Documentation

Buy anything online. Pay with your crypto.

Tender turns USDG on Robinhood Chain into real purchases from Amazon, Walmart, Target and Best Buy, shipped to your door. Your funds stay in a vault only you can withdraw from, and nothing is spent without your signature.

US retailers
4US retailers
signature per order
1signature per order
fee, $1.50 minimum
3.5%fee, $1.50 minimum
then any hold is yours to release
14 daysthen any hold is yours to release

Overview

Tender is a way to spend stablecoins on everyday online shopping without cashing out to a bank. You fund a vault with USDG, the dollar stablecoin on Robinhood Chain, paste a product link, approve one quote, and Tender buys the item from the store and ships it to your US address.

Non-custodial

Your USDG sits in a smart contract. Only you can withdraw it.

Priced up front

Item, shipping, tax and every fee are itemised before you approve.

Proof of purchase

Each order shows the store's order number and its confirmation.

How it works

An order moves through six steps. The first three are yours; Tender does the rest.

  1. Deposit USDG

    Connect MetaMask on Robinhood Chain and deposit USDG into your vault. A new deposit becomes spendable 30 minutes after it arrives.

  2. Paste a product link

    Share a link from Amazon, Walmart, Target or Best Buy in the Shop tab. The assistant reads the product and prepares a quote.

  3. Approve with one signature

    Review the itemised quote and sign once in your wallet. That signature authorises exactly this amount for this order, and nothing else.

  4. Tender buys it

    Tender holds the approved amount in your vault, pays the store directly and places the order.

  5. Proof and tracking

    Your Orders tab shows the store's order number and a screenshot of the order confirmation, then the carrier and tracking number once it ships.

  6. Delivered

    The order completes when the parcel arrives. If anything goes wrong before purchase, the held amount returns to your vault.

The vault

TenderVault is a smart contract on Robinhood Chain that holds your USDG on your behalf. It is built so that Tender can never move your money on its own.

Who can withdraw
Only you, at any time, for any amount not held against an order.
What Tender can do
Hold the exact amount you signed for, for the order you signed for. A hold can't exceed your signature.
Deposit hold
New deposits are spendable after 30 minutes, a standard fraud safeguard.
If Tender disappears
Any hold older than 14 days can be released by you directly on-chain, without Tender. It works even if the vault is paused.
Allowances
Depositing approves exactly the amount you deposit, never an unlimited allowance.
Source code
Verified on the explorer and Sourcify. Address below under Contracts.

Pricing & fees

Every quote is itemised, and the total you approve is the total you pay. A quote is held for 10 minutes; after that, ask for a fresh one.

Item
The store's current price.
Shipping
The store's shipping for your order.
Tax
Sales tax for your shipping state.
Purchasing cost
What it costs Tender to pay the store, passed through at cost.
Tender fee
3.5% of the item price, with a $1.50 minimum.

Some stores can't always be priced automatically. When that happens, someone at Tender prices it by hand and the quote appears in your chat. You're never charged for a quote you don't approve.

Limits

Tender is in its launch period, so orders are capped while volumes grow. Limits are enforced on the server for every order.

Per item
$50
Per order
$60
First order
$50
Per day
$100
Per week
$300

Confirm your email in Settings to get the verified check next to your wallet. Verified accounts become eligible for higher limits as they're rolled out.

$TENDER holder tiers

Holding $TENDER lowers what you pay to shop with Tender. Your tier comes from the $TENDER in your wallet (and staked, once staking is live), read from Robinhood Chain.

Member · 100,000+
Tender fee minimum of $1.00 instead of $1.50.
Plus · 1,000,000+
Half off the Tender fee. Your orders and hand-priced items are handled first.
Black · 10,000,000+
No Tender fee on your first $300 of orders each calendar month, then half off. Orders and hand-priced items handled first.

Perks apply at checkout once you've held your tier for the holding period shown on your tier badge, so a balance bought just before an order doesn't count. Discounts apply to Tender's fee only, never to the item, shipping or tax. If your balance can't be read at checkout, the normal fee applies.

The AI assistant

The assistant is the conversation layer on top of a fixed, rules-based purchase flow. It helps you find and price things; it never decides where your money goes.

What it does

  • Reads a product from a link you paste
  • Builds an itemised quote
  • Answers questions about your orders and balance
  • Lists the stores Tender supports

What it can't do

  • Place an order or move funds
  • Set or change a price
  • Override your limits or approvals
  • Promise delivery dates it wasn't given

Orders & proof

"Ordered" should mean something you can check. Once Tender places your order, the Orders tab shows:

Store order number
For example, Amazon order #114-3187059-2078630, with a copy button.
Order confirmation
A screenshot of the store's confirmation page. Tender's account and payment details are hidden.
Tracking
The carrier, tracking number and a link to the carrier's tracking page once it ships.
Status
Approved, Buying, Confirmed, Ordering from the store, Ordered, Shipped and Delivered, updated as it happens.

Tender ships to US addresses only. Your address is encrypted at rest and is seen only by you and the person who places your order.

Wallets & network

Wallet
MetaMask. Phantom can't connect to Robinhood Chain, so it isn't supported.
Network
Robinhood Chain, chain ID 4663. Tender adds it to MetaMask for you.
Currency
USDG (Global Dollar), 6 decimals.
Signing in
One signature that proves the wallet is yours. It can't move funds. Sessions last 24 hours.

Security

  • Typed signatures

    Every approval is an EIP-712 message bound to one quote, one amount and one expiry, so it can't be replayed or reused.

  • Separate sign-in

    The sign-in signature uses its own domain with no contract attached, so it can never authorise a payment.

  • Server-side limits

    Per-order, daily, weekly and store-wide caps are checked on every quote and every approval.

  • Sanctions screening

    Wallets on the OFAC sanctions list are refused at sign-in.

  • Encrypted addresses

    Shipping addresses are encrypted at rest.

  • Operator controls

    Ops actions need an admin wallet plus a one-time code, and are logged.

Contracts

Robinhood Chain mainnet (chain ID 4663).

Support

Most answers are in the FAQ tab in the app. For anything else, use Contact support at the bottom of the FAQ, or email contact@usetender.io. Please include your wallet address and order number.

Ready to try it?

Browse without a wallet, then connect when you're ready to buy.

Open app

See also the Terms and Privacy policy. Figures on this page reflect the launch configuration and may change.