OWS — Open Wallet Standard

Rust implementation of the Open Wallet Standard for secure, local-first crypto wallet management.

Quick Install

curl -fsSL https://openwallet.sh/install.sh | bash

This installs the ows CLI binary, plus Node.js and Python bindings if those runtimes are available.

Or clone and build from source (requires Rust 1.70+):

git clone https://github.com/open-wallet-standard/core.git
cd core/ows
cargo build --workspace --release

CLI Reference

Command	Description
`ows wallet create`	Create a new wallet with addresses for all chains
`ows wallet list`	List all wallets in the vault
`ows wallet info`	Show vault path and supported chains
`ows sign message`	Sign a message with chain-specific formatting
`ows sign tx`	Sign a raw transaction
`ows mnemonic generate`	Generate a BIP-39 mnemonic phrase
`ows mnemonic derive`	Derive an address from a mnemonic
`ows update`	Update ows and bindings
`ows uninstall`	Remove ows from the system

Language Bindings

The bindings are standalone — they embed the Rust core via native FFI. No CLI or install script required.

Language	Package	Install
Node.js	`@open-wallet-standard/core`	`npm install @open-wallet-standard/core`
Python	`open-wallet-standard`	`pip install open-wallet-standard`

import { createWallet, signMessage } from "@open-wallet-standard/core";

const wallet = createWallet("my-wallet");
console.log(wallet.accounts); // addresses for EVM, Solana, Bitcoin, Cosmos, Tron

const sig = signMessage("my-wallet", "evm", "hello");
console.log(sig.signature);

Crates

Crate	Description
`ows-core`	Types, CAIP-2/10 parsing, errors, config. Zero crypto dependencies.
`ows-signer`	ChainSigner trait, HD derivation, address derivation for EVM, Solana, Bitcoin, Cosmos, and Tron.
`ows-lib`	Library interface used by language bindings and the CLI.
`ows-cli`	The `ows` command-line tool.

Supported Chains

EVM (Ethereum, Polygon, etc.) — secp256k1, EIP-55 addresses, EIP-191 message signing
Solana — Ed25519, base58 addresses
Bitcoin — secp256k1, BIP-84 native segwit (bech32)
Cosmos — secp256k1, bech32 addresses (configurable HRP)
Tron — secp256k1, base58check addresses

License

See repository root for license information.