Arc connectivity with Alchemy, using the same EVM workflow you already ship with.
Tim Baker
Most teams don't "choose an RPC provider" as a strategic decision. It's plumbing. The faster and more familiar that plumbing is, the faster you ship. Alchemy has integrated with Arc, meaning builders can plug Arc Testnet into the same onchain workflow they already use across EVM networks.
Alchemy's Chain Resource Directory now includes Arc Testnet (Chain ID 5042002) with the basics in one place: official Arc links, the testnet block explorer, and Alchemy-provided RPC + WebSocket endpoints (available after you generate an Alchemy key). Translation: fewer tabs open, fewer config mistakes, fewer "why is my wallet on the wrong chain?" debugging sessions.
What Arc builders get out of this:
Treat Arc like any other EVM network in your config (Foundry, Hardhat, Ethers, Viem).
Flip on WebSockets when you want real-time behavior (events, confirmations, app state) instead of polling.
Use Alchemy's platform ergonomics - keys, quotas, operational controls - so you're not reinventing infra hygiene while you're iterating.
Forking an existing EVM app to Arc:
Add Arc as a supported network (chain ID + RPC/WSS).
Redeploy contracts on Arc (new addresses), then update your address map/config.
Point your indexers/relayers to Arc endpoints and resync.
Run your existing test suite against Arc Testnet and fix chain-specific assumptions.
Other build ideas this unlocks on Arc:
Add Arc as a second execution venue: keep your app’s architecture the same, but route specific flows to Arc (ex: stablecoin settlement, payouts, treasury moves) and use WSS to drive state machines from onchain events.
Build cross-chain deposit/settlement UX: stand up Arc watchers quickly (WSS logs + receipts) so your app can recognize inbound mints/transfers on Arc while your existing stack keeps watching the source chain; pair this with Circle cross-chain tooling (Such as BridgeKit) for moving USDC without custom bridge plumbing.
Spin up clean environments for CI/staging: use separate Alchemy keys/endpoints per environment to deploy, test, and tear down repeatedly without maintaining node infrastructure; makes “run the whole stack on Arc testnet” a repeatable pipeline step, not a one-off.
Important nuance: this improves connectivity and porting speed. It does not migrate onchain state or liquidity. Those still require an explicit transition plan.
If you plan to use Alchemy in your apps workflows, tell us about it in the comments or in the forum<link to the forum>! We would love to know how we can support you in your developer journey.
