Step 1: Enter Your Intent

On the swap page, select:

• • The token and network you want to send from
• • The token and network you want to receive
• • The amount you want to send

The interface will automatically fetch supported tokens and networks from the API. You can swap tokens using the swap button to reverse the direction.

Step 2: Get a Quote

Once you enter an amount, the system automatically requests a tentative quote from the API. The quote includes:

• • Exchange rate between the two tokens
• • Exact amounts for both sides of the swap
• • Expiration time (quotes are time-limited for accuracy)

Quotes update automatically as you change amounts or tokens. The system debounces your input to avoid excessive API calls.

Step 3: Create Swap Intent

After reviewing the quote, you need to:

1. Enter your settlement address (where you want to receive tokens)
2. Click "Swap" to create the intent

Creating the intent generates a fixed shift using the quote ID. You'll receive a deposit address where you need to send your tokens. The intent is immediately published to the dark pool where solvers can see it.

Step 4: Deposit & Execution

Once your intent is created:

1. Send the exact amount of tokens to the provided deposit address
2. Solvers monitor the dark pool and compete to execute your swap
3. When a solver executes, you receive tokens at your settlement address

The execution happens automatically once you deposit. You can monitor your swap status through the account page or by staying on the swap page.

The Dark Pool

The dark pool is a private, off-chain system where swap intents are published. Unlike public blockchains where all transactions are visible, the dark pool provides privacy by:

• • Keeping intents private until execution
• • Not revealing your trading strategy publicly
• • Preventing front-running and MEV attacks
• • Allowing only authorized solvers to see intents
• • Hiding your settlement address from solvers until they claim the intent
• • Solvers maintain your swaps privacy by maintaining a strict contract-enforced no logging policy

Intents are broadcast via WebSocket to connected solvers, enabling real-time competition for execution.

Solvers

Solvers are specialized participants in the ZSwap ecosystem who compete to execute user intents at the best rates. To become a solver, you must:

• • Stake $20,000 worth of ZSWAP tokens
• • Submit an application and sign an NDA
• • Review the Rust implementation example
• • Connect to the WebSocket dark pool endpoint

Solvers monitor the WebSocket endpoint for new intents and compete to find optimal execution paths. They can route through multiple chains, DEXs, and liquidity sources to provide the best rates. Important privacy and security features:

• • Address Privacy: Solvers cannot see your settlement address before claiming an intent. This prevents address-based tracking and analysis.
• • Claim Commitment: Once a solver claims an intent, they are committed to fulfilling it before expiration or face slashing of their staked tokens.
• • Execution Guarantee: The slashing mechanism ensures solvers fulfill their commitments, protecting users from failed executions.

Successful solvers earn rewards for their executions, while those who fail to fulfill claimed intents face penalties.

WebSocket Integration

The dark pool uses WebSocket connections for real-time intent broadcasting. The WebSocket endpoint is available at:

Message types include:

• • connected - Connection confirmation
• • swap_intent - New intent published

You can monitor the dark pool in real-time using the Monitor page, which displays all active intents.

Privacy Features

• •
  Dark Pool: Intents are published privately, not on public blockchains
• •
  No Public Order Book: Your trading intentions remain private until execution
• •
  Intent-Based: You don't reveal your execution strategy
• •
  Solver Competition: Multiple solvers compete, preventing any single entity from seeing all intents

No KYC Required

ZSwap operates without KYC (Know Your Customer) requirements. This means:

• • No identity verification
• • No account restrictions
• • No surveillance or tracking
• • Complete financial sovereignty

You maintain full control over your funds and trading activity. The only requirement is having a valid wallet address for settlement.

Security Measures

• •
  Solver Staking: Solvers must stake $20,000 worth of ZSWAP tokens, ensuring commitment and providing security
• •
  Fixed Quotes: Exchange rates are locked in at quote time, preventing slippage
• •
  Time-Limited Quotes: Quotes expire to ensure accuracy and prevent stale rates

Overview

ZSwap offers virtual pre-paid Mastercard accounts that allow you to top up and manage funds for spending. Card accounts provide a seamless way to convert cryptocurrency into spendable balance while maintaining privacy and security.

Key features:

• • Virtual pre-paid Mastercard accepted at 150M+ merchants
• • Secure card balance management
• • Complete transaction history
• • Privacy-focused design
• • Easy top-up from any supported network (automatically routed through Zcash)

Top-Ups & Funding

You can top up your card account using any of the supported networks available for swaps (Bitcoin, Ethereum, Solana, Arbitrum, and many more). All card top-ups are automatically routed through Zcash internally, ensuring maximum privacy for your transactions. Zcash's shielded transactions provide enhanced privacy protection, making it ideal for card funding operations.

To top up your card account:

• • Navigate to your account page
• • Access the Card Information section
• • Follow the top-up instructions
• • Send funds from any supported network (BTC, ETH, USDT, USDC, etc.)

Your funds are automatically routed through Zcash's privacy-preserving network internally, ensuring your funding activity remains private regardless of which network you use to send funds.

Limits & Restrictions

No KYC Required: Card accounts do not require KYC (Know Your Customer) verification for top-ups up to $2,000 USD per month. This means you can use the service without providing personal identification information.

Geographic Restrictions: Card accounts are not available for US citizens or residents of OFAC sanctioned countries. These restrictions are in place due to regulatory requirements.

Transaction History

All card account transactions are securely stored and accessible through your account page. The transaction history includes:

• • Deposit transactions (top-ups)
• • Withdrawal transactions
• • Transfer transactions
• • Refund transactions

Each transaction shows the amount, currency, timestamp, status, and description. Transaction data is protected by your private key authentication, ensuring only you can access your transaction history.

To view your transaction history, navigate to your account page and access the Card Information section. Your balance and recent transactions will be displayed there.