How to generate a number of Solana addresses

Question

I would like to generate a number of Solana addresses and store them in a database. I plan to use them to display and receive payments. I don't need to verify (I only need to display a receiving address).

I tried a command line key generator - ssh-keygen -t ed25519 and then tried to import it into a Phantom wallet and got a "wrong format" error.

Answer 1

I'd suggest using web3.js for this:

import { Keypair } from '@solana/web3.js';

for (let i = 0; i < NUM_TO_GENERATE; i++){
    const kp = Keypair.generate();
    console.log(kp.secretKey);
    console.log(kp.publicKey.toBase58());
}

Answer 2

You can keep generating addresses with the Solana CLI's solana-keygen, same as the first keypair you created, ie:

$ solana-keygen new -o FILENAME.json --no-bip39-passphrase

Feel free to do that on a loop to create all the keypairs you want, ie:

for i in {0..3}
do
  solana-keygen new -o keypair${i}.json --no-bip39-passphrase
done

Answer 3

If you use JS/TS, you can also use the helpers library maintained by the Solana Foundation Dev Ecosystem team:

const keypairs = makeKeypairs(30);

keypairs will be an array of 30 keypairs.

Answer 4

Got this to work. Needed to change the config for each time through the loop

for i in {1..20}
do
    echo "keypriv # $i"
    solana-keygen new -o ~/pubAddressesForDB3/keypriv$i.json --no-bip39-passphrase
solana config set --keypair ~/pubAddressesForDB3/keypriv$i.json
    echo "keypub # $i"
    solana-keygen pubkey --outfile ~/pubAddressesForDB3/keypub$i.json
done

Answer 5

for batch solana wallet generation you can use our well made script – Solana Keys Generator. This script can easy generate thousands of solana accounts and store them in .csv file (publicKey,privateKey), also solana-keygen saves .json keys.