Accept USDC on Base.
Coinbase's Layer 2 network. Ultra-low fees ($0.05) and 2-second confirmations. Native USDC support. Customers must already hold USDC. PYMSTR does not convert fiat.
Why Base?
USDC on Base benefits from Circle's native issuance and Coinbase's ecosystem. The cheapest way to transact with the most regulated stablecoin. PYMSTR accepts native USDC only.
Base is Coinbase's Layer 2, an OP Stack optimistic rollup that settles to Ethereum for security while keeping gas around $0.05 and finality near 2 seconds. What makes Base distinct from the other low-fee chains is distribution: it is wired directly into Coinbase. The roughly 100M+ verified Coinbase users can withdraw USDC to Base in a couple of taps, no bridging and no external wallet setup, which removes the single biggest friction point in stablecoin checkout: getting the customer funded on the right chain in the first place. For a merchant whose audience skews retail and US-based, Base is often the highest-conversion option precisely because the on-ramp is already in the customer's pocket. USDC on Base is native (issued directly by Circle), so the USDC.e bridged-token caveat that applies on Polygon and Arbitrum is not a concern here. Note Base is USDC-only: there is no native USDT on Base, so route USDT volume to Polygon, Arbitrum, Ethereum, or BNB Chain.
USDC availability: 4 chains
You choose which ones your checkout accepts.
| Network | Gas | Settlement | Stablecoins |
|---|---|---|---|
 Ethereum | ~$2-10 | ~15 sec |   |
 Base | ~$0.05 | ~2 sec | |
 Polygon | ~$0.01 | ~2 sec | |
 Arbitrum | ~$0.10 | ~2 sec | |
USDC on Base vs Ethereum, Polygon, and Arbitrum
| Chain | Gas per tx | Settlement | Native USDC only? | Merchant edge |
|---|---|---|---|---|
| Base | ~$0.05 | ~2 sec | Yes (no USDC.e on Base) | 100M+ Coinbase users can withdraw USDC to Base in a tap |
| Ethereum | ~$2-10 | ~15 sec | Yes | Deepest liquidity, strongest settlement guarantees for large payments |
| Polygon | ~$0.01 | ~2 sec | Native + bridged USDC.e (PYMSTR takes native only) | Cheapest gas overall, common for high-volume small tx |
| Arbitrum | ~$0.10 | ~2 sec | Native + bridged USDC.e (PYMSTR takes native only) | Deep DeFi liquidity, many active USDC holders park stablecoins here |
USDC on PYMSTR.
Ultra-Low Fees
Gas fees of ~$0.05 per transaction make Base ideal for any transaction size, including micro-payments.
Coinbase Ecosystem
Base is built by Coinbase. Users with Coinbase wallets can bridge to Base seamlessly.
2-Second Confirmations
Transactions confirm in about 2 seconds, faster than tapping a credit card.
Native USDC
Circle issues USDC natively on Base, no bridging required, no wrapped tokens.
Short answers. No jargon.
USDC questions.
Base is built by Coinbase, and Coinbase's 100M+ verified users can withdraw USDC directly to Base in a couple of taps, with no bridge and no external wallet. The hardest part of stablecoin checkout is usually getting the customer funded on the right chain; for a US-leaning retail audience, Base removes that step because the on-ramp is already in the Coinbase app they have.
Start accepting USDC.
Non-custodial. Stable-in, stable-out. Funds settle directly to your wallet on-chain. Live in minutes, not months.