Introducing XCP Wallet

XCP Wallet is a Chrome extension for Bitcoin and Counterparty. Send BTC and Counterparty tokens, trade on the DEX, issue assets, sign dApp transactions, all from your browser.

Features

• Send, issue, dispense, trade — the full Counterparty DEX, from your browser
• UTXO atomic swaps — trade UTXO-attached assets via xcpdex.com, single-transaction settlement
• Trezor support — your seed phrase never enters the extension
• dApp provider API — sites request transactions, you approve from the extension
• BIP-322 message signing — prove ownership without moving funds
• Import from Freewallet — BIP39 seed phrases, legacy and SegWit derivation paths

Dependency Hygiene

12 runtime dependencies. Most browser wallets ship 100+. Crypto is entirely @noble and @scure — Cure53-audited. No bitcoinjs-lib, no ethers, no axios.

Key storage: AES-256-GCM + PBKDF2 (600k iterations). Local tx verification. Trezor for hardware signing. MV3-compliant CSP. Not yet independently audited — see AUDIT.md.

Install

• Chrome Web Store — one-click install
• GitHub Releases — versioned builds for side-loading
• Source — 309 commits, 99% TypeScript, MIT

Learn and Get Help

• Video tutorials — setup, sending, dApp connections, UTXO swaps
• Telegram support — questions, bugs, feature requests

If you care about Counterparty and not trusting kitchen-sink wallets, the code is on GitHub.