Definition · Base USDC

Base USDC is native, Circle-issued USD Coin on the Base network.

If you hold USDC on Base, you hold the token Circle issues natively on that network. That distinction matters: native Base USDC is what USDCtoFiat sells, and it is not the same as a bridged or wrapped representation from another chain.

Sell Base USDC Sell USDC on Base

What native Base USDC is

USD Coin (USDC) is a fully-reserved dollar stablecoin issued by Circle. On Base, Circle mints it natively, directly on Base rather than locked on another chain and represented by a bridge. That native issuance is why exchanges, wallets, and protocols treat Base USDC as canonical dollars onchain.

USDCtoFiat reads and settles this token directly. When you create a sell deposit, the contract custodies native Base USDC at the Circle address until a buyer's payment is proven or you withdraw.

Native vs bridged USDC

Type	What it is	Works with USDCtoFiat
Native Base USDC	Circle-issued USDC minted directly on Base	Yes, this is the token the sell flow uses
Bridged USDC (USDC.e)	USDC from another chain wrapped by a bridge	Move it to native Base USDC first
USDC on another chain	Ethereum, Arbitrum, Optimism, Polygon, Solana, etc.	Bridge to Base before creating a deposit

Why USDCtoFiat settles native Base USDC

Base is a low-fee Ethereum Layer 2 built by Coinbase on the OP Stack. Settling on Base keeps gas cheap for approvals, deposits, and releases while inheriting Ethereum security. Using the native Circle token, rather than a bridged wrapper, avoids bridge-representation risk and keeps the deposit denominated in the canonical dollar asset buyers expect.

How to get USDC onto Base

01If your USDC is already native on Base, you are ready to create a sell deposit.
02If it is on Ethereum, Arbitrum, Optimism, or Polygon, bridge it to Base first.
03The app's Fund tab routes USDC to Base via Circle CCTP across 18+ chains.
04Once native Base USDC lands in your wallet, open the sell flow and create a deposit.

Onchain reference

The token, the escrow, and the release path are all public on Base.

You can verify the exact contracts USDCtoFiat reads and settles against on any Base block explorer.

USDCtoFiat does not issue USDC. Circle issues and redeems USDC; USDCtoFiat coordinates a peer-to-peer sale of it on Base.

USDC: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913Circle, native on Base
Network: Basechain ID 8453
EscrowV2: 0x777777779d229cdF3110e9de47943791c26300Efholds seller USDC
Orchestrator: 0x888888359E981B5225CA48fbCdCeff702FC3b888buyer intents and release

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Common questions

What is the Base USDC contract address?

Native Circle USDC on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on chain ID 8453. This is the token USDCtoFiat sell deposits use.

Is Base USDC the same as USDC on Ethereum?

It is the same Circle-issued dollar stablecoin, but a different token contract on a different network. USDC on Ethereum has to be bridged to Base before it can be used in a USDCtoFiat sell deposit.

What is the difference between native and bridged USDC?

Native USDC is minted directly by Circle on a chain. Bridged USDC (sometimes shown as USDC.e) is locked on one chain and represented by a bridge on another. USDCtoFiat uses native Base USDC; convert bridged balances to native before selling.

Why does USDCtoFiat only sell USDC on Base?

The seller flow, escrow, and verification contracts are deployed on Base. Settling on a single low-fee network keeps gas cheap and the contract path simple to audit. Use the Fund tab to move USDC to Base first.

How fast does a deposit fill?

Fill speed depends on buyer demand for your payment method, currency, rate, and order size. Check live liquidity for an eligible route before publishing; technical support does not override a provider's account rules. You can withdraw unfilled deposits whenever you want.