Chainstack introduces Arc testnet support

We’re excited to announce that Chainstack now supports Arc — Circle’s Layer 1 blockchain purpose-built for stablecoin finance. Starting today, you can deploy production-ready Arc testnet nodes on Chainstack in under two minutes.

Why build on Arc?

Arc is an open, EVM-compatible Layer 1 built by Circle — the issuer of USDC — and designed from line one for stablecoin-native finance, tokenized assets, and institutional-grade financial coordination. Its public testnet went live in October 2025 with 100+ institutional participants including BlackRock, Visa, HSBC, Goldman Sachs, and Mastercard, ahead of mainnet beta in 2026.

• USDC as native gas: Fees are dollar-denominated and predictable — no volatile native token to hedge or budget around. This alone makes Arc uniquely suited for payments, treasury, and fintech workloads where cost stability matters more than speculation.
• Purpose-built for stablecoin finance: Arc narrows its design scope to payments, settlement, FX, and tokenized assets rather than chasing every general-purpose use case. A built-in FX engine with 24/7 PvP onchain settlement targets institutional flows that no general-purpose L1 handles natively.
• Instant finality: Sub-second deterministic finality powered by the Malachite consensus engine — the settlement guarantees enterprise finance actually needs.
• Full EVM compatibility: Solidity contracts, ethers.js, viem, Foundry, Hardhat — everything you already use for Ethereum works on Arc with a config change. No new toolchain to learn, no ecosystem cold-start.
• Circle’s full stack, natively integrated: USDC, EURC, CCTP, and Gateway are first-class citizens on Arc, keeping stablecoin liquidity unified across Ethereum, Solana, and every other chain Circle already supports.

For developers, Arc testnet is the on-ramp to what may become the settlement hub for onchain finance — with the institutional backing to make that a real possibility rather than a pitch deck.

Build better with Arc on Chainstack

Running Arc testnet on Chainstack gives you reliable access and predictable performance for any workload — from stablecoin payment integrations and FX applications to RWA tooling and onchain analytics. Chainstack provides:

• Global Nodes — geo-balanced RPC endpoints for scalable, low-latency access
• Dedicated Nodes — isolated resources across all Chainstack locations (Ashburn, Frankfurt, London, Los Angeles, New York, Tokyo, Singapore, Dallas) for teams that need single-tenant infra in a specific region
• Full and Archive nodes — recent state or full history from genesis, matched to your workload
• Debug and trace on archive — debug namespace methods for transaction replay,
  call tracing, and smart-contract debugging.
• Standard Ethereum JSON-RPC compatibility — HTTPS and WebSocket endpoints that work
  with any EVM toolchain you already have

How to get started with Arc on Chainstack

1. Log in to the Chainstack console (or create an account)
2. Create a new project
3. Select Arc as your blockchain protocol
4. Choose Testnet, and pick Global for shared geo-balanced access or Dedicated for isolated resources
5. Deploy the node
6. Open Access and credentials and copy your HTTPS and WebSocket endpoints
7. Get testnet USDC and EURC from the official Circle faucet to start transacting on Arc

For deeper reference:

• Arc methods
• Debug and trace APIs

Bringing it all together

With support for Arc testnet, Chainstack extends its infrastructure coverage into the emerging stablecoin-finance stack — a category that’s quickly becoming one of the most institutionally-backed narratives in Web3. Whether you’re building payment rails, FX applications, tokenized asset platforms, or any product that touches Arc, Chainstack provides the low-latency, production-grade RPC infrastructure to scale with confidence — from the first testnet call today to mainnet beta in 2026.

Power-boost your project on Chainstack

• Discover how you can save thousands in infra costs every month with our unbeatable pricing on the most complete Web3 development platform.
• Input your workload and see how affordable Chainstack is compared to other RPC providers.
• Connect to Ethereum, Solana, BNB Smart Chain, Polygon, Arbitrum, Base, Hyperliquid, Robinhood Chain, Arc, Tempo, MegaETH, Monad, Plasma, Avalanche, Optimism, Aptos, Cronos, Gnosis Chain, Moonbeam, Celo, Aurora, TON, Ronin, and Bitcoin mainnet or testnets through an interface designed to help you get the job done.
• Fast access to blockchain archive data and gRPC streaming on Solana.
• To learn more about Chainstack, visit our Developer Portal or join our Telegram group. 
• Connect your AI agent to Chainstack in seconds using Chainstack MCP — give Claude, Cursor, Codex, Gemini, and Windsurf live access to blockchain data, node management, and docs.
• Are you in need of testnet tokens? Request some from our faucets. Sepolia faucet, Base Sepolia faucet, Solana devnet faucet, Hoodi faucet, BNB faucet, zkSync faucet, Robinhood Chain faucet, Hyperliquid faucet, Monad faucet, Amoy faucet, Plasma faucet, TON faucet.

Have you already explored what you can achieve with Chainstack? Get started for free today.