GMC now covers the entire Merchant API — and the Content API retires Aug 18, 2026

[yasserstudio]

GMC — the open-source Google Merchant Center CLI — just hit a milestone: it now covers all 11 sub-APIs of Google's Merchant API, the successor to the Content API for Shopping.

If you automate Google Shopping, the clock matters: the Content API for Shopping is retired on August 18, 2026. GMC moves you off it cleanly — and catches the traps that don't throw errors.

What it does

• gmc doctor — diagnoses the silent GCP-registration trap (auth succeeds, every call returns empty)
• gmc preflight — validates feeds offline, before they're disapproved (no API, no auth; CI-ready)
• gmc migrate — Content API → Merchant API: scope audit, price-to-micros transform, feed-label safety net
• Full accounts, products, datasources, reports, and feeds-as-code across all 11 sub-APIs

Get started

npm install -g @gmc-cli/cli
gmc auth login
gmc doctor

Typed, --json on everything, classed exit codes, one binary. MIT, free forever.

📚 Docs: https://yasserstudio.github.io/gmc/ · 📦 npm: https://www.npmjs.com/package/@gmc-cli/cli

Still on the Content API? Now's the time to plan the move. Feedback on preflight rule coverage — and ⭐️ — very welcome. What would make GMC more useful for your setup?