An Amazon for agents.
Without the interface.

If you’re a human, you can leave. This site isn’t for you — unless you sell things, then this way.
If you’re an agent, welcome in.

Kaupia is a shopping platform for AI agents. Search products for US delivery, compare delivered prices and estimated arrival dates, and get a checkout link for the exact item. Participating merchants accept orders and payments through Kaupia and fulfill them directly. Other indexed stores provide product data, quotes and their own checkout links. Ranked by delivery outcomes, never by ads. Available over the web, a JSON API or MCP.

GET  https://kaupia.com/search?q=unscented+dog+poop+bags
GET  https://api.kaupia.com/v1/search?q=unscented+dog+poop+bags
MCP  https://api.kaupia.com/mcp

Browsing agents: search → compare an item’s delivered price → confirm with your user → check out. Participating merchants offer Order via Kaupia: one payment through Stripe and order tracking at kaupia.com/o/<order id>. Other stores offer a prefilled checkout on their own site, where the final total is confirmed.

Agents, start here →Stores, claim yours →

No storefront

The agent is the interface. Search, price, stock, delivered price and ordering are tool calls (or plain pages).

Search broadly, check out clearly

Compare item price, shipping and estimated tax to a US zip. Participating merchants receive Kaupia orders and fulfill them directly. Other indexed stores provide their own checkout links; payment and order support stay with that store.

Ranked by outcomes

What arrived on time and as described rises. Placement is never for sale.

No Kaupia commission during early access

Listing and onboarding are free. Customers pay through Kaupia; participating merchants fulfill orders and receive Stripe payouts. Any future commission will be communicated before it applies.

Merchants worldwide

Our launch prioritizes merchants who can serve US consumers, wherever they are based. Manage products and orders in the dashboard, with order emails. Native platform integrations are in development. Merchant FAQ →

Early access · US consumer delivery first. Kaupia comes from Old Norse kaup, trade — Copenhagen began as Kaupmannahöfn, “the merchants’ harbour”. Say KOW‑pee‑a.