EN
Get started →

Accept ARB (Arbitrum) payments

Give each customer a ARB deposit address on Arbitrum and receive every payment in your own wallet, minus 1.25%. Free to integrate: no account, no API key.

Get started →API reference
0.5minimum ARB
20confirmations
~5sto your wallet
1.25%fee, down to 0.25%

How to accept ARB (Arbitrum)

  1. Create a ARB deposit address

    Send one request with the URL to notify and the EVM wallet that receives the money. The same callback URL always returns the same address.

    curl "https://api.trezorpay.com/arbitrum/arb/create/?callback=https://your.shop/paid?order=42&address=0x62f90a0Cde262228Afd74939E04d32E23Ec25677&pending=1"

  2. Show the address to your customer

    Display address_in, with a QR code from /arbitrum/arb/qrcode/ if you like. Your customer pays at least 0.5 ARB; the address never expires and can be paid any number of times.

  3. Receive the funds and a signed callback

    After 20 confirmations (about 5 seconds), we forward the payment to your wallet and call your URL with pending=0, value_forwarded_coin, txid_out, coin=arbitrum_arb, signed in x-ca-signature. Answer *ok*.

ARB on Arbitrum

Arbitrum One is an Ethereum layer 2 with sub-second blocks and very low fees.

For a ARB token payment, we send the gas the transfer needs ourselves and charge its cost in ARB at the market price. Your wallet never needs native coin.

Prefer to see the numbers first? Try the simulator, or read how fees and callbacks work.

ARB (Arbitrum) payments: questions

What is the minimum ARB (Arbitrum) payment?

0.5 ARB. A smaller payment is still recorded and shown in /logs/, but it is not forwarded, so that the network cost can never eat the payment.

How long until a ARB (Arbitrum) payment reaches my wallet?

We forward it once it has 20 confirmations on Arbitrum, which takes about 5 seconds on average, then send your server a signed callback with the forwarding transaction id.

Who pays the network fee for ARB (Arbitrum)?

We send the gas the token transfer needs and recover its cost in ARB at the market price, together with our 1.25% fee. You never need native coin in your wallet.

Do I need an account to accept ARB (Arbitrum)?

No. There is no sign-up and no API key: one request to /arbitrum/arb/create/ with your callback URL and your EVM wallet returns a deposit address. Funds go straight to that wallet.