Exchange in 3 steps
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Choose how much OP to send and enter your USD Coin address on ERC-20 on Polygon.
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Hit Exchange to open your order page with the live rate and deposit details.
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Transfer OP to the address on your order — after confirmations, USDC is sent to your wallet automatically.
What do you need to know?
- Optimism confirmations are usually fast — often within a minute.
- Send OP on Optimism mainnet only — not Ethereum, Base, or Arbitrum unless your order says otherwise.
- Use an Optimism-compatible wallet and address (0x…). Leave enough ETH on Optimism for gas if sending ERC-20 tokens.
- USDC not visible yet? Wait a few minutes, resync your wallet, then contact support with your order ID if the payout tx is already listed.
Optimism — Ethereum L2 with low fees
OP is the governance token of Optimism — an Ethereum rollup with fast, low-cost transfers and deep Superchain liquidity.
OP on Optimism mainnet
Use an Optimism wallet for deposits. L1 Ethereum or other L2 sends may not be credited.
Leave enough ETH on Optimism for gas when moving OP or other tokens.
USD Coin on Polygon
Always match USDC on ERC-20 on Polygon when you send or receive — wrong-network transfers may not be credited.
Receiving USDC
Your wallet must be on ERC-20 on Polygon.
Allow a few minutes after the order shows sent before opening support.
Before you swap
Avoid wrong-network deposits and address format mistakes — read these guides first.
Coin swap hubs
More no-KYC swap pairs and guides for each asset.
Frequently asked questions
Do I need KYC to swap OP to USDC?
No. SendSwap is a non-custodial instant exchange — no account, no ID checks, and no KYC for Optimism to USD Coin swaps.
How long does OP to USDC take?
Most swaps finish in 1–5 minutes. Timing depends on Optimism mainnet and ERC-20 on Polygon confirmations and current network load.
Is OP to USDC non-custodial?
Yes. You send OP from your wallet and receive USDC directly to the address you provide — SendSwap never holds your keys.
What if I send OP on the wrong network?
Always match the network on your order page (Optimism mainnet for deposits). Wrong-network sends may not be credited — read our swap safety guides before you send.