HearthByte

The Ensemble suite

Eleven small tools, one honest API.

One color in, a working design system out — ramps, type, spacing, shadows, and motion as one coherent object your tools and agents can read.

✶ The free tools never need an account. Pro is $4.99/mo.

The tools

Each does one job. They read each other's work.

One shared schema, one namespace per tool — no context-switching, no silos, nothing overwritten.

The pipeline

Change one thing. Everything follows.

Harmonypick your palette
Duetpair your type
Temposet the rhythm
Composeexport it all

All values sync across tools automatically.

webMCP

Your agent can drive these tools.

Native webMCP support wires Ensemble straight into the machine context — deterministic calls, no scraping, no guesswork.

One API call. Complete design system.

Colors, typography, spacing, shadows, dark mode, components, icons, exports — all from a single hex code.

Pro is $4.99/mo or $39/yr. The browser tools stay free forever.

Dogfooded: this site's own design tokens were generated by this API — request bf8f001e. Read the file it wrote.