# Crypto Wallet Integration

## <mark style="color:purple;">Crypto Wallet Integration</mark>

Multi-network wallet with signing sandbox protection. Undrainable by design.

![Crypto Wallet Integration](https://macro-browser-gitbook.netlify.app/images/features/crypto-wallet.svg)

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### <mark style="color:purple;">The Wallet Drainage Problem</mark>

Most wallet interactions are blind:

* Cryptic hex strings
* Approvals that all look the same
* No idea what you're authorizing
* Hope it's legit, click confirm

Drainers exploit this.

### <mark style="color:purple;">Signing Sandbox</mark>

Every wallet interaction passes through the sandbox:

#### 1. Interception

Catches every:

* Wallet connection request
* Transaction signature request
* Contract interaction
* Token approval

#### 2. Translation

Turns hex into plain English:

"Approve unlimited DAI to contract 0x123..." becomes **"This allows the contract to spend ALL your DAI"**

Shows exact amounts, token names, contract functions. Highlights risk level (low/medium/high/critical).

#### 3. Policy Check

Your rules determine what's allowed:

* Per-dApp spending limits
* Approved contract whitelist
* Maximum approval amounts
* Forbidden function calls

**One line:** Translates, checks, and only lets scoped safe permissions through.

### <mark style="color:purple;">Multi-Network Support</mark>

**Supported networks:**

* Ethereum mainnet
* BSC, Polygon, Arbitrum, Optimism
* L2s and sidechains
* Testnets (Goerli, Sepolia, etc.)

Per-network configuration. Switch networks per dApp.

### <mark style="color:purple;">Per-dApp Permissions</mark>

Granular control over what each dApp can access:

**Uniswap:**

* Can access up to 1 ETH per transaction
* Approved for swap functions only
* No unlimited token approvals

**Aave:**

* Can access lending pools
* Maximum deposit: 5 ETH
* Cannot withdraw to external addresses

Define rules once. Enforce automatically.

### <mark style="color:purple;">Watch-Only Wallets</mark>

Monitor addresses without holding keys:

* Track whale wallets
* Monitor protocol treasuries
* Watch your cold storage
* No private key exposure

### <mark style="color:purple;">Address Book</mark>

Label and organize addresses:

* Friends and colleagues
* Exchange deposit addresses
* Protocol contracts
* Quick send to saved contacts

### <mark style="color:purple;">Safe Test Mode</mark>

Test dApp interactions on testnets before mainnet:

* Connect to Goerli, Sepolia
* Validate transaction logic
* Experiment risk-free
* Switch to mainnet when confident

### <mark style="color:purple;">Privacy Features</mark>

**Privacy Mixer** - Break on-chain transaction trails with untraceable transfers

**Private Swaps** - Trade without revealing identity. No MEV, no front-running

**Private Sending** - Transfer tokens without public correlation

### <mark style="color:purple;">Hardware Wallet Support</mark>

Integrate with hardware wallets for high-security flows:

* Ledger and Trezor support
* QR code signing for air-gapped devices
* Hardware confirmation for high-risk transactions

### <mark style="color:purple;">Profile Integration</mark>

Wallets respect Privacy Profiles:

* **Work profile** - Professional wallet with clean transaction history
* **Degen profile** - High-risk DeFi experiments
* **Anon profile** - Privacy-first wallet with mixer

Each profile has separate wallets. No cross-contamination.

### <mark style="color:purple;">One-Click Revoke</mark>

Revoke dApp permissions instantly:

* View all active approvals
* One-click revoke per dApp
* Bulk revoke all permissions
* No gas fees for revocation (updates locally)

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Undrainable by design. Full control over permissions.

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