Nanswap Pay: 0% Fees, 1,431 Currencies, Payouts in Nano or Stablecoins

Nanswap, the long-running Nano exchange and swap service, now has a payments product for merchants. Benskalz launched Nanswap Pay on June 3 with a deliberately short pitch: accept Nano with 0% fees, plus more than 1,000 other cryptocurrencies, while Nanswap handles the volatility and conversion. The merchant gets the payout in Nano, NanUSD or USDT.

It slots into a busy stretch for payments on Nano. nanobid built a marketplace where bids are payments, nanodrops pays viewers per minute of watch time, Nagora runs escrow marketplaces, and Subnano sells API-based paywalls. Pay is the first of the batch aimed at ordinary online shops rather than crypto-native users.

How a payment flows

Standard checkout, with the crypto plumbing outsourced.

What the merchant gets

The product page is blunt about the selling points: "Accept Nano with 0 fees and instant settlement", and "Free to use. No fees. No minimums." The currency pages add the line that matters most: "Automatic Nano conversion to stable coin, no exposure to price volatility."

That last part is the real value. A shop can price in USD, let a customer pay with anything on the list, and never touch a volatile asset. The exchange engine in the middle is Nanswap's existing business; Pay is just a checkout layer on top of it.

Integration options

Four documented routes, in increasing order of effort:

• Widget: an iframe checkout for any page. The docs note that no backend is required.
• Payment button or hosted link: a URL with query parameters (publicKey, priceAmount, priceCurrency, shopName, defaultCurrency, invoiceId, callbackUrl). The public key comes from the Nanswap Pay section of the account dashboard.
• REST API: POST /order creates an invoice and returns a deposit address plus a payment link; webhooks fire on every status change, signed with HMAC-SHA512 (x-nanswap-sig). Statuses include waiting, processing, completed, underpaid, and error, which the docs describe as "price moved too much, payout failed".
• Plugins and PoS: one-click WooCommerce and WHMCS plugins, plus a PoS terminal mode that turns any device into a checkout.

Try the checkout before integrating

The demo needs no account and no API key. The landing page embeds a live widget demo and a sample payment button for "My Shop" that opens a hosted checkout for 10 USD. The customer picks a currency from a searchable list, with Nano pre-selected, and the page builds the payment from there. A merchant can click through the entire flow before writing a line of code.

The fine print

"Instant" and "0%" are the product's claims, and the docs show where the edges are. Invoices expire, and the API returns a warningHighFees flag when the customer's chosen chain carries heavy network fees. The 0% fee is Nanswap's cut; a customer paying in BTC or ETH still pays miner or gas fees on that chain. Nano payin, as usual, is free.

The docs do not cover refunds in detail. A cancelled checkout redirects via cancelUrl, and an underpaid invoice is flagged rather than silently accepted. Nothing in the checkout demo requires a customer account.

For a protocol that is often told it has no use cases, this is the least exotic tool yet: a hosted checkout that lets any shop take Nano without managing price risk. Whether merchants bite is a different question, but the demo takes two minutes and the fee is zero. Details and docs live at nanswap.com/pay.