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USDC · Arbitrumstablecoin checkout

Accept USDC on Arbitrum.

The leading Ethereum rollup. Low fees ($0.10), 2-second settlement, and the deepest DeFi ecosystem of any L2. Customers must already hold USDC. PYMSTR does not convert fiat.

1% flat
Fee
Circle
Issuer
~$0.10
Gas
~2 seconds
Speed
//Why USDC on Arbitrumoverview

Why Arbitrum?

USDC on Arbitrum combines Circle's regulated stablecoin with the most popular Ethereum rollup. Native USDC issuance ensures no bridging risks. PYMSTR accepts native USDC only.

Arbitrum One is the largest Ethereum Layer 2 by total value locked, and that depth is the point. It runs on the Nitro stack as an optimistic rollup: transactions execute on Arbitrum and settle back to Ethereum, inheriting Ethereum's security through fraud proofs while gas stays around $0.10 and finality lands near 2 seconds. Because Arbitrum hosts the deepest DeFi liquidity of any rollup, a large share of active stablecoin holders already keep USDC there. For a merchant, that removes the hardest step in stablecoin checkout: the customer is funded on the right chain already, so there is no bridging and no wallet juggling before they can pay. The fee sits slightly above ultra-cheap chains like Polygon, but it buys Ethereum-grade settlement guarantees, which matters for larger payments. One caveat worth knowing: Arbitrum has two USDC tokens in circulation. Native USDC, issued directly by Circle, and the older bridged USDC.e that was moved over from Ethereum. PYMSTR accepts native USDC only. Native has largely superseded USDC.e since Circle's rollout, so most holders already have the right one, but the distinction is worth a glance.

//USDC availability · 4 chains4 networks
// chain.01

Ethereum

Gas~$2-10
Settle~15 sec
USDCUSDT
// chain.02

Base

Gas~$0.05
Settle~2 sec
USDCUSDT
// chain.03

Polygon

Gas~$0.01
Settle~2 sec
USDCUSDT
// chain.04

Arbitrum

Gas~$0.10
Settle~2 sec
USDCUSDT
//USDC on Arbitrum · native vs bridged (what PYMSTR accepts)compiled
TokenWhat it isAccepted by PYMSTRHow to tell
Native USDCIssued directly on Arbitrum by Circle★ YesShows as "USDC" in most wallets; Circle's official Arbitrum contract
USDC.e (bridged)Legacy token bridged from EthereumNo, not acceptedOften labelled "USDC.e" or "Bridged USDC"; swap to native USDC first
//Benefits4 primitives

USDC on PYMSTR.

01

DeFi Ecosystem

Arbitrum has the most DeFi activity of any L2. Users who hold USDC on Arbitrum can pay directly without bridging.

02

Ethereum Security

Arbitrum inherits Ethereum's security through optimistic rollup fraud proofs. Your funds are protected by Ethereum validators.

03

Low Fees

$0.10 per transaction. Low enough for most use cases, with stronger security guarantees than ultra-cheap alternatives.

04

Native USDC

Circle issues USDC natively on Arbitrum. No wrapped tokens, no bridging risks.

//USDC questions6 answers

Short
answers.
No jargon.

Arbitrum One is an Ethereum Layer 2 rollup built on the Nitro stack. Transactions are processed on Arbitrum but settled on Ethereum for security. It is the largest L2 by total value locked.
Arbitrum has the deepest DeFi ecosystem. Users already holding USDC on Arbitrum can pay without bridging. The $0.10 fee is slightly higher than Polygon or Base but comes with Ethereum-grade security through fraud proofs.
No. PYMSTR accepts native USDC only: the token issued directly on Arbitrum by Circle. USDC.e is the older bridged version (originally minted on Ethereum and moved across the Arbitrum bridge); it is a different token contract and is not accepted. If a customer holds USDC.e, they should swap it to native USDC before paying. Most wallets and exchanges now default to native USDC, so this rarely comes up in practice.
Native USDC shows up as "USDC" in most wallets and uses Circle's official Arbitrum contract. The bridged token is usually labelled "USDC.e" or "Bridged USDC." If you are unsure, check the token contract address against Circle's published native USDC address for Arbitrum, or use a decentralized exchange to swap USDC.e to native USDC in one transaction.
Yes. Circle issues USDC natively on Arbitrum (no wrapped tokens). Arbitrum inherits Ethereum's security through its fraud proof system, so settlement is backed by Ethereum validators.
About 2 seconds for transaction confirmation. Funds arrive in your wallet immediately.
More payment options
Why accept with PYMSTR
Build
Integrating USDC? See the APIOne POST creates a payment URL on any chain you accept. HMAC-signed webhooks for completion.
→Read the full stablecoin payment gateway overview→

Start accepting USDC.

Non-custodial. Stable-in, stable-out. Funds settle directly to your wallet on-chain. Live in minutes, not months.

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