The system consumer credit runs on.

Capcells is where a lending product is defined, proven correct, and run. One exact, versioned engine behind a proving workspace and a live credit core.

A team reviewing work together at a table
A person standing by an office window
Financial district towers seen from street level

What we mean by exact.

Most of a lending product’s promises live in spreadsheets, policy documents, and code nobody can point to. Capcells is where they live instead.

A product is written once, as a structured definition with a signature and an effective date. The same engine proves that definition against its market before launch, and runs every loan made under it afterwards. Nothing is restated on the way: what compliance approved is what charges the borrower.

Money moves in integer minor units and rates in basis points, rounded once by the market’s own rule, so nothing on a schedule is a floating-point approximation. Any number on a statement traces back to the exact version that produced it.

How we got here.

A short history of the company, and of the one exact engine that has sat underneath it from the start.

April 2025

Founded

A product's promises should be provable, not just written.

2025

Development begins

Work starts on one exact, versioned core.

2026

The engine takes shape

Origination, servicing, and an append-only ledger.

2026

Proving in simulation

A product is checked against its market before launch.

Today

One system, two surfaces

Prove a product, then run every loan on the same engine.

Two colleagues talking through a decision at a table

A lending product is a promise, measured in money. When the math is exact and the record is provable, that promise holds.

It holds for the borrower reading a statement, the officer signing the terms, and the regulator asking to see the work. None of it is trust in a spreadsheet; it is a matter of record.

That is the ground everything here stands on, and it does not bend for a new market or a harder rule.

The tricky parts of credit. Reasoned through, in writing.

All articles

The schedule is the product

Nobody repays a rate. They repay a schedule: twelve dates and twelve amounts. What an installment product actually promises, where its cost peaks, and why the rounding rule is part of the definition.

07 Jul 20265 min read

CAT, explained for people who ship credit products

Mexico’s Costo Anual Total is the number a credit product is judged by. What it measures, how CONDUSEF’s method frames it, and why it belongs at definition time, not audit time.

09 Jun 20265 min read

Product versions are evidence

Immutable versions, a recorded human signer, and a hash-chained audit log. Why a credit catalog should be built like evidence, and why every loan binds to the exact version it originated under.

30 Jun 20264 min read