The Counterparty protocol is open source and extensively tested. Besides allowing users to create and trade any kind of digital token, Counterparty enables anyone to write specific digital agreements, or programs known as Smart Contracts, and execute them on the Bitcoin blockchain. Smart Contracts are a revolutionary technology which opens the door to endless possibilities. By using the Bitcoin’s decentralized ledger network and Counterparty’s built-in scripting language, real-world scenarios can now be transformed into code and executed automatically with no need for an intermediary.

Counterparty currently has four different types of wallets: a desktop wallet, a web wallet, a mobile wallet, and a Chrome extension wallet. These wallets provide all of the functionality of the Counterparty’s reference client, while preserving the security of your funds.

When you use one of the Counterparty wallets, all transactions are signed on your device and your private keys are never stored on the servers. All information sent to the servers is first encrypted by the wallet client for maximum security, and every trace of your session is erased when you log out. All you need is your unique passphrase for easy and secure access.