> For the complete documentation index, see [llms.txt](https://docs.rome.builders/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rome.builders/networks/hadrian.md).

# Hadrian (testnet)

Rome Hadrian — the public testnet chain (chain ID 200010).

Hadrian is Rome's public testnet chain and the canonical benchmark chain — the reference apps (Uniswap V3/V4, Compound, Aave) are validated here first. It's an EVM chain executing inside a Solana program and settling on Solana Devnet.

## Network details

| Field            | Value                                                                                 |
| ---------------- | ------------------------------------------------------------------------------------- |
| Chain ID         | `200010`                                                                              |
| RPC URL          | `https://hadrian.testnet.romeprotocol.xyz/`                                           |
| WebSocket        | `wss://hadrian.testnet.romeprotocol.xyz/`                                             |
| Explorer         | [via-hadrian.testnet.romeprotocol.xyz](https://via-hadrian.testnet.romeprotocol.xyz/) |
| Gas token        | USDC (18 decimals on the EVM side)                                                    |
| Solana USDC mint | `4zMMC9srt5Ri5X14GAgXhaHii3GnPAEERYPJgZJDncDU` (Circle's devnet USDC, 6 decimals)     |
| Rome program ID  | `RPTWwELXAY4KC9ZPHhaxp7Sq1hHtU3HNEgLbSegCcWf`                                         |

## Add to MetaMask

Enter the values above manually (Settings → Networks → Add network).

## Fund a wallet

Gas is USDC, so you need USDC on Hadrian. There is no Rome faucet.

1. Get test USDC. From a Solana wallet, take Solana Devnet USDC (mint above) from [Circle's faucet](https://faucet.circle.com/) and a little devnet SOL for Solana fees from the [Solana faucet](https://faucet.solana.com/), with your wallet set to Devnet. From an EVM testnet such as Ethereum Sepolia, mint test USDC from the same Circle faucet. [Faucets](/resources/faucets.md) lists every source.
2. Bring it in with the [Rome Bridge](/apps-on-rome/bridge-api.md) (choose Hadrian as the destination). A bridged USDC deposit lands as gas.

If a Solana-side transaction fails with an "insufficient SOL" warning despite a funded wallet, set your Solana wallet to Testnet Mode / Devnet (see the [FAQ](/resources/faq.md)).

## Contracts

Deployed contract addresses for Hadrian live in the [Rome registry](https://github.com/rome-protocol/rome-registry/tree/main/chains/200010-hadrian) and are summarized on the [Contract Addresses](/reference/contract-addresses.md) page.


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