Chain Analyst

Agent skill for reproducible EVM blockchain analysis — decode transactions, query contract state, trace token flows, and fetch ABIs/prices across any EVM network.

Install

npx skills add lutr0/chain-analyst

What it does

Gives your AI agent six shell scripts that cover the most common onchain analysis tasks:

Script	Purpose
analyze-tx.sh	Full transaction breakdown — fetches tx, logs, traces, and ABIs in one shot
hypersync-query.sh	Paginated historical queries over logs, traces, and transactions via HyperSync
query-contract.sh	Read current contract state via RPC (falls back through curl, cast, viem)
get-contract-abi.sh	Fetch verified ABI from Etherscan (unified V2 multichain endpoint)
get-token-price.sh	Current or historical token price from CoinGecko
multicall.sh	Batch multiple contract reads in a single RPC call via viem multicall

Setup

Copy .env.example to .env and fill in your keys:

HYPERSYNC_API_TOKEN=       # required — https://envio.dev
ETHERSCAN_API_KEY=         # required — https://etherscan.io/apidashboard
COINGECKO_API_KEY=         # optional — https://www.coingecko.com/en/api/pricing

License

MIT