More Than Just a Wallet,
It’s the Next-Generation Digital Asset Custody

Compared to earlier generations of custody products, Big Wallet gives you full control over your private keys
while offering a higher level of security at reasonable prices.

IOS Mobile

Manage your digital assets. Create & approve transactions anytime, anywhere.
download the app
Android Mobile

Manage your digital assets. Create & approve transactions anytime, anywhere.
download the app
Browser

Visit big wallet from your browser. Scan to log in directly through the app.
Open Browser
Chrome Extension

Connect to any Web3 Apps. Create transaction on browser extension and then review and sign the transactions on big wallet App.
Download Extension
Developer

Integrate seamlessly into your applications using the Big Wallet API.
API DOC

Download, Sign Up and Start Using Right Away

Getting Started is as Simple as 1-2-3

01 Sign Up

Sign up through an email invitation, create a wallet, and invite other members to join.

Verify your email to activate

Invite members to join

Back up recovery phrase
02 Create a Transaction

Transfer funds to exchanges, pay salaries and vendors, or airdrop tokens/NFTs.

Easily view token balances and NFT holdings

Transfer any asset

Confirm or modify approval policies
03 Execute Approval

Wallet members can verify transactions and approve them in accordance with your approval policies

Enforce N-M or more complex approvals

Members can either approve or reject

Track the signing process

Product Features

100% Asset Control

Private Keys Are Never Exposed

Big Wallet's proprietary MPC cryptography utilizes key shards to compute the final valid signature without ever having to expose the private key as well as shards.
Enhanced Security: Maintain control over your assets
Policy Engine

Multi-People Approval

Our approval rule configuration goes up to 5 dimensions, which extends beyond the traditional N-M multi-signature. After the policies for approval have been set, they must be implemented in such a way that no manipulation or circumvention is possible—not even by Big Wallet.
Learn more about our Policy Engine
Multi-Chain

Digital Assets

Big Wallet supports multiple native coins such as BTC, ETH, etc., as well as hundreds of tokens and NFTs, which can also be viewed in fiat currency value.
View big wallet's List of Supported Assets
Multi-Chain

Secure Web3 Gateway

Implement multi-signature security governance for DeFi, NFTs, etc. To protect users from malicious authorization, our secure Web3 Gateway performs an automatic security scan during the connection process.
Cost Effective

Save Up to 90% on ETH & BTC Transaction Fee

In comparison to the high gas costs associated with conventional multisig transactions, the gas costs of MPC transactions are the same as those associated with single private-key transactions. Transactions can be sent and received at scale with minimal overhead.

Enhanced Implementation Capability For Technical Teams and Developers

View API Doc

Automated Workflow Security Approval

When the predetermined policy is triggered, it automatically advances to a manual approval stage in big wallet's API workflow. This is an ideal combination of human-machine protection for you.
Cold, Warm & Hot Wallet

Big Wallet API makes it simple to create multi-layer wallet architecture. High levels of automation are achieved through features such as batch address generation, automated sweeping, and automatic gas calculations.
Multi-People Contract Governance

Combining MPC-based technology with Big Wallet's policy engine ensures that there is no single point of failure on the private key.

Comparative Advantages of Big Wallet

Traditional Custody

Secure private key generation
Secure private key storage
Secure private key usage
No currency limits
Low gas fees
Secure policy
Proof of storage
Transfer efficiency
On-chain privacy
Off-chain traceability
Protection against platform-based malicious acts
Protection against customer-based malicious acts

Contract
Multi-Signature

Secure private key generation
Secure private key storage
Secure private key usage
No currency limits
Low gas fees
Secure policy
Proof of storage
Transfer efficiency
On-chain privacy
Off-chain traceability
Protection against platform-based malicious acts
Protection against customer-based malicious acts

On-Chain
Multi-Signature

Secure private key generation
Secure private key storage
Secure private key usage
No currency limits
Low gas fees
Secure policy
Proof of storage
Transfer efficiency
On-chain privacy
Off-chain traceability
Protection against platform-based malicious acts
Protection against customer-based malicious acts

Secure private key generation
Secure private key storage
Secure private key usage
No currency limits
Low gas fees
Secure policy
Proof of storage
Transfer efficiency
On-chain privacy
Off-chain traceability
Protection against platform-based malicious acts
Protection against customer-based malicious acts

More Than Just a Wallet,
It’s the Next-Generation Digital Asset Custody

Compared to earlier generations of custody products, Big Wallet gives you full control over your private keys
while offering a higher level of security at reasonable prices.

