Phase attribution for AI coding
Bill-y.
AI coding spend, measured by workflow, not just volume.
See whether AI is used well, not just heavily.
Bill-y splits your team's AI coding spend across the phases of building software: understand, design, build, test, review. Every major coding tool, Windows and macOS, entirely on your own infrastructure.
Token distribution by phase
liveSame monthly bill, finally a shape: heavy build, thin design, healthy review. Now it is a conversation, not a mystery.
See it in action
A quick look at Bill-y turning raw token spend into phase-by-phase insight.
The idea
The barrier to generating code is now zero, so planning gets skipped. A vague prompt goes straight to build, the output misses the mark, and the fix-it loop begins: every retry re-sends the whole codebase and the bill climbs while the code goes in circles.
A token count tells you how much you spent, never whether it was spent well. Bill-y attributes every token to a phase of work, understand, design, build, test, review, so a runaway loop shows up as what it is while there is still something to do about it.
What it does
Phase attribution
Splits spend across understand, design, build, test and review, the real shape of how software gets built.
Cost per outcome
Measures cost against what actually shipped, instead of rewarding raw usage.
All your coding tools
One picture across the AI tools your team codes with: Claude Code, Cursor, Copilot and more.
Yours, on your infrastructure
Your servers, your endpoints, Windows and macOS. An efficiency coach, not a surveillance dashboard.
Distribution analysis
Catches the inefficiency totals hide: blind generation, missing design, rework loops.
Budgets and forecasts
Month-end forecasts with honest confidence bands, and budgets that inform instead of punish.
Editions
Bill-y for Enterprise
On-prem · Windows + macOS fleets
Fleet-wide phase analytics, budgets, forecasts and governance, running entirely on your own infrastructure. Built for organizations where telemetry can never leave the building.
Get started →Bill-y for Developers
Free
A personal phase dashboard for your own AI coding. See where your tokens go, on your machine, with nothing to sign.
Get it free →How it works
Observe
Capture live usage from the coding tools your team already uses, locally on each machine.
Measure
Classify every unit of work into a workflow phase, right where the work happens.
Attribute
See spend by phase, team and project, with budgets and honest forecasts.
One organization, one picture
Offices on three continents, remote engineers, Windows fleets and MacBooks, a dozen teams: every machine measures its own work locally and ships only metrics to one server on your infrastructure.
Leaders see the whole organization in a single governed picture. The code never leaves the buildings, and there is exactly one listener to secure.
Get started
Get Bill-y
Bill-y is available now for teams coding with AI at scale, on Windows and macOS, with every major coding tool. Tell us a little about your team and we'll get you set up.