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Arc is EVM-compatible—it supports the same bytecode, RPC methods, and tooling as Ethereum. Three key differences drive most integration work:
  • USDC as gas—fees are paid in USDC, not a volatile native token. This affects gas estimation, fee display, and balance APIs.
  • Deterministic finality—transactions finalize in under one second with no risk of reorganization. A single confirmation is sufficient.
  • Dual USDC interface—native balance uses 18 decimals while the ERC-20 interface uses 6 decimals. Both share the same underlying balance.
See EVM compatibility for a full list of differences from Ethereum.

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Exchanges

Integrate Arc deposits, withdrawals, and USDC liquidity management into your exchange.

Exchange integration

Overview of deposit, withdrawal, and bridging workflows for exchanges.

Detect deposits

Subscribe to blocks and detect incoming USDC transfers with one-confirmation finality.

Process withdrawals

Build, sign, and broadcast withdrawal transactions with USDC gas.

Bridge USDC (CCTP)

Move USDC liquidity to and from Arc using Cross-Chain Transfer Protocol.

Custody providers

Configure Fireblocks, BitGo, SAFE, and other custody platforms for Arc.

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On/off-ramps

Add Arc as a supported network in your fiat-to-crypto ramp service.

On/off-ramp integration

Chain registration, deposit detection, withdrawal processing, and UI display for ramp providers.

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Wallets

Add Arc as a supported network in your wallet application.

Wallet integration

Chain configuration, balance display, transaction history, and fee handling for wallet providers.

Transaction lifecycle

Arc’s two-state transaction model—pending or final, with no intermediate confirmation states.

Fee display

Fetch, estimate, and display transaction fees in USDC.

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Infrastructure

Add Arc support to node services, data indexers, oracle networks, block explorers, and compliance tools.

Infrastructure integration

Key differences from standard EVM chains and chain metadata for infrastructure providers.

Index events

Unified transfer events, no-reorg indexing, and block streaming guidance.

Bridges

Finality configuration, CCTP routing, and relay infrastructure for bridge protocols.

Compliance

Blocklist enforcement, Memo contract monitoring, and compliance tool integrations.

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Essentials

Connect to Arc

RPC endpoints, chain ID, WebSocket URLs, and explorer links.

Deploy on Arc

Deploy, test, and interact with a Solidity smart contract on Arc.

EVM compatibility

Full EVM differences table, dual USDC interface, and integration pitfalls.

Run a node

Operate your own Arc node for independent verification or direct RPC access.