IOS Mobile

Manage your digital assets. Create & approve transactions anytime, anywhere.
download the app
Android Mobile

Manage your digital assets. Create & approve transactions anytime, anywhere.
download the app
Browser

Visit big wallet from your browser. Scan to log in directly through the app.
Open Browser
Chrome Extension

Connect to any Web3 Apps. Create transaction on browser extension and then review and sign the transactions on big wallet App.
Download Extension
Developer

Integrate seamlessly into your applications using the Big Wallet API.
API DOC

Download, Sign Up and Start Using Right Away

Getting Started is as Simple as 1-2-3

01 Sign Up

Sign up through an email invitation, create a wallet, and invite other members to join.

Verify your email to activate

Invite members to join

Back up recovery phrase
02 Create a Transaction

Transfer funds to exchanges, pay salaries and vendors, or airdrop tokens/NFTs.

Easily view token balances and NFT holdings

Transfer any asset

Confirm or modify approval policies
03 Execute Approval

Wallet members can verify transactions and approve them in accordance with your approval policies

Enforce N-M or more complex approvals

Members can either approve or reject

Track the signing process

Product Features

Private Keys Are Never Exposed

Big Wallet's proprietary MPC cryptography utilizes key shards to compute the final valid signature without ever having to expose the private key as well as shards.
Enhanced Security: Maintain control over your assets
Multi-People Approval

Our approval rule configuration goes up to 5 dimensions, which extends beyond the traditional N-M multi-signature. After the policies for approval have been set, they must be implemented in such a way that no manipulation or circumvention is possible—not even by Big Wallet.
Learn more about our Policy Engine
Digital Assets

Big Wallet supports multiple native coins such as BTC, ETH, etc., as well as hundreds of tokens and NFTs, which can also be viewed in fiat currency value.
View big wallet's List of Supported Assets
Secure Web3 Gateway

Implement multi-signature security governance for DeFi, NFTs, etc. To protect users from malicious authorization, our secure Web3 Gateway performs an automatic security scan during the connection process.
Save Up to 90% on ETH & BTC Transaction Fee

In comparison to the high gas costs associated with conventional multisig transactions, the gas costs of MPC transactions are the same as those associated with single private-key transactions. Transactions can be sent and received at scale with minimal overhead.

Enhanced Implementation Capability For Technical Teams and Developers

View API Doc

Automated Workflow Security Approval

When the predetermined policy is triggered, it automatically advances to a manual approval stage in big wallet's API workflow. This is an ideal combination of human-machine protection for you.
Cold, Warm & Hot Wallet

Big Wallet API makes it simple to create multi-layer wallet architecture. High levels of automation are achieved through features such as batch address generation, automated sweeping, and automatic gas calculations.
Multi-People Contract Governance

Combining MPC-based technology with Big Wallet's policy engine ensures that there is no single point of failure on the private key.

Comparative Advantages of Big Wallet

Secure private key generation
Secure private key storage
Secure private key usage
No currency limits
Low gas fees
Secure policy
Proof of storage
Transfer efficiency
On-chain privacy
Off-chain traceability
Protection against platform-based malicious acts
Protection against customer-based malicious acts

On-Chain
Multi-Signature

Secure private key generation
Secure private key storage
Secure private key usage
No currency limits
Low gas fees
Secure policy
Proof of storage
Transfer efficiency
On-chain privacy
Off-chain traceability
Protection against platform-based malicious acts
Protection against customer-based malicious acts

Contract
Multi-Signature

Secure private key generation
Secure private key storage
Secure private key usage
No currency limits
Low gas fees
Secure policy
Proof of storage
Transfer efficiency
On-chain privacy
Off-chain traceability
Protection against platform-based malicious acts
Protection against customer-based malicious acts

Traditional Custody

Secure private key generation
Secure private key storage
Secure private key usage
No currency limits
Low gas fees
Secure policy
Proof of storage
Transfer efficiency
On-chain privacy
Off-chain traceability
Protection against platform-based malicious acts
Protection against customer-based malicious acts

IOS Mobile

Android Mobile

Browser

Chrome Extension

Developer

Product Features

100% Asset Control

Private Keys Are Never Exposed

Policy Engine

Multi-People Approval

Multi-Chain

Digital Assets

Multi-Chain

Secure Web3 Gateway

Cost Effective

Save Up to 90% on ETH & BTC Transaction Fee

Automated Workflow Security Approval

Cold, Warm & Hot Wallet

Multi-People Contract Governance

Comparative Advantages of Big Wallet

More Than Just a Wallet, It’s the Next-Generation Digital Asset Custody

IOS Mobile

Android Mobile

Browser

Chrome Extension

Developer

Download, Sign Up and Start Using Right Away

Product Features

Private Keys Are Never Exposed

Multi-People Approval

Digital Assets

Secure Web3 Gateway

Save Up to 90% on ETH & BTC Transaction Fee

Automated Workflow Security Approval

Cold, Warm & Hot Wallet

Multi-People Contract Governance

Comparative Advantages of Big Wallet

More Than Just a Wallet,
It’s the Next-Generation Digital Asset Custody