Gully Chain Testnet
An Arbitrum Orbit L3 that settles to Arbitrum Sepolia. Chain ID 485590, gas paid in ETH. Everything here reads the chain live from your browser.
Live network
The chain, right now
Block height
Last block
Transactions
Gas price
Batches on Arbitrum Sepolia
Transactions per block
User transactions in each of the last 40 blocks. Hover a bar for details.
Gas used per block
Gas used by each of the last 40 blocks. Hover for details.
| Block | Age | Txs | ||
|---|---|---|---|---|
| Loading blocks… | ||||
Network
Endpoints and status
Add these to any EVM wallet or tool. The button at the top adds the network to MetaMask, Rabby and other browser wallets in one click.
| Network name | Gully Chain Testnet |
|---|---|
| Chain ID | 485590 (0x768d6) |
| RPC URL | https://testnet-rpc.gullychain.xyz |
| Currency | ETH (18 decimals) |
| Explorer | testnet-explorer.gullychain.xyz |
| Faucet | faucet.gullychain.xyz |
| Bridge | testnet-bridge.gullychain.xyz |
| Parent chain | Arbitrum Sepolia (421614) |
| Stack | Arbitrum Orbit, Nitro v3.12, rollup mode, ETH gas |
- RPCCheckingPublic JSON-RPC, rate limited, CORS on.
- BridgeLiveDeposits from Arbitrum Sepolia arrive in about a minute.
- ExplorerLiveBlocks, transactions, addresses and contract verification.
- Batch postingCheckingThe sequencer posts batches to Arbitrum Sepolia.
- Withdrawals to Arbitrum SepoliaRolling outNeed the validator to be staked before they can be confirmed.
- FaucetLivefaucet.gullychain.xyz: 0.001 ETH per address per day, straight on Gully Chain.
- Safe smart accountsRolling outEntryPoints and the Safe 4337 module are on chain; Safe core contracts follow.
- Sponsored gas (paymaster)NextERC-4337 bundler and paymaster.
- Uniswap v3, .gully namesNextAfter the Safe contracts.
Guides
Get testnet ETH, then build
Gully Chain uses ETH for gas. You bring it over from Arbitrum Sepolia through the bridge.
- Fastest: use the faucetThe Gully faucet sends 0.001 ETH straight to your address on Gully Chain, once a day. Enough for a few deploys. For more, bridge as below.
- Get Sepolia ETHUse a public Sepolia faucet, for example the Google Cloud Web3 faucet or a proof-of-work faucet. Testnet ETH is free and has no value.
- Move it to Arbitrum SepoliaOn bridge.arbitrum.io, bridge from Sepolia to Arbitrum Sepolia. It takes about 10 to 15 minutes. Some faucets pay on Arbitrum Sepolia directly.
- Bridge to Gully ChainOpen the Gully Bridge, connect your wallet and deposit. ETH arrives on Gully Chain in about a minute.
- DeployPoint your tools at the RPC below. Any EVM contract works, and Stylus lets you write contracts in Rust.
# deploy a contract forge create src/Counter.sol:Counter \ --rpc-url https://testnet-rpc.gullychain.xyz \ --account dev --broadcast # read the latest block cast block-number --rpc-url https://testnet-rpc.gullychain.xyz
// hardhat.config.ts
networks: {
gullyTestnet: {
url: "https://testnet-rpc.gullychain.xyz",
chainId: 485590,
accounts: [process.env.PRIVATE_KEY!],
},
},import { defineChain, createPublicClient, http } from "viem";
export const gullyTestnet = defineChain({
id: 485590,
name: "Gully Chain Testnet",
nativeCurrency: { name: "Ether", symbol: "ETH", decimals: 18 },
rpcUrls: { default: { http: ["https://testnet-rpc.gullychain.xyz"] } },
blockExplorers: { default: { name: "Gully Explorer", url: "https://testnet-explorer.gullychain.xyz" } },
testnet: true,
});
const client = createPublicClient({ chain: gullyTestnet, transport: http() });
console.log(await client.getBlockNumber());curl -s https://testnet-rpc.gullychain.xyz \
-H "content-type: application/json" \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'Contracts
Deployed addresses
Standard contracts sit at the same addresses as on Ethereum mainnet, so existing tooling finds them. Each address links to the explorer.
