# Arc overview

> Arc on Supanode — a dedicated single-tenant node on Circle's stablecoin Layer 1 today, with shared RPC, WebSocket and a decoded-history indexer in build.

Arc is **Circle's Layer 1 for stablecoin finance**: EVM-compatible, with gas paid in USDC rather than a separate volatile token. Your existing Ethereum tooling works - what changes is the unit the fees come out of.

<Note>
**One product today: the dedicated node.** We deploy it to order, usually within 48 hours. Shared RPC with WebSocket and the decoded-history indexer are in build.
</Note>

## What you get today

- **Dedicated node** - full or archive, private RPC and WebSocket, no rate limits, in the region and on the hardware you pick. Quoted per deployment.

## What is in build

- **RPC & WebSocket** - a shared tier with published caps.
- **Historical Data** - decoded Arc history as ClickHouse SQL. Stablecoin flow is the obvious first dataset on a chain built for it.

## The chain itself

| | |
|---|---|
| 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 |

Sources: [Circle](https://www.circle.com/arc), [Chainstack](https://chainstack.com/what-is-arc/).

<Warning>
**The mempool is not publicly observable.** Strategies that depend on watching pending transactions elsewhere do not port to Arc as they are - plan around confirmed state and the ~0.5 s deterministic finality instead.
</Warning>

## Where to next

<CardGroup cols={2}>
  <Card title="Dedicated" icon="server" href="https://supanode.xyz/docs/arc/dedicated">
    Your own Arc node - full or archive, private RPC + WS, no rate limits.
  </Card>
  <Card title="Pricing" icon="tag" href="https://supanode.xyz/docs/arc/pricing">
    How the node is quoted, and what carries no price yet.
  </Card>
</CardGroup>