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Documentation Index

Fetch the complete documentation index at: https://docs.arc.io/llms.txt

Use this file to discover all available pages before exploring further.

Arc is a purpose-built Layer-1 blockchain for stablecoin-native financial applications, with USDC as gas, sub-second deterministic finality, and full EVM compatibility. It supports payments, lending, FX, treasury management, and agentic commerce at scale. Beyond the network, Arc provides App Kit for crosschain payment workflows, AI tooling for agent-based development, and a growing ecosystem of infrastructure partners.

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Key features

Stablecoin native model

USDC is the native gas token. EURC and USYC are natively supported. No volatile token required.

Stable fee design

Transaction fees are denominated in USDC, so costs stay predictable regardless of market volatility.

Deterministic finality

Transactions finalize in under one second with no risk of chain reorganization.

EVM compatibility

Deploy existing Solidity contracts and use standard Ethereum tooling like Hardhat, Foundry, and Viem.

Opt-in privacy

Confidential transfers and selective disclosure for regulated use cases, available when you need them.

Post-quantum security

SLH-DSA-SHA2-128s wallet signatures protect accounts against future quantum threats.

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Stablecoins on Arc

Arc is designed from the ground up around stablecoins. USDC serves as the native gas token, EURC enables euro-denominated transfers, and USYC provides onchain yield. There is no volatile native token. For details on the dual-interface model, native representations, and supported assets, see stablecoin native model.

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Network architecture

Arc separates consensus from execution so each layer can optimize independently while maintaining full compatibility with the Ethereum ecosystem.
  • Consensus layer: Built on Malachite BFT, delivering sub-second finality and high throughput across a permissioned validator set.
  • Execution layer: Powered by Reth, a Rust Ethereum client that runs the EVM so Solidity contracts, development tools, and wallet infrastructure work without modification.
For a complete view of how the layers interact, see the system overview.

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Network details

PropertyValue
ConsensusMalachite BFT
Execution environmentEVM (Prague hard fork)
Gas tokenUSDC
Block time~0.48 s (testnet)
Chain ID5042002
FinalityDeterministic, sub-second
Validator participationPermissioned
Developer accessPermissionless
For RPC endpoints and connection details, see RPC endpoints. For deployed contract addresses, see contract addresses. For how Arc validators are selected and how the network is operated, see deployment model.

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Start building

Ready to build on Arc? Head to the Build section for quickstarts and tutorials covering smart contract deployment, crosschain bridging, App Kit workflows, and AI agent integration.