For over a decade, Kraken has provided a safe way for users to engage with the world of crypto, helping to usher in a new era of finance. Today, that mission takes a step onchain with Ink, an OP Stack Layer 2 (L2) blockchain providing the security and safety for crypto enthusiasts to engage with the world of DeFi.
And developers, we want you to be part of it.
Overview of the Ink testnet
This invitation begins with the Ink testnet.
A testnet is an instance of the mainnet, used for testing and research purposes. Here, developers can deploy new products, look for bugs and hunt for vulnerabilities without real assets at stake.
The Ink testnet runs on Sepolia, an Ethereum proof-of-stake test network that mimics the functionality of the mainnet. Sepolia is the recommended testnet for Ethereum developers and is backed by the Ethereum Foundation.
Our testnet simulates the environment of the future Ink mainnet. It has a block explorer, ready-to-roll RPC endpoints, an easy-to-use bridge so you can bridge your Sepolia ETH to Ink, and a lot of other typical infrastructure you’ll find on mainnet.
We invite you to try it. Here are some resources to get started.
Resources
How to view the Ink testnet in Kraken Wallet
Kraken Wallet natively supports unified multi-chain access to all networks that have been enabled. The Ink testnet is fully supported in the latest version of Kraken Wallet.
To add the Ink testnet ETH token to your Kraken Wallet list of assets, complete the following steps:
- Update Kraken Wallet to the latest version in your app store
- Log in to your Kraken Wallet, navigate to Assets, and tap Manage
- Locate Ethereum – Sepolia Testnet in the drop down menu, or in the search bar, type Eth and select Ethereum – Sepolia Testnet (look for the Ink logo to make sure you select the right one).
- Return to the home screen to find Ethereum – Sepolia Testnet on the Assets list
The Ink testnet ETH token has now been added to your list of assets in Kraken Wallet. You do not need to switch any settings to use the network.
How to add the Ink testnet to MetaMask
To add the Ink testnet to your MetaMask wallet, complete the following steps:
- Log in to your MetaMask wallet, navigate to Networks, and tap Add Network.
- Tap Custom Networks and add the following information:
- Network Name: Ink Sepolia
- RPC URL: https://rpc-gel-sepolia.inkonchain.com
- Chain ID: 763373
- Symbol: ETH
- Block Explorer URL: https://explorer-sepolia.inkonchain.com
- Tap Add
- A screen will pop up with the header Add custom network. Tap the solid blue button at the bottom that says Confirm.
- A screen will pop up with the header New network added.
The Ink testnet has now been added to your MetaMask wallet. You can switch to it as needed.
How to Bridge Sepolia ETH to Ink
To bridge Sepolia ETH to the Ink testnet, follow these steps:
- Get Sepolia ETH from one of the available public faucets.
- Send that Sepolia ETH to the L1StandardBridge contract address: 0xC0d337f71aD19a8f17a1b297cDb3a86c5EEf9Eec
Our Ink op-node will automatically pick up the L1 transactions and process them to the L2 state. Once the process is complete, you will see your Sepolia ETH on the Ink testnet.
Contract Addresses
L1 Testnet Contracts
L2 Testnet Contracts
Blockchain Explorer Address
Blockchain explorer URL: https://explorer-sepolia.inkonchain.com
Let’s Ink the future together
Testnets provide a valuable opportunity for interested developers to test their code, and Ink’s is no different. Inspired by Kraken’s commitment to security and innovation, Ink will strive to usher in the future of finance, one decentralized application at a time.
Follow us on X and Telegram for the latest updates and announcements, including the launch of our Discord server dedicated to onchain builders.
These materials are for general information purposes only and are not investment advice or a recommendation or solicitation to buy, sell, stake or hold any cryptoasset or to engage in any specific trading strategy. Kraken does not and will not work to increase or decrease the price of any particular cryptoasset it makes available. Some crypto products and markets are regulated and others are unregulated; regardless, Kraken may or may not be required to be registered or otherwise authorised to provide specific products and services in each market, and you may not be protected by government compensation and/or regulatory protection schemes. The unpredictable nature of the cryptoasset markets can lead to loss of funds. Tax may be payable on any return and/or on any increase in the value of your cryptoassets and you should seek independent advice on your taxation position. Geographic restrictions may apply. See Legal Disclosures for each jurisdiction here.
