Claude Code Plugins

Community-maintained marketplace

Feedback

contract-source

@cheolwanpark/claude-plugins
0
0

Use this skill when the user asks to "get contract source code", "show verified contract", "fetch source from etherscan", "view smart contract code", or mentions viewing verified source code on blockchain. Requires a contract address and optional chain parameter (ethereum, polygon, arbitrum, optimism, base, bsc).

Install Skill

1Download skill
2Enable skills in Claude

Open claude.ai/settings/capabilities and find the "Skills" section

3Upload to Claude

Click "Upload skill" and select the downloaded ZIP file

Note: Please verify skill by going through its instructions before using it.

SKILL.md

name contract-source
description Use this skill when the user asks to "get contract source code", "show verified contract", "fetch source from etherscan", "view smart contract code", or mentions viewing verified source code on blockchain. Requires a contract address and optional chain parameter (ethereum, polygon, arbitrum, optimism, base, bsc).
allowed-tools Bash

Contract Source Fetcher

Fetches verified smart contract source code from Etherscan (or equivalent block explorer).

Usage

Run the script with address and chain:

${CLAUDE_PLUGIN_ROOT}/scripts/crypto-contract-source.sh <address> [chain]

Arguments

  • address (required): Contract address in hex format (0x + 40 hex characters). ENS names are NOT supported.
  • chain (optional): Chain name - ethereum (default), polygon, arbitrum, optimism, base, bsc

Supported Chains

Chain Aliases Explorer
ethereum eth, mainnet Etherscan
polygon matic Polygonscan
arbitrum arb Arbiscan
optimism op Optimism Etherscan
base - Basescan
bsc binance BSCScan

Requirements

  • cast (Foundry) must be installed
  • API key must be set for the target chain:
    • ETHERSCAN_API_KEY for Ethereum
    • POLYGONSCAN_API_KEY for Polygon
    • ARBISCAN_API_KEY for Arbitrum
    • OPTIMISM_API_KEY for Optimism
    • BASESCAN_API_KEY for Base
    • BSCSCAN_API_KEY for BSC

Examples

# Get WETH source on Ethereum
${CLAUDE_PLUGIN_ROOT}/scripts/crypto-contract-source.sh 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2

# Get Uniswap Router source on Polygon
${CLAUDE_PLUGIN_ROOT}/scripts/crypto-contract-source.sh 0xa5E0829CaCEd8fFDD4De3c43696c57F7D7A678ff polygon