Store the Bitcoin you acquire through Auto-Buy and Boost in SmashFi’s Custody Safe,
a non-custodial wallet where you hold the private keys.
This means you have complete control over your Bitcoin, free from the risks of rug-pulls and hacks.
Automate, Boost and Secure your Bitcoin with
Custody Safe!
At SmashFi, we believe in the power of self-custody, especially when it comes to Bitcoin.
True ownership means holding your private keys, giving you complete control of your assets.
However, we understand that traditional self-custody comes with challenges:
Complex Seed Storage
Safeguarding seed phrases can be a hassle.
Risk of Loss
Losing access to your wallet means losing your Bitcoin forever.
High Withdrawal Fees
Transferring funds can often incur expensive fees.
Why Choose SmashFi's Custody Safe?
Own Your Bitcoin
Full Control,
No Middlemen
Maintain full control over your Bitcoin,
secured by MPC technology,
without the need for seed phrases.
Fee-Free Bitcoin
Self-Custody
Earn points by stacking sats with Auto-buy on SmashFi. Redeem them for zero-fee Bitcoin transfers from your SmashFi account to your private wallet.
Collaborative
Security with
Multi-Party
Access
Share wallet access with trusted individuals—require multiple approvals for Bitcoin withdrawals, perfect for families & businesses.
Secure &
Recoverable,
Without Seed
Phrases
MPC technology eliminates the risk of losing your Bitcoin—simply set a passcode and recover access anytime.
Stack Bitcoin
Smarter,
Withdraw on Your
Terms
Accumulate as much Bitcoin as you want in SmashFi Wallet, then transfer it in bulk to your hardware wallet—saving on-chain fees and avoiding redundant transactions.
Accumulate as much Bitcoin as you want in SmashFi Wallet, then transfer it in bulk to your hardware wallet—saving on-chain fees and avoiding redundant transactions.
Q. What is Custody Safe?
Custody Safe is SmashFi Wallet, a non-custodial Bitcoin wallet solution powered by Fireblocks Embedded Wallet (EW) technology. It gives users full control over their Bitcoin by allowing them to hold their own private keys, eliminating risks associated with exchanges or third-party custodians. Users can connect their SmashFi account to the SmashFi Wallet app via a QR code scan, enabling seamless and secure Bitcoin management.
Q. Are there any fees for transferring Bitcoin into Custody Safe?
Transferring Bitcoin into Custody Safe is zero-fee only when the Bitcoin is moved from your SmashFi account to your private wallet. SmashFi provides a limited number of fee-free transfers for users who acquire Bitcoin through Auto-buy or Boost, encouragingcost-efficient self-custody. These zero-fee transfers are limited per period (weekly/monthly), ensuring users can DCA and self-custody efficiently without excessive fees.
Transfers from external wallets may still incur standard blockchain network fees.
Q. How does Custody Safe ensure security for my Bitcoin?
Custody Safe secures your Bitcoin using a 2-of-2 Multi-Party Computation (MPC) signature scheme, a more advanced alternative to traditional Multi-Signature (Multi-Sig) wallets.
🔒 How it Works:
Instead of generating a single private key, MPC splits it into two separate cryptographic key shares. 1. One key share is securely stored on your device.
2. The other key share is encrypted and stored on Fireblocks’ secure servers.Every transaction requires both key shares to sign, ensuring that no single party—including SmashFi or Fireblocks—can unilaterally control your Bitcoin.
2. The other key share is encrypted and stored on Fireblocks’ secure servers.
✅ Why 2-of-2 MPC is Safer:
1. Eliminates Single Point of Failure – No single entity can access or control your Bitcoin.
2. More Resilient Against Hacks – No single entity can access or control your Bitcoin.
3.No On-Chain Footprint – Unlike Multi-Sig, which publicly exposes multiple signers on the blockchain, MPC keeps everything off-chain, reducing attack risks.
4.Simplified Wallet Recovery – If you lose your device, your backup key (stored safely by you) allows for secure wallet restoration without needing SmashFi’s intervention.
Q. Why should I use Custody Safe instead of keeping Bitcoin on an exchange?
When Bitcoin is stored on an exchange, you don’t truly own it—the exchange does. This means your Bitcoin is at risk of being frozen, hacked, or lost if the platform experiences financial issues or security breaches. Custody Safe ensures that Bitcoin is withdrawn from SmashFi and stored securely in your own non-custodial wallet, outside the reach of third parties.
Unlike major exchanges, SmashFi does not hold your Bitcoin—only you do.
Unlike major exchanges, SmashFi does not hold your Bitcoin—only you do.