| Contract | Address |
|---|---|
| WETH9 | 0x26aCCCb2e98ca9e067E58668Aa3B101beF432754 |
| Permit2 | 0x000000000022D473030F116dDEE9F6B43aC78BA3 |
| EntryPoint v0.7 | 0x0000000071727De22E5E9d8BAf0edAc6f37da032 |
| EntryPoint v0.8 | 0x4337084D9E255Ff0702461CF8895CE9E3b5Ff108 |
| Safe4337Module 0.3.0 | 0x75cf11467937ce3F2f357CE24ffc3DBF8fD5c226 |
| SafeModuleSetup 0.3.0 | 0x2dd68b007B46fBe91B9A7c3EDa5A7a1063cB5b47 |
| P256 verifier (passkeys) | 0xc2b78104907F722DABAc4C69f826a522B2754De4 |
| CREATE2 factory (Arachnid) | 0x4e59b44847b379578588920cA78FbF26c0B4956C |
| ERC-2470 singleton factory | 0xce0042B868300000d44A59004Da54A005ffdcf9f |
| Zoltu deployer | 0x7A0D94F55792C434d74a40883C6ed8545E406D12 |
| ERC-1820 registry | 0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24 |
| Token bridge: gateway router | 0x32C680cA4c27A3566fE5Dfd4643fE420eE1039B7 |
| Token bridge: standard gateway | 0x5CbA5BFD52beA26Fb65c26Fa452f290cB8610fE2 |
| Token bridge: custom gateway | 0x27530E706c67F210753081508302d69ba1693A41 |
| Token bridge: WETH gateway | 0xB8BAAd59F553707534F546983912486562FA0Eb3 |
| Bridged WETH | 0x3292dE74305DF64dbe082c6834fa841353eB2415 |
| Multicall (token bridge) | 0xc0Dee8709648264495af14c65fEA2Ae7a728E01a |
| Contract | Address |
|---|---|
| Rollup | 0x85D80C06Fa5334E8Cd1C51F3F39D477E5dc35E0D |
| Inbox | 0x7B8499f1C058c9bdE2Bc9BdFEBE40364232C52B5 |
| Sequencer inbox | 0x483f77f692635d4D8a8147D0f732A016614Ce685 |
| Bridge | 0x2073106fd3fc844Bbde31f5Bf0BB91cf1e2d6C8A |
| Outbox | 0x976C651fe5E63E45C8C28449507F51548922f68c |
| Token bridge: gateway router | 0xfbd7503009AB4ee5A1f980a2fCDEE4C7BEB6b2B9 |
| Token bridge: standard gateway | 0x8E35E523bFd709d577A77F749c831cB045bCabd0 |
| Token bridge: custom gateway | 0xA90752f7057dc1BFe2677f1791c5084535A4E42a |
| Token bridge: WETH gateway | 0xEB602d8Fc5F5d87DA629201905bE51885165EC4f |
Not deployed yet: Multicall3 at 0xcA11…CA11, CreateX, and the Safe 1.4.1 singletons. They are on the way.
Notes
Good to know
Why does block height move in jumps?
Nitro chains make a block only when there is a transaction to include. A quiet testnet can go minutes without a new block. That is normal and not downtime.
Can I withdraw back to Arbitrum Sepolia?
Withdrawals can be started now, but they finish only after the validator confirms them on Arbitrum Sepolia. The validator is being staked. Until then, treat bridged ETH as one-way.
Will the testnet be reset?
It may be, as the chain moves toward mainnet. Do not keep anything on it you cannot redeploy.
Is there a mainnet?
Not yet. Mainnet will settle to Arbitrum One. Follow @Gully_Labs for timing.
Where do I get help?
Email [email protected] or reach Gully Labs on X.