There are two options for assets transfer: they can be transferred from account to account or from account to address.
The address is the ripemd160 hash, which corresponds to a certain account.
To perform a transfer to account, it is necessary to send an operation transfer_to_address_operation.
To do so, you can use Wallet API transfer.
transfer 1.2.0 1.2.1 10 ECHO true
To do so, we use Wallet API generate_account_address.
generate_account_address nathan label true
To do so, we use Wallet API get_account_addresses.
get_account_addresses 1.2.26 0 10
To transfer from account to address, you need to send an operation transfer_to_address_operation.
To do so, we use Wallet API transfer_to_address.
transfer_to_address 1.2.26 f149bd2883b1179965bd6706092573be4d68fec8 10 ECHO true