Skill

evm-contract-source

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 EVM chains (Ethereum, Polygon, Arbitrum, etc.). Requires a contract address and optional chain parameter.

npx claudepluginhub cheolwanpark/claude-plugins --plugin crypto

Popularity

Parent stars

Invocation

How this skill is triggered — by the user, by Claude, or both

Slash command

/crypto:evm-contract-source

User invocable

Model invocable

Inline context

Default effort

Tool Access

This skill is limited to the following tools:

Bash

Context Preview

The summary Claude sees in its skill listing — used to decide when to auto-load this skill

Fetches verified smart contract source code from block explorers (Etherscan, Polygonscan, etc.).

SKILL.md

58 lines · ~470 tokens

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MaintenancePoor

Last CommitJan 14, 2026

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evm-contract-source

EVM Contract Source Fetcher

Fetches verified smart contract source code from block explorers (Etherscan, Polygonscan, etc.).

Usage

Run the script with address and optional chain:

${CLAUDE_PLUGIN_ROOT}/scripts/crypto-evm-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

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 (also used as fallback for other chains)
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-evm-contract-source.sh 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 # Get QuickSwap Router source on Polygon ${CLAUDE_PLUGIN_ROOT}/scripts/crypto-evm-contract-source.sh 0xa5E0829CaCEd8fFDD4De3c43696c57F7D7A678ff polygon

Note

For Solana program IDL, use the sol-program-idl skill instead.