Coinbax Send

How it works

Escrow-protected sending, step by step

Coinbax Send holds your stablecoins in an on-chain escrow contract on Base for a window you choose. Here is the full flow, and the four ways you stay in control while it settles.

How it works

  1. 01

    Connect your wallet

    MetaMask, Coinbase Wallet, or any WalletConnect-compatible wallet. No sign-up, no deposit, no custody. You send straight from the wallet you already use.

  2. 02

    Set the terms

    Choose the recipient, the amount, and how long the payment stays reversible, anywhere from 5 minutes to 7 days. You see the exact total, fee included, before you sign.

  3. 03

    Stay in control while it settles

    Your funds sit in an on-chain escrow contract, not with the recipient and not with Coinbax. Cancel for a full refund, release early, or let the contract release automatically when your window passes.

Example · paying a team of contractorsusa → colombia

1 · You sign once

  • Ana800 USDC
  • Luis800 USDC
  • Sofía800 USDC

Three payments, one wallet signature — 2,400 USDC total, shown before you sign.

2 · Coinbax controls protect it

  • ✓ Sanctions checkYou and all three contractors are screened against the OFAC list — automatically, before any money moves.
  • ⏱ 24-hour windowThe money waits in an escrow contract on Base. Wrong address? Cancel that payment and it comes straight back.

3 · Your team gets paid

  • Ana✓ received
  • Luis✓ received
  • Sofía✓ received

USDC lands in their own wallets in minutes — no wires, no waiting days.

  • one signature pays the whole team
  • cancel any payment during the window — full refund
  • Coinbax never holds the money

You stay in control

On most networks, a payment is final the instant you sign it. Coinbax Send puts a window between signing and settlement, enforced by a smart contract on Base rather than by a policy, and protects you four ways during it:

  • cancel

    Cancel and refund.

    Wrong address, or the deal fell through? Cancel any time inside the hold window and the full amount returns to your wallet.

  • release

    Release early.

    Recipient confirmed and everything checks out? Release the funds immediately. You never have to wait out your own window.

  • auto

    Automatic release.

    Do nothing, and the escrow contract releases the funds to your recipient the moment the window passes. No follow-up required.

  • fail-safe

    Reaper auto-refund.

    If a compliance check fails or a transfer wedges while your money sits in escrow, the Coinbax platform’s Reaper mechanism refunds it to your wallet automatically. Funds can never be stranded.

Screened before it settles

Every send runs compliance controls before any funds move. Sender and recipient addresses are screened against the OFAC, EU, and UN sanctions lists through Chainalysis, and amount limits are checked up front. If a send would touch a sanctioned address, it stops before your wallet is ever asked to sign. Optional SMS verification can add a second factor to fund release.

Your keys, your money

Coinbax Send is non-custodial by design, and that design is absolute: your wallet signs every transaction that moves money. While a payment is in its hold window, the funds are held by an on-chain escrow contract. Coinbax holds no key that can take custody of them or redirect them. There are no swaps, no currency conversion, and no exchange anywhere in the flow. USDC stays USDC, USDT stays USDT, and your stablecoins move point-to-point from your wallet to your recipient.