---
title: "Eight transaction checks live in under 30 days"
description: "An inherited financial platform could show that money did not match, but not why. Grail built eight production checks in under 30 days, with every mismatch linked to the records and rule behind it."
canonical: "https://grail.computer/case-studies/transaction-reconciliation-assertion-layer"
last-modified: "2026-08-23"
---

# Eight transaction checks live in under 30 days

> An inherited financial platform could show that money did not match, but not why. Grail built eight production checks in under 30 days, with every mismatch linked to the records and rule behind it.

Canonical URL: https://grail.computer/case-studies/transaction-reconciliation-assertion-layer

## Continue

- [Grail Computer homepage](https://grail.computer/): Managed software takeover, proof, process, and engagement model.
- [Grail Computer developer resources](https://grail.computer/developers): API and agent discovery documentation.
- [Grail Computer llms.txt](https://grail.computer/llms.txt): Curated agent index.