Blockchain Explorer CLI

Command-line blockchain explorer for analyzing transactions, addresses, smart contracts, blocks, and tokens across multiple networks.

Installation

/plugin install blockchain-explorer-cli@claude-code-plugins-plus

Usage

Explore Command

/explore

Or use the shortcut:

/explore

Example Queries

# Analyze address
/explore Look up address 0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb

# Check transaction
/explore Analyze transaction 0xabc123def456...

# Smart contract analysis
/explore What does this contract do: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48

# ENS lookup
/explore Show me vitalik.eth portfolio

# Block information
/explore What's in the latest Ethereum block?

# Token analysis
/explore Analyze USDC token contract

# Multi-query
/explore Compare addresses: 0xabc... and 0xdef...

Features

• Address Analysis - Balance, tokens, NFTs, transaction history, activity patterns
• Transaction Lookup - Status, gas fees, decoded input, token transfers, events
• Smart Contract Explorer - Verification status, functions, security analysis, source code
• Block Information - Producer, transactions, gas usage, statistics
• Token Analytics - Supply, holders, distribution, recent transfers
• Multi-Network Support - Ethereum, Polygon, Arbitrum, Optimism, Base, and more
• ENS Resolution - Lookup .eth domains
• Data Decoding - Function calls, event logs, input data

What It Analyzes

Addresses

1. Balances - Native tokens and ERC-20s
2. NFT Portfolio - All NFT holdings
3. Transaction History - Sent and received
4. Contract Interactions - DeFi protocols used
5. Activity Patterns - Trader/investor/bot classification

Transactions

1. Status & Confirmations - Success/failure state
2. Transfer Details - From, to, value
3. Gas & Fees - Cost breakdown
4. Method Calls - Decoded function parameters
5. Token Transfers - ERC-20/721 movements
6. Event Logs - Contract events emitted

Smart Contracts

1. Verification Status - Source code availability
2. Contract Functions - Public methods and signatures
3. Security Analysis - Proxy patterns, upgradeability, admin keys
4. Token Standards - ERC-20/721/1155 implementation
5. Usage Metrics - Transaction count, unique users

Blocks

1. Block Details - Number, hash, timestamp
2. Producer Info - Miner/validator, rewards
3. Transaction List - All txs in block
4. Gas Statistics - Usage and base fee

Tokens

1. Supply Metrics - Total, circulating, max supply
2. Holder Distribution - Top holders, concentration
3. Market Data - Price, market cap, volume
4. Transfer Activity - Recent movements

Supported Networks

• Ethereum Mainnet - Primary network
• Layer 2s - Arbitrum, Optimism, Base
• Sidechains - Polygon, BNB Chain, Avalanche
• Others - Fantom, Gnosis Chain

Output Formats

Comprehensive Tables

• Balance breakdowns
• Token holdings
• Transaction history
• Top holders

Decoded Data

• Function parameters
• Event logs
• Input data

Visual Indicators

• Success / Failed
• Verified / ️ Unverified
• Charts and percentages

Security Warnings

• Unverified contracts
• High-risk patterns
• Suspicious activity

Data Interpretation

Transaction Status

• Success: Executed correctly
• Failed: Reverted (check reason)
• Pending: Awaiting confirmation

Address Types

• EOA: User wallet (can initiate transactions)
• Contract: Smart contract (code at address)
• Token: ERC standard implementation
• Proxy: Upgradeable contract

Gas Efficiency

• Low (<50%): Efficient operation
• Medium (50-90%): Normal complexity
• High (>90%): Very complex or near limit

Common Use Cases

Portfolio Tracking

Check wallet balances and token holdings.

Transaction Verification

Confirm transaction success and details.

Contract Research

Understand what a smart contract does.

Security Analysis

Check for contract verification and known issues.

Token Discovery

Research new tokens before trading.

On-Chain Forensics

Trace transaction flows and connections.

Important Notes

• Data refreshes continuously as blocks are mined
• Provides blockchain data, not financial advice
• Unverified contracts may be risky
• Gas prices are estimates, actual may vary
• Some contract functions require special permissions
• ENS names are resolved on-chain
• Token prices may not be real-time

Data Sources

Analysis uses blockchain explorers APIs:

• Etherscan (Ethereum)
• Polygonscan (Polygon)
• Arbiscan (Arbitrum)
• Optimistic Etherscan (Optimism)
• And network-specific explorers

Privacy Note

Blockchain data is public and transparent. All addresses, transactions, and contract interactions are visible to everyone.

Requirements

• Address, transaction hash, or block number
• (Optional) Network specification
• (Optional) What specific aspect to analyze

Files

• commands/explore.md - Main blockchain exploration command

License

MIT License - See LICENSE file for details