FastPath - Trustless Cross-Chain Swaps

FastPath Swap

Trustless Cross-Chain Bitcoin Swaps

👋 Welcome! Here's how to swap:

1️⃣

Connect

Connect your wallet (MetaMask, etc.)

2️⃣

Create Order

Bridge Assets

3️⃣

Auto-Complete

Relayer handles the rest! ✨

💡 Tip: All swaps are permissionless & trustless. Your funds are secured by smart contracts, not intermediaries.

Contract Address (auto-detected)

Not connected

Jump to:

💳 Direct Payment Request No Swap ▼

⚡ FastPath Swap Trustless ▶

Swap between any chains - trustless, instant settlement

From

sats

Your Address on Destination Chain

Advanced Options

Preferred Relayer (Optional) Deadline (hours)

Cross-chain atomic swap • Trustless • No wrapped tokens

📋 Order Management ▼

📁 My Recent Orders

Connect wallet to see your orders

Or lookup any order by ID:

🔧 PSBT Builder Non-Custodial ▼

1️⃣ Load UTXOs
Enter your address

2️⃣ Build TX
Select inputs & outputs

3️⃣ Sign
Use your wallet

4️⃣ Broadcast
Send to network

How it works: Create an unsigned PSBT → Sign with Sparrow, Ledger, or any PSBT-compatible wallet → Broadcast to Bitcoin network.
✓ Your keys never leave your device.

Step 1: Your Bitcoin Address

Enter the address holding your Bitcoin. We'll fetch available UTXOs from mempool.space.

Step 2b: Define Outputs (Where to send)

💡 Change will be calculated automatically. Miner fee ≈ 250-500 sats.

Decoded PSBT (Technical Details)

Step 4: Paste Signed PSBT & Broadcast

After signing in your wallet, paste the signed PSBT or raw transaction hex here.

⚠️ Final step! Broadcasting sends your transaction to miners. This is irreversible.

🔐 Legacy Gateway Tools Relayer ▼

Relayer / Fulfill Payment

🔑 Register Wallets as Relayers

Any registered wallet can register other addresses. Enter addresses (one per line or comma-separated).

Additional Addresses to Register

Activity Log

FastPath Swap

Direct Bitcoin Payment

Relayer / Fulfill Payment

🔑 Register Wallets as Relayers