Open Source

We pull the genuinely reusable pieces out of our products and publish them as standalone, zero-dependency, MIT-licensed npm packages — the same code we run in production.

• @acjlabs/google-taxonomy-verify — Google Product Taxonomy data plus verification helpers: catch an LLM classifier fabricating a plausible-but-wrong taxonomy ID before you trust it. Works in Node, Bun, Deno, and the browser.
• @acjlabs/au-tax-utils — Australian ABN checksum validation and GST math (10% rate, inclusive/exclusive conversions, tax-invoice threshold).
• @acjlabs/apparel-attribute-utils — apparel size and color canonicalization: normalize messy synonyms (“Medium”, “2XL”, “navy blue”) to a fixed controlled vocabulary.

All three are live on npm and on our GitHub.