Agent skill · data analytics · jeremylongshore
exploring-blockchain-data
Process query and analyze blockchain data including blocks, transactions,
Why this skill is useful
Provides specific commands and workflows for querying and analyzing blockchain data across multiple EVM-compatible networks that the AI wouldn't reliably generate on its own.
What it needs
Requires python installed locally. Requires etherscan account access. About 4k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Exploring Blockchain Data Overview Query and analyze blockchain data across multiple EVM-compatible networks including Ethereum, Polygon, Arbitrum, Optimism, and BSC. Supports transaction lookups, address balance checks, block inspection, token balance queries, transaction history retrieval, and whale wallet tracking via a unified CLI. Prerequisites Python 3.8+ with requests and web3 libraries installed (pip install requests web3) Etherscan API key (free tier provides 5 requests/second; set via ETHERSCANAPIKEY environment variable) Optional: API keys for Polygonscan, Arbiscan, and other chain-specific explorers for higher rate limits blockchainexplorer.py CLI script, chainclient.py, and tokenresolver.py modules available in the plugin directory RPC endpoint access (public endpoints work; dedicated providers like Alchemy, Infura, Chainstack, or QuickNode recommended for reliability) Instructions 1. Set the Etherscan API key as an environment variable: export ETHERSCANAPIKEY=<key> to unlock higher rate limits beyond the default 5 requests/second. 2. Run python blockchainexplorer.py tx <hash> to look up a transaction by hash, returning status, block number, from/to addresses, value transferred, and gas details. 3. Append --detailed to the transaction query to decode the function call, identify the interacting protocol, and display input parameters. 4. Specify --chain polygon, --chain arbitrum, or --chain bsc to query transactions on alternative EVM chains when the hash is not found on Ethereum. 5. Run python blockchainexplorer.py address <address> to check the native token balance and total transaction count for a wallet. 6. Add --history --limit 50 to the address query to retrieve the most recent 50 transactions with timestamps, values, and counterparties. 7. Add --tokens to the address query to list all ERC-20 token holdings with balances, symbols, and USD values via CoinGecko price resolution. 8. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/exploring-blockchain-data--451745