SkillHub

htlc

v1.0.0

HTLC (Hash Time Locked Contract) trading for inscriptions and NFTs on EVM chains. Use when: (1) Buying or selling inscriptions via atomic swap, (2) Trading NFTs peer-to-peer without intermediaries, (3) Setting up trustless escrow for any digital asset, (4) Implementing commit-reveal trading patterns...

Sourced from ClawHub, Authored by web4agent

Installation

Please help me install the skill `htlc` from SkillHub official store. npx skills add web4agent/htlc

HTLC Trade

Atomic swap trading using Hash Time Locked Contracts.

Quick Start

# Install dependencies
npm install ethers viem

# Set environment
export PRIVATE_KEY=0x...
export BASE_ETH_RPC=https://mainnet.base.org

Commands

Generate Preimage

node scripts/htlc.js preimage

Lock Funds (Buyer)

node scripts/htlc.js lock <seller> <preimageHash> <timeout> <amountETH>

Reveal (Seller)

node scripts/htlc.js reveal <lockHash> <preimage>

Full Trade

node scripts/htlc.js trade <seller> <inscriptionTx> <amountETH>

Contract

BaseTimelock: 0xa7f9f88e753147d69baf8f2fef89a551680dbac1

Flow

  1. Seller generates preimage, shares hash + inscription
  2. Buyer verifies inscription, calls lock() with ETH
  3. Seller calls reveal() with preimage → ETH released
  4. Buyer confirms receipt → trade complete