Docs
Firmly Agentic Commerce
Docs
Set theme to dark (⇧+D)
  1. Docs
  2. How Firmly Works

How Firmly Works

Firmly is the commerce layer between a destination — the surface where a buyer shops (an AI agent, a publisher article, an ad unit, a marketplace) — and a merchant, the seller on their existing commerce platform. The destination integrates once; Firmly translates every operation to each merchant’s native platform.

How Firmly fits: the buyer shops on the destination’s surface; the destination calls Firmly’s APIs for discovery, cart, payment, and order; Firmly places the order on the merchant’s platform; the merchant remains the seller of record

​​ Who owns what

  • Destination — the buyer-facing experience and the buyer relationship.
  • Firmly — discovery across merchants, cart and checkout orchestration, payment, and order placement, plus affiliate attribution. Tax and shipping are calculated by the merchant and relayed through the cart.
  • Merchant — catalog, pricing, inventory, fulfillment, and the seller-of-record relationship. Orders land in the merchant’s order management system as if a customer bought directly.

Firmly’s scope ends at order placement — tracking, returns, and refunds stay with the merchant.

​​ Next steps

Find your solution Which solution shape fits your product. Standard Checkout Guide A runnable end-to-end purchase script — start here. Authentication Set up API access. API Reference Every endpoint.