Take control of your Bitcoin with hardware-level security, mobile convenience, and trusted recovery. Bitkey combines the best of both worlds—complete ownership without the complexity.
Hardware security module with multi-signature protection
Seamless mobile experience with intuitive controls
You own your keys, you control your Bitcoin
Experience the perfect balance of security and simplicity. Bitkey Wallet is designed for Bitcoin holders who want enterprise-grade protection without sacrificing ease of use. Our unique approach combines hardware security with mobile convenience, making Bitcoin self-custody accessible to everyone.
Built with a hardware security module and multi-signature architecture to protect your Bitcoin from both digital and physical threats.
Send and receive Bitcoin quickly with optimized fee management and transaction batching for cost-effective transfers.
Access your Bitcoin anytime, anywhere with our mobile-first design that works seamlessly across all your devices.
Recover your wallet with confidence using our innovative social recovery system that doesn't compromise your privacy.
Bitkey Wallet represents a new generation of Bitcoin storage solutions. Unlike traditional hardware wallets that can be complex and intimidating, or hot wallets that sacrifice security for convenience, Bitkey offers the perfect middle ground.
Our patented multi-signature architecture distributes trust across three keys: your mobile device, the Bitkey hardware, and our secure cloud backup. This means you can transact with confidence, knowing that no single point of failure can compromise your Bitcoin.
The result is a wallet that feels as natural to use as any modern mobile app, while providing security guarantees that rival the most sophisticated enterprise solutions. Whether you're sending Bitcoin to a friend or managing a significant portfolio, Bitkey makes it simple and secure.
Your Bitcoin is protected by the same cryptographic standards used by banks and governments, but you maintain complete control over your funds.
Getting started with Bitkey is simple and straightforward. Our step-by-step process ensures you can begin securing your Bitcoin in just a few minutes, without compromising on security or usability.
Download the Bitkey app and follow the guided setup process. Connect your hardware device and create your secure wallet in minutes.
Seamlessly pair your mobile device with the Bitkey hardware using our secure Bluetooth connection. Your keys are distributed for maximum security.
Transfer your Bitcoin to your new multi-signature wallet. Your funds are now protected by hardware-level security and distributed key architecture.
Send, receive, and manage your Bitcoin with confidence. Every transaction requires approval from both your mobile device and hardware key.
Bitkey Wallet employs a sophisticated 2-of-3 multi-signature setup that fundamentally changes how Bitcoin custody works. Traditional wallets rely on a single private key, creating a single point of failure. Bitkey distributes this responsibility across three distinct keys, ensuring that no single device or service can compromise your funds.
The first key resides on your mobile device, secured by your device's hardware security module and protected by biometric authentication. The second key is stored on the Bitkey hardware device, a tamper-resistant module that provides offline security. The third key is held by Bitkey's secure cloud infrastructure, enabling recovery scenarios while maintaining your privacy.
This architecture means that any two of the three keys can authorize a transaction, but no single key can act alone. If you lose your phone, the hardware device and cloud backup can work together to recover your wallet. If the hardware device is damaged, your phone and cloud backup maintain access. This redundancy ensures your Bitcoin remains accessible while maintaining the highest security standards.
Every transaction requires cryptographic signatures from two of the three keys, creating a robust verification process that protects against both accidental loss and malicious attacks. The system is designed to be user-friendly while maintaining the security properties that make Bitcoin valuable.
Uptime reliability for secure transactions
Military-grade encryption for all operations
Multi-signature architecture for maximum security
Bitkey Wallet implements multiple layers of protection to ensure your Bitcoin remains secure against all known attack vectors. Our security model has been audited by leading cryptographic experts and follows industry best practices.
Tamper-resistant chip that stores your private keys offline and provides cryptographic operations in a secure environment.
2-of-3 signature scheme ensures no single point of failure while maintaining usability and recovery options.
Your transaction data and personal information remain private. We never store or access your private keys.
Recover your wallet without seed phrases using our innovative trusted contact system and secure cloud backup.
Traditional Bitcoin storage forces users to choose between security and convenience. Hardware wallets are secure but cumbersome for daily use. Mobile wallets are convenient but vulnerable to device compromise. Bitkey eliminates this tradeoff by combining the best aspects of both approaches.
Our hardware device uses a secure element chip—the same technology that protects credit card transactions and government communications. This chip is specifically designed to resist physical attacks, including sophisticated techniques used by nation-state actors. Even if an attacker gains physical access to your device, extracting your private key is computationally infeasible.
The mobile component leverages your smartphone's built-in security features, including secure enclaves, biometric authentication, and hardware-backed keystores. This creates a seamless user experience while maintaining cryptographic security guarantees. Together, these components form a defense-in-depth strategy that protects your Bitcoin across multiple attack surfaces.
Common Criteria security certification
Level 3 cryptographic module standards
Your Bitcoin is protected by three independent security layers that work together seamlessly.
Biometric + Hardware Enclave
Secure Element + Tamper Resistance
Encrypted Backup + Zero Knowledge
Security Audited
Penetration Tested
Open Source
Bug Bounty Program
Bitkey Wallet integrates seamlessly with the broader Bitcoin ecosystem. Connect with your favorite Bitcoin services, exchanges, and tools while maintaining full custody of your funds. Our open architecture ensures compatibility with both established platforms and emerging Bitcoin innovations.
Buy, sell, and send Bitcoin directly from your Cash App
Lightning-fast Bitcoin payments and savings
Dollar-cost averaging Bitcoin investment platform
Bitcoin-only financial services and custody
Multi-signature Bitcoin financial services
Advanced Bitcoin wallet for power users
Self-hosted Bitcoin payment processor
Bitcoin blockchain explorer and fee estimator
Connect with any Bitcoin service while maintaining full custody of your keys. Our open API allows developers to build custom integrations without compromising security.
Bitkey Wallet's open architecture enables seamless integration with the entire Bitcoin ecosystem. Whether you're using established platforms like Cash App or cutting-edge Lightning Network services, Bitkey provides secure, standardized connectivity that preserves your self-custody principles.
Our integration model uses industry-standard protocols like PSBTs (Partially Signed Bitcoin Transactions) and BIP-174 compliance to ensure compatibility with existing Bitcoin infrastructure. This means you can use Bitkey with your favorite Bitcoin services without sacrificing security or requiring custom implementations.
For developers and businesses, Bitkey offers comprehensive APIs and SDKs that make integration straightforward while maintaining the highest security standards. Build custom workflows, connect enterprise systems, or create new Bitcoin experiences—all while ensuring your users maintain full control over their private keys.
Partner integrations available
Self-custody preservation
Join the growing ecosystem of Bitcoin builders and businesses using Bitkey Wallet for secure, user-friendly Bitcoin integration. Our developer tools make it easy to get started.