Blog

How usage billing
actually works.

Practical writing about metering, rating, reconciliation and the awkward cases in between. No thought leadership, no invented statistics.
Engineering26 July 20266 min read

Push, pull or sync: three ways to get usage data into billing

How usage reaches your billing system decides how long the project takes. Most platforms support exactly one of the three motions — and it is rarely the one your data suits.

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Buying5 min

Self-serve vs sales-led billing platforms

"Contact us for pricing" is a business model, not an oversight. Here is what it costs you in time, leverage and optionality — and when it is genuinely the right trade.

25 July 2026
Buying6 min

How to choose a usage-based billing platform in 2026

Feature matrices all look the same. These are the questions that decide whether the thing works for you in eighteen months.

24 July 2026
Fundamentals7 min

Build vs buy: the real cost of DIY usage metering on a warehouse

The prototype takes a fortnight. This is an honest account of what comes after it, and when building is genuinely the right call.

21 July 2026
Comparisons6 min

Why Grafana dashboards can't bill anyone — and what to use instead

Grafana is excellent at visualising data you already model. Billing needs the four things it deliberately does not do.

14 July 2026
Reconciliation6 min

How to audit your carrier or supplier invoice (and what you'll probably find)

The four categories every discrepancy falls into, why collapsing them into one number makes the result useless, and how to run the check.

7 July 2026
Telecom7 min

CDR billing explained: from raw call records to a defensible invoice

What a call detail record contains, how prefix rating actually works, and why increments and minimums cause more disputes than rates do.

30 June 2026
AI & SaaS6 min

How to bill for AI tokens: metering LLM usage properly

Input and output are different prices, fractions of a penny do not survive floats, and your margin moves every time a customer changes their prompt.

16 June 2026
Fundamentals6 min

What is usage-based billing? A plain-English guide

What it actually means, why it is harder than it looks, and the six things that have to be right before you can defend an invoice.

2 June 2026

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