Software that moves money, built like it matters.

Lending engines, bookkeeping portals, payment flows and market dashboards, shipped in weeks with the compliance conversation on day one. We ride on licensed rails, keep card data out of scope and reconcile every cent.

Free call · Fixed-scope quote within 48h

Build sheetFintech
Typical builds
Lender-matching engines, broker workspaces, QuickBooks-synced client portals, Stripe Connect payment flows, market dashboards with an AI analyst.
Timeline
4 to 6 weeks to a product taking real transactions. Clickable by day 7, demo every Friday.
Stack
Next.js / ReactPostgresStripe ConnectQuickBooks APIPlaidLLM structured outputs
Money & data
Card data stays with the processor. Append-only ledger, daily reconciliation, audit log on every sensitive action, KYC through the processor.
Price
Fixed scope, fixed price, quoted within 48 hours of the scoping call.

Four jobs finance teams bring us.

Each one is a product we have shipped, not a slide.

Credit decisioning and lender matching

Upload a P&L, extract the figures with an LLM, calculate DSCR and rank 13 lenders deterministically. A broker assessment went from about 90 minutes to about 10.

See it in Petran

Client portals synced to the books

Live QuickBooks reports, a document vault, Stripe-billed subscriptions and a support desk, bound through one ledger with a fifteen-minute sync.

See it in Trupenny

Market data and personal finance dashboards

Forty-plus live metrics across six asset classes, a market-regime read and a twice-daily AI summary, for about $100 a month instead of a terminal seat.

See it in MacroPulse

Investor and diligence tooling

A timed 130-question team assessment scored across six dynamics, with tiered reports and token billing, inside a startup investment platform.

See it in Team DNA
Licensing and rails

Most fintech MVPs do not need their own licence. The architecture decides that.

The regulated activity in a lending marketplace, a payments product or an investment tool is usually carried by a partner that already holds the licence: Stripe or Stripe Connect for moving money, Plaid for account data, a banking-as-a-service provider for accounts and cards, the lenders themselves for the credit. Your product orchestrates those rails, holds the relationship and the data model, and stays out of the regulated perimeter.

Keep reading

We map which model fits on the first call. If the idea genuinely needs its own licensing path, we say so before anything is built, because that is a lawyer conversation and it is cheaper to have it in week zero than in week six.

Ledgers and reconciliation

Every cent gets a row, and the rows never change.

Finance products fail quietly: a refund lands in a different place from the charge, a payout is netted before it is recorded, a dispute is settled on a phone call and never written down. We build an append-only transaction ledger from the first sprint. Corrections are new entries, not edits, and a reconciliation view compares the ledger to the processor every day.

Keep reading

Before launch we run the boring tests that catch expensive mistakes: penny transactions end to end, refunds and partial refunds, webhook replay, a payout with fees netted, a dispute opened and closed. Trupenny shipped with every receipt linked to a transaction and every report partner-letter ready, because the ledger was designed before the screens were.

AI in the credit workflow

Let the model read the documents. Keep the maths deterministic.

The temptation in 2026 is to hand the whole decision to a language model. We do not. In Petran the LLM does one job: read a client’s statements and extract the figures into a structured schema the broker can see and correct. DSCR, the loan scenario and the lender ranking are ordinary code, so the shortlist is explainable, repeatable and defensible to a client or a regulator.

Keep reading

That split, extraction by AI, decisions by rules, is how we approach every finance workflow that touches an approval: fast where speed helps, auditable where it counts. Thirteen lenders’ spreadsheets and PDFs became structured rule sets, and the output is a ranked, explainable shortlist exportable as a client-ready document.

Stack choices

Coded builds by default, low-code when it is the fastest safe path.

Products that carry money, encryption requirements or heavy calculation are written as code: a React or Next.js front end, a Postgres database, Stripe and QuickBooks through their official APIs, with agentic tooling doing the repetitive work and senior developers owning the architecture and reviewing every change. Where a product is small and template-shaped, a low-code platform can be quicker and we will say so.

Keep reading

You keep the repository, the database and every integration account. Handoff includes documentation, a recorded walkthrough and the runbook for the reconciliation job, so the product is yours to run or to hand to the next team.

Five steps, no month-three surprise.

Fixed scope, a demo every Friday, and a first clickable version around day 7. The full process is on the home page.

  1. Day 0 Scoping call Thirty minutes to map the product and pick the stack. Fixed quote within 48 hours.
  2. Week 1 Wireframes to a clickable version Screens, flows and the data model. On day 7 you click, not read.
  3. Weeks 2 to 3 Core flows, demoed every Friday Built and integrated in the open. You test on the real build.
  4. Week 4 QA, deploy, handoff Deployed to production with handoff docs and a recorded walkthrough.
  5. Ongoing Sprints as usage teaches you A retainer or feature sprints, monitored, async over Slack and Loom.

The Fintech MVP Sprint

For teams shipping a product that moves, manages or reports on money: marketplaces, client portals, lending workflows, finance ops tools.

4 to 6 wks
  • Payments architecture on Stripe / Stripe Connect
  • Append-only transaction ledger and reconciliation view
  • KYC and onboarding via processor-native flows
  • Role-based portal with locked-down finance roles
  • Audit log on every sensitive action
  • Launch QA: penny tests, refunds, webhook replay

Add-onsMulti-currency · invoicing · dispute workflows · accounting sync

Fixed scope · Fixed price
Demo every Friday

Scope it in one call
Free checklist · PDF

The Fintech MVP Launch Checklist

The 30 checks we run before any product that moves money goes live: compliance scoping, payments architecture, security, and the launch-day QA that catches the expensive mistakes. Two pages, zero fluff.

Instant download · No spam, ever

Asked before every fintech build.

Everything else gets answered on the scoping call.

Ask us directly

Usually not, if the architecture is right. Most MVPs ride on licensed rails: Stripe, Plaid or a banking-as-a-service partner carries the regulated activity, and processor-native KYC covers onboarding. We scope which model fits on the first call, and flag early if your idea genuinely needs its own licensing path. That is a lawyer conversation, and better had before building.

We keep card data out of your stack entirely. Hosted checkout or tokenised fields mean the serious PCI burden stays with the processor. Your product stores tokens and ledger entries, never raw card numbers.

Through the official APIs: Plaid for bank accounts and transactions, QuickBooks for the books, Stripe for billing. Trupenny binds all four through one ledger with a fifteen-minute sync and a visible timestamp, so a dashboard is never silently stale.

For reading documents, yes, with a human able to correct every extracted figure. For the decision itself we use ordinary, deterministic code so the result is explainable and repeatable. Petran works exactly this way: the model extracts, the rules decide, the broker sees why.

Australian equipment finance (Petran), UK marketplaces with held deposits (Aptavo), North American bookkeeping and investment tooling. Payment rails and tax rules differ by country; the ledger, reconciliation and audit architecture does not.

Fixed scope, fixed price. The scoping call maps the product, the compliance posture and the stack, and you have a written quote within 48 hours. Price is driven by the number of integrations, the roles in the portal and whether payouts or lending logic are in scope, not by hours.

Moving money? Let us scope it.

Bring the idea, rough is fine. In 30 minutes we map the product, the compliance posture and the stack, and you have a fixed-scope quote within 48 hours.