How it works

If you are selling

Set up a wallet, or let us generate one on your phone with the key kept only by you. Then list whatever you like with its price in dollars, and that is it. When somebody buys, the USDC arrives straight in your wallet: it does not pass through us, nothing is held back, and there is nothing to wait for. dolartienda takes 5% of the price, deducted from that payment inside the same transaction; the price the buyer sees does not change.

If it ships

Sellers can price the shipping. When they do, you see both totals before paying -- pickup at the price, or shipped in one single payment -- and nothing is ever charged on the side. When they do not, shipping is already included. The address goes through the order chat, which is private between the two of you, and the tracking code goes there too. For shipped items, paying with escrow is the sensible choice: the money is held until you confirm it arrived, with generous time for the mail, and if it never arrives it comes back to you.

If you are buying

The price you see is what the seller is charging. A small network fee is added when you pay, somewhere around half a percent, and the payment page shows you the exact total before you confirm.

You pay in USDC from your wallet. The payment goes straight to the seller and it is final, so read their reviews first: here only somebody who paid can leave one, which is why the number means something.

After you pay

Because the payment comes from your wallet, no email address is attached to it: to the network you are an address. Keep the payment ID from your receipt, the one starting pay_, and go to /comprado. That is what connects you to the seller and unlocks your review.

Delivery

The two of you arrange it over messages. We take no part in it and we hold no money in the meantime. If something goes wrong, that stays between the two of you -- except on escrow payments, where dolartienda rules the dispute and the on-chain contract executes the ruling.

Why dollars

Prices are in digital dollars because that is the thing that does not move from one month to the next. Alongside we show what it comes to in pesos at the day's crypto rate, purely as a reference: what changes hands is USDC.

For agents

Every listing is one URL that serves a payment page to a person and an x402 challenge to an agent. There is also an MCP server at /mcp with the search and buy tools, no account needed.