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

# Network configuration

> Robinhood Chain mainnet and testnet configuration used by Olanas.

## Supported application networks

<Tabs>
  <Tab title="Mainnet">
    | Setting         | Value                                     |
    | --------------- | ----------------------------------------- |
    | Name            | Robinhood Chain                           |
    | Chain ID        | `4663`                                    |
    | CAIP-2          | `eip155:4663`                             |
    | Native currency | ETH                                       |
    | Public RPC      | `https://rpc.mainnet.chain.robinhood.com` |
    | Explorer        | `https://robinhoodchain.blockscout.com`   |
  </Tab>

  <Tab title="Testnet">
    | Setting         | Value                                          |
    | --------------- | ---------------------------------------------- |
    | Name            | Robinhood Chain Testnet                        |
    | Chain ID        | `46630`                                        |
    | CAIP-2          | `eip155:46630`                                 |
    | Native currency | Testnet ETH                                    |
    | Public RPC      | `https://rpc.testnet.chain.robinhood.com`      |
    | Explorer        | `https://explorer.testnet.chain.robinhood.com` |
  </Tab>
</Tabs>

## Select a network

Set `ROBINHOOD_NETWORK` to `mainnet` or `testnet`. Network-scoped RPC and ERC-20 contract settings use the selected network name:

```dotenv theme={null}
ROBINHOOD_NETWORK=testnet
ROBINHOOD_TESTNET_RPC_URL=https://your-rpc.example
ROBINHOOD_TESTNET_USDC_CONTRACT_ADDRESS=0x...
```

Never configure a token contract until its address and decimals have been verified for that exact network.

## Isolation

Testnet uses `ROBINHOOD_TESTNET_DATA_DIR`, or `uploads-testnet` by default, so development records do not mix with mainnet data.