# Arc Testnet RPC and network details

Source: https://www.alchemy.com/rpc/arc-testnet

Arc is Circle’s open L1 blockchain, purpose-built for stablecoin finance. With USDC as native gas, fees are low, predictable, and dollar-denominated. Arc is now live on public testnet with involvement from 100+ institutions, including BlackRock, Visa, and HSBC.

## Network details

- Network: Testnet
- Chain ID: 5042002
- Environment: Testnet
- Category: L1
- Gas token: USDC

## Endpoints

- Alchemy RPC: https://arc-testnet.g.alchemy.com/v2/API_KEY
- Alchemy WebSocket: wss://arc-testnet.g.alchemy.com/v2/API_KEY

Replace API_KEY with a key from https://dashboard.alchemy.com/signup.

## Alchemy product support

Supported on Arc Testnet: RPC API, Debug API, Bundler API, Websockets, Gas Manager.

Not currently supported: Transaction receipts API, Block Timestamp API, User OP Simulation API, Prices API, Trace API, Token API, NFT API, gRPC, Webhooks, Transfers API.

## Build on Alchemy

Alchemy offers enterprise-grade Arc testnet RPC endpoints, so you reliably connect to the network at any scale. With block event streams via websockets and a Debug API for understanding transactions, we offer a range of tools to make it easy to build on Arc.

## Links

- Alchemy docs: https://www.alchemy.com/docs/chains#arc-apis
- Official docs: https://docs.arc.network
- Website: https://www.arc.network/
- Block explorer: https://testnet.arcscan.app/