Garnet Marketplace

Garnet Marketplace turns a one-time Shopify build into a recurring revenue engine: at $80/mo per client, a 20-client agency adds $19,200 in annual MRR with minimal delivery overhead. Because vendor onboarding takes under 6 minutes and migration from Sharetribe or Mirakl happens in under a week, agencies can capture clients locked into legacy marketplace platforms and expand their retainer scope.

Garnet Marketplace's six-minute vendor onboarding is the lever that turns a one-time Shopify build into a scalable retainer. For an agency, the margin ladder starts with a $499/mo Starter Launch that deploys the white-label app, configures up to 10 vendor profiles, and sets up payment routing. Each additional vendor beyond that initial batch requires ongoing configuration, commission rule tuning, and training, which you can bill as a monthly management fee. Because Garnet handles the technical marketplace plumbing, your delivery hours drop to roughly 4h/mo after setup, letting you keep 70-80% of the retainer as profit. The ladder's top rung is migration work: moving a client from Sharetribe or Mirakl in under a week commands a premium project fee, then converts to a higher-tier support retainer. Agencies that ignore the ladder underprice the recurring vendor management work and leave margin on the table.

Stack Overlap Tax is the cumulative cost an agency absorbs when two or more e-commerce tools in a client stack perform the same job: duplicate subscription fees, duplicated integration work, and duplicated QA on every release. The tax rarely appears as one line item. It shows up as slower delivery, more reconciliation between dashboards, and a retainer that quietly loses margin because the agency maintains both systems. The framework asks one question before any addition: which existing tool already covers this function, and what does keeping both cost per quarter? A practical example sits in the WordPress segment, where SureCart replaces several separate plugins for checkout, subscriptions, and cart abandonment recovery, and WooCommerce already carries native cart and payment logic. Agencies that map feature overlap before signing a new vendor keep the client stack lean and protect the hours they can bill.

Integration Depth Ladder ranks e-commerce tools by how deeply they touch client data and workflows, not by feature lists. Rung one is surface: a chat widget or review app reading order history. Rung two is transactional: a cart recovery or subscription layer writing to checkout and payment events. Rung three is systemic: a search or commerce engine that owns product data, pricing logic, and post-purchase flows. Agencies should price and staff each rung differently, because a rung-three deployment carries migration cost and lock-in risk that a rung-one widget never does. The ladder also explains why overlapping tools bloat stacks: two rung-two vendors often duplicate the same checkout hooks. A concrete example is the contrast between SureCart, which replaces several WordPress plugins with one checkout and subscription layer, and a lightweight review app that only reads order data. The higher the rung, the more the agency's retainer depends on integration work rather than tool licenses.

Adopt Garnet Marketplace only when your client is on Shopify and needs a multi-vendor marketplace launched or migrated in under a week, with a budget that supports the $80/mo Scale plan or custom enterprise pricing.

Map every tool to the single job it owns in the buying journey, then remove or consolidate duplicates before adding anything new.

IF your agency serves Shopify-based clients needing a multi-vendor B2B or B2C marketplace without custom code, THEN Garnet Marketplace's $80/mo Scale plan and under-6-minute vendor onboarding make it a low-cost entry point. IF your clients are on WooCommerce, custom platforms, or need enterprise-scale custom quotes, THEN skip because Garnet is Shopify-dependent and pricing scales beyond the flat $80 tier.

A productized sprint that deploys Garnet Marketplace on a client's Shopify store, configures vendor onboarding, payment routing, and branding, and hands over a documented management playbook.