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What are the requirements for using the KEVM testnet?

Please refer to Testnet Skill Set and Requirements for more information.

How do I get test tokens to use with the KEVM testnet?

Please refer to faucet and Testnet Tokens for more information.

How much does it cost to use the KEVM testnet?

The testnet uses test tokens rather than real currency to test your contracts. Test tokens are provided using a faucet component which you can use for your testing purposes. Please refer to faucet for more information.

I have sent more than one transaction in quick succession but only one transaction was processed, why is that?

The behaviour of the testnet wallet, Mallet, specifies the transaction nonce based on the current account value in the blockchain. If you have sent transactions in quick succession, it is possible that some of the later transactions will not be processed correctly to the blockchain. This is caused by the way in which Mallet gets the current account nonce from Mantis. If the first transaction that is sent is not mined before another is sent, Mallet will use the same nonce for the second transaction, making it an invalid one. To avoid this problem, a short interval must elapse before the next block is mined so that a new nonce can be processed. For the KEVM testnet the interval is about 15 seconds.

Why am I running out of test tokens when trying to deploy a large contract?

If your smart contract is substantial you might need to access the faucet a couple of times to get enough tokens. Just repeat the process three or four times to give you enough test tokens for testing very large and complex contracts.

Why can I not deploy my smart contract to the testnet using MyEtherWallet (MEW)?

The testnet works with Solidity and IELE. Certain wallets such as MEW are not supported within this system. If you would like to contribute to providing support for such wallets we would love to hear from you.