XPayr Β· Built on Arc Network

Arc Unified Balance

Unified Balance combines deposited USDC from supported blockchains into one chain-agnostic balance that can be spent on a destination chain. It reduces the need for a user to manually coordinate each bridge before a payment.

Verified on Arc Mainnet Technical status verified September 2026
ARC
Direct answer

Unified Balance combines deposited USDC from supported blockchains into one chain-agnostic balance that can be spent on a destination chain. It reduces the need for a user to manually coordinate each bridge before a payment.

How XPayr applies it

XPayr records deposit and spend requests separately, binds the intended destination and fee quote, and waits for App Kit events plus destination-chain evidence before marking the operation complete.

Verified on Arc Mainnet

Yes. Arc Network has officially launched its Mainnet (Chain ID: 5042). XPayr supports live non-custodial checkout, verified routes, canonical Circle CCTP, Unified Balance and explorer reconciliation on Arc Mainnet alongside continued testnet access.

From merchant intent to a verified Arc transaction

1

Understand the primitive

Start with the exact Arc Network capability, supported asset and execution boundary instead of a generic blockchain promise.

2

Plan the route

Choose checkout, send, bridge, swap, Unified Balance, memo, batch or agent settlement and review its fee model.

3

Sign from the wallet

The merchant or payer wallet signs the operation. XPayr does not treat a browser response as settlement proof.

4

Verify and reconcile

XPayr checks chain, token, amount, recipient and transaction evidence before updating payment and fee ledgers.

Arc Network questions answered clearly

Arc Unified Balance: How XPayr applies it

XPayr records deposit and spend requests separately, binds the intended destination and fee quote, and waits for App Kit events plus destination-chain evidence before marking the operation complete.

Is this available on Arc Mainnet through XPayr?

Yes. Arc Network has officially launched its Mainnet (Chain ID: 5042). XPayr supports live non-custodial checkout, verified routes, canonical Circle CCTP, Unified Balance and explorer reconciliation on Arc Mainnet alongside continued testnet access.

Does XPayr custody funds or hide the network fee?

No. Wallets sign transactions, chain fees remain visible and XPayr records its operation fee separately. Standard successful checkout uses the configured XPayr gateway fee; advanced App Kit operations use their published fee quote.

Continue through XPayr tools for Arc

Primary references

Move from Arc research to a working XPayr payment flow.

Open a public XPayr planner, then create a merchant account to test checkout and wallet-signed operations on Arc Mainnet and Testnet.