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codesoap 04eb1758ac Refactor code into ed25519.go for readability 2 years ago
LICENSE Let the node generate proof of work 2 years ago
address.go Introduce bigIntToBytes method to compact code 2 years ago
balance.go Rename RPCCall to RPC 2 years ago
block.go Refactor code into ed25519.go for readability 2 years ago
change.go Rename RPCCall to RPC 2 years ago
config.go Let the node generate proof of work 2 years ago
ed25519.go Refactor code into ed25519.go for readability 2 years ago
process.go Rename RPCCall to RPC 2 years ago
send.go Check amount with regexp before parsing 2 years ago
util.go Remove useless assignments 2 years ago

atto is a tiny Nano wallet, which focuses on ease of use through simplicity.

Disclaimer: I am no cryptographer and atto has not been audited. I cannot guarantee that atto is free of security compromising bugs.


I recommend building atto yourself, but you can also download precompiled binaries from the releases page. Building atto yourself works like this; go 1.15 or higher is required:

git clone ''
cd atto
go build
# The atto binary is now available at ./atto.
# You could also install to ~/go/bin/ by executing "go install".


$ # The new command generates a new seed.
$ atto new
$ # Store it in your password manager:
$ pass insert nano
Enter password for nano: D420296F5FEF486175FAA8F649DED00A5B0A096DB8D03972937542C51A7F296C
Retype password for nano: D420296F5FEF486175FAA8F649DED00A5B0A096DB8D03972937542C51A7F296C

$ # The address command shows the address for a seed and account index.
$ pass nano | atto address

$ # The balance command will receive pending funds automatically.
$ pass nano | atto balance
Creating receive block for 1.025 from nano_34ymtnmhwseiex4eqf7nnf5wcyg44kknuuen5wwurm18ma91msf6e1pqo8hx... done
Creating receive block for 0.100 from nano_39nd8eksw1ia6aokn96z4uthocke47hfsx9gr31othm1nrfwnzmmaeehiccq... done
1.337 NANO

$ # Choosing a representative is important for keeping the network
$ # decentralized.
$ pass nano | atto representative nano_1jr699mk1fi6mxy1y76fmuyf3dgms8s5pzcsge5cyt1az93x4n18uxjenx93
Creating change block... done

$ # Careful with the send subcommand: No confirmation is required!
$ pass nano | atto send 0.1 nano_11zdqnjpisos53uighoaw95satm4ptdruck7xujbjcs44pbkkbw1h3zomns5
Creating send block... done

$ atto -h
	atto n[ew]
	atto [-a ACCOUNT_INDEX] a[ddress]
	atto [-a ACCOUNT_INDEX] b[alance]
	atto [-a ACCOUNT_INDEX] r[epresentative] REPRESENTATIVE

The new subcommand generates a new seed, which can later be used with
the other subcommands.

The address, balance, representative and send subcommands will expect
a seed as as the first line of their standard input. Showing the first
address of a newly generated key could work like this:
atto new | tee seed.txt | atto address

The address subcommand displays addresses for a seed, the balance
subcommand receives pending sends and shows the balance of an account,
the representative subcommand changes the account's representative and
the send subcommand sends funds to an address.

ACCOUNT_INDEX is an optional parameter, which must be a number between 0
and 4,294,967,295. It allows you to use multiple accounts derived from
the same seed. By default the account with index 0 is chosen.

Technical details

atto is written with less than 1000 lines of code and uses minimal external dependencies. This makes it easy to audit the code yourself and ensure, that it does nothing you wouldn't want it to do.

To change some defaults, take a look at config.go.

Signatures are created without the help of a node, to avoid your seed or private keys being stolen by a node operator. Apparently this is not to be taken for granted, since the node API offers, for example, a method for signing your blocks.

atto does not have any persistance and writes nothing to your file system. This makes atto very portable, but also means, that no history is stored locally. I recommend using a service like to investigate transaction history.