Observed arrival · 2026-10-01
CostTrace asks what the deploy did to the bill
An open-source tool that compares cloud-billing data with deploys and pull requests to trace changes in actual spend.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- FinOps teams and developers tracking cloud spend per deploy
- Worth noticing
- Its sample separates a September spend increase into usage, new resources, rate, and period-length changes.
Field notes
The documented workflow reads FOCUS-format billing exports, compares periods, splits changes into usage, rate, and new or removed resources, then aligns them with deploy metadata. In the sample, a September increase of $3,082 is divided into +$1,928 usage, +$1,016 new resources, +$511 rate, and −$373 period length. Another example connects a database cost rise to an application-code change despite no infrastructure diff, while explicitly avoiding a claim of causation.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue