// arc ecosystem

Arc infrastructure
from Supanode.

Arc from Supanode: JSON-RPC and WebSocket against the Circle Layer 1 where gas is paid in USDC, a SQL indexer over decoded history, and dedicated single-tenant nodes.

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01.NETWORK AT A GLANCE// Arc · public facts
Gas token
USDC
Fees priced in the unit you move.
Block time
~0.5 s
Deterministic finality, no reorgs.
Chain ID
5042
Mainnet EVM identifier.
as of 2026-09 · sources: circle.com · chainstack.com
Arc · spec sheetLayer 1 · EVM · USDC gas
Type
Layer 1 for stablecoin finance, built by Circle
Chain ID
5042 mainnet · 5042002 testnet
Gas token
USDC - 18 decimals as native gas, 6 as ERC-20
Execution
Reth - EVM-compatible
Consensus
Malachite BFT, ~0.5 s blocks, deterministic finality
Mempool
Not publicly observable
02.SERVICES// 3 on arc
03.FAQ// Supanode on arc
What can I run on Arc with Supanode?

Standard Ethereum JSON-RPC and eth_subscribe WebSocket, a ClickHouse SQL indexer over decoded chain history, and dedicated single-tenant nodes. There is no native gRPC feed on Arc.

Why does Arc use USDC for gas?

Because it was built for payments rather than for speculation. When the fee and the payment are the same unit, a business can quote a cost without holding a second volatile asset to pay for the transfer. That is the whole design argument for the chain.

How do I get access to Arc on Supanode?

Provisioning is hands-on over Telegram. Message Supanode and an engineer provisions your endpoint and token, with archive or tracing if you need them. A free trial of up to 24 hours, no card, is available before committing.

How much does Arc RPC cost?

There is no price yet - shared Arc RPC is in build. A dedicated Arc node we deploy to order, usually within 48 hours, quoted per deployment. Billing is crypto-only and prepaid, like every other Supanode subscription.

Provisioning is hands-on.

Access is set up over Telegram with an engineer — endpoint, token, tuning. Tell us your Arc workload and we'll size it.