> ## Documentation Index
> Fetch the complete documentation index at: https://docs.windrose.market/llms.txt
> Use this file to discover all available pages before exploring further.

# Networks

> The chains Windrose runs on, with chain ids, gas tokens, dollars, explorers, faucets and RPC endpoints.

<Frame className="wr-art">
  <img src="https://mintcdn.com/windrose/G2X0jK9uSBPQAS-b/images/art/networks.webp?fit=max&auto=format&n=G2X0jK9uSBPQAS-b&q=85&s=7a2bbca6390c0f11d08c33737d496530" alt="Four stone discs linked by thin bent wooden loops, with a paper lantern on one" width="1600" height="686" data-path="images/art/networks.webp" />
</Frame>

Windrose is chain-independent. The same contracts, keeper and indexer run on every network below, and the app's network switcher lets you move between them. What changes per chain is the gas token, the dollar that launches settle in, and which oracle adapters are available.

## Chains

| Network           | Chain id | Status                           | Gas  | Dollar                               | Explorer                                                                             | Faucet                                                                                   |
| ----------------- | -------- | -------------------------------- | ---- | ------------------------------------ | ------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------- |
| Robinhood Chain   | 4663     | Live, default on the public site | ETH  | USDG (Paxos), 6 decimals             | [robinhoodchain.blockscout.com](https://robinhoodchain.blockscout.com)               | none                                                                                     |
| Robinhood testnet | 46630    | Testnet                          | ETH  | Test USDG, mintable in the app       | [explorer.testnet.chain.robinhood.com](https://explorer.testnet.chain.robinhood.com) | [faucet.quicknode.com/robinhood/testnet](https://faucet.quicknode.com/robinhood/testnet) |
| Arc testnet       | 5042002  | Testnet                          | USDC | USDC, 6 decimals (also EURC for EUR) | [explorer.testnet.arc.io](https://explorer.testnet.arc.io)                           | [faucet.circle.com](https://faucet.circle.com)                                           |
| Arc               | 5042     | Soon                             | USDC | USDC, 6 decimals                     | [explorer.arc.io](https://explorer.arc.io)                                           | none                                                                                     |

Public RPC endpoints, for wallets and scripts:

| Network           | RPC                                       |
| ----------------- | ----------------------------------------- |
| Robinhood Chain   | `https://rpc.mainnet.chain.robinhood.com` |
| Robinhood testnet | `https://rpc.testnet.chain.robinhood.com` |
| Arc testnet       | `https://rpc.testnet.arc.io`              |
| Arc               | `https://rpc.mainnet.arc.io`              |

Contract addresses for each deployment are on the [Addresses](/protocol/addresses) page.

## Things that differ per chain

**Gas on Arc is USDC.** The native balance your wallet shows is the 18-decimal view of the same 6-decimal USDC token that launches settle in. Arc enforces a 20 gwei minimum base fee; the app pins its fee parameters above that floor, and transactions sent below it are silently dropped. The note under every transaction button reads "Gas is paid in USDC (20 gwei minimum base fee)".

**Gas on Robinhood Chain is ETH.** Base fees are a fraction of a gwei. The dollar there is USDG, issued by Paxos, so the app labels amounts in USDG wherever it would say USDC on Arc.

**Test dollars.** Robinhood testnet has no real dollar, so the deployment includes a mintable mock USDG. Anyone can press **Get test USDG** in the app to receive 1,000 units. Arc testnet uses Circle's real testnet USDC from the Circle faucet, which also covers gas.

**Oracles.** Robinhood Chain has no on-chain FX feeds, so the keeper oracle is the only price source there. Arc testnet also has a Pyth adapter deployed. See [Oracles](/concepts/oracles).

**EUR.** EURC is registered on Arc testnet, so EUR launches there settle in a real stablecoin. On Robinhood Chain EUR is not registered; the bridged EURC there has a tiny supply and is left out.

## Deep links

Every link the app produces carries the selected network as `?chain=<id>`, for example `https://windrose.market/t/0x...?chain=4663`. Opening such a link selects that network before loading the page, so a token page shared from a testnet opens on that testnet. The choice is remembered in the browser; the top-bar switcher changes it at any time.

A mainnet build of the app hides testnets from the switcher. The operator can list them again with an environment flag; see [Testnets](/guide/testnets).

<Note>
  Testnet tokens, currencies and balances have no value. They exist so you can try every flow, including graduation and backing a vault, with nothing at stake.
</Note>

## Naming

Robinhood Chain's terms of use do not allow "Robinhood" in product or token names. Windrose follows this: the product is Windrose, the currencies are Windrose currencies, and "Built on Robinhood Chain" is the only way the chain is named. Do not put "Robinhood" in the name or symbol of a launch.