Q. What happens if I lose access to my Custody Safe wallet?
If you lose access to your Custody Safe wallet, you can only restore it if you have your backup key. When setting up SmashFi Wallet, a backup key (e.g., a1B2c3D4a1b2C3d4A1b2C3==) is generated. Neither SmashFi nor Fireblocks can recover your Bitcoin without it.
✅ If you have your backup key: You can restore your wallet on a new device and regain access to your Bitcoin.
❌ If you lose your backup key: Your Bitcoin is permanently unrecoverable.
To prevent loss, store your backup key securely. This ensures you maintain full self-custody while eliminating seed phrase complexities.
Q. Can I access Custody Safe across multiple devices?
Yes, Custody Safe supports access from multiple devices. You can manage your Bitcoin seamlessly across different platforms, whether on web or mobile, providing you with a consistent experience no matter where you are.
Q. What makes Custody Safe different from other wallet solutions?
Custody Safe offers a fundamentally different approach to Bitcoin self-custody—one that is automated, cost-efficient, and institutionally secure, setting it apart from both traditional wallets and exchange-based custodians.
- Unlike typical wallets, Custody Safe is directly connected to SmashFi’s platform, enabling automated Bitcoin accumulation and self-custody.
- Bitcoin acquired through Auto-buy or Boost is seamlessly transferred to your wallet, removing the need for manual withdrawals.
- Unlike Multi-Sig wallets, Custody Safe’s MPC (Multi-Party Computation) security ensures that key shares are never exposed on-chain.
- Transactions require two cryptographic key shares (one on your device, one encrypted on Fireblocks), making it more resilient to hacks than both traditional wallets and exchange custodians.
- Regular self-custody transfers come with on-chain fees, but Custody Safe enables zero-fee withdrawals for Bitcoin acquired through SmashFi’s features, reducing long-term costs.
Q. Can I still withdraw my Bitcoin from Custody Safe?
Yes, you can withdraw your Bitcoin from Custody Safe to any external wallet at any time. Custody Safe is designed to give you full control and flexibility, allowing you to move your Bitcoin whenever and wherever you need.
Q. What blockchains and assets does Custody Safe support?
Custody Safe is a Bitcoin-focused service with limited blockchain support. It exclusively supports Bitcoin (BTC) and USDT (TRC-20), allowing users to securely store and manage these assets within their private wallet.
Q. What is Backup Key and how to store it safely?
🔒 Where and How to Store It Safely:
✅ Best Options for Secure Storage:
1. Password Manager (Recommended) – Store it in a secure password manager like Bitwarden, 1Password, or KeePass to keep it encrypted and easily accessible.
2. External USB Drive – Copy and save the key in a text file stored on an offline USB drive. Do not keep the USB connected to the internet.
3. Paper Backup– Write the Backup Key on a physical notebook and store it in a safe place (e.g., a personal safe or lockbox).
4. Encrypted Notes (For Tech-Savvy Users)– If using a cloud storage service (Google Drive, iCloud, Dropbox), encrypt the file first using Veracrypt or Bitwarden encrypted notes before saving.
5. Securely Share With a Trusted Person– For extra redundancy, consider sharing half the key with a trusted friend or family member while keeping the other half yourself.
❌ What NOT to Do:
Do not take a screenshot or store it in your phone’s gallery. Do not copy-paste it into a messaging app, email, or social media. Do not store it in a plain text file on your computer without encryption.
By following these steps, you ensure that your Bitcoin remains safe and recoverable—without exposing your backup key to unnecessary risks.
Q. How do I set up and access Custody Safe?
To use Custody Safe, you need to link it to your SmashFi account:
1. Download the SmashFi app (Custody Safe).
2. Log into the SmashFi website (smashfi.me) on your browser.
3. Scan the QR code from the website using the SmashFi Wallet app.
Once linked, your private keys are generated securely on your device using Fireblocks’ Embedded Wallet technology. From there, you can withdraw Bitcoin from SmashFi into your personal wallet without fees (if eligible), and manage your holdings with full self-custody.
Q. How does Custody Safe integrate with SmashFi’s Auto-buy and Boost features?
SmashFi Wallet is directly connected to the SmashFi platform, enabling seamless automated self-custody. When users purchase Bitcoin through Auto-buy or grow their holdings using Boost, they accumulate SmashFi points, which can be redeemed for zero-fee withdrawals into their Custody Safe wallet.
This ensures that users:
✅ Effortlessly accumulate Bitcoin without worrying about transfer fees.
✅ Securely withdraw Bitcoin into self-custody instead of leaving it on an exchange.
✅ Have full control over their BTC without relying on third-party custodians.
✅ Securely withdraw Bitcoin into self-custody instead of leaving it on an exchange.
✅ Have full control over their BTC without relying on third-party custodians.
Unlike other platforms where Bitcoin remains exposed to exchange risks, SmashFi guarantees that your Bitcoin always ends up in your private wallet.