Digital downloads
for marketplace operators.
Starters, templates, and playbooks from the work: the same stack and motions I run for JS Labs clients, packaged for teams who want to ship without rebuilding from scratch.
Amazon SP-API Starter
Production-ready Next.js + Supabase starter for hitting Amazon SP-API: OAuth, signed requests, rate-limit handling, and the common catalog/orders/fulfillment endpoints wired up out of the box.
Marketplace Audit Template
A 30-point checklist plus Notion template for diagnosing what's actually wrong with a stalled Amazon or marketplace listing: catalog, content, pricing, ads, and inventory in one pass.
Agentic Ops Playbook
How I scope, ship, and measure the first marketplace AI agent inside a team that's never run one before. Includes the JS Labs decision tree, prompt patterns, and guardrail checklist.
Cross-Border Launch Workbook
The repeatable launch motion for taking a US-native brand into UK / SA / EU marketplaces: localization, compliance, fulfillment, pricing, and a 90-day plan with Figma + Notion worksheets.
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If a template won't cut it and you need the real version of any of this shipped into your stack, that's what JS Labs does.