is separated at the database layer.

Every change logged

A full audit trail on every financial action.

You are in control

No agent sends or posts anything until you approve.

Built in the field

Shaped by real contractors, not a whiteboard.

Every feature earns its place against real back-office pain, tested with a working contractor and ordered by what actually keeps owners up at night: billing, then cash flow, then collections. We are taking on 10 founding design partners to keep building it that way.

Apply to be a founding partner

Live

field-tested on real jobs

founding partners

during the pilot

Questions

Straight answers.

Keystone is the financial command center for construction contractors. It runs the money side of the whole job on one screen: winning work, billing it, and collecting the cash, all on one shared record. Seven AI agents draft the busywork, from collections follow-ups to coding bills, and nothing happens until you approve it. It answers the questions you wake up with every Monday in about five minutes.

Stop running blind between paydays.

Connect your numbers and see your real cash position today.

Start free

Or apply to be a founding design partner.