What happens if I try to query a chain not supported by the free tier?

The skill will identify if a requested chain (like Base or BSC) requires a paid Etherscan plan and will inform you of the limitation before attempting the query.

Can I check balances for multiple addresses at once?

Absolutely. The skill supports multi-address queries for up to 20 different wallet addresses in a single API call for efficient data retrieval.

Does this skill support networks like Polygon and Arbitrum?

Yes, it utilizes Etherscan V2's unified API which supports various EVM-compatible chains including Polygon, Arbitrum One, Scroll, and zkSync using the chainid parameter.

How does the skill handle token decimals?

The skill includes logic to convert balances from the smallest unit (Wei) into human-readable formats based on the specific decimals of the token, such as 18 for ETH or 6 for USDC.

Do I need an API key to use the Etherscan skill?

Yes, you must have a valid Etherscan API key set as the ETHERSCAN_API_KEY environment variable for the skill to function.

Etherscan Blockchain Data

Name: Etherscan Blockchain Data
Author: sablier-labs

bysablier-labs

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API開発

Queries blockchain balances and token holdings across multiple EVM-compatible networks using Etherscan's unified V2 API.

概要

This skill enables Claude to interact directly with Etherscan's V2 API to retrieve real-time native ETH and ERC-20 token balances. It features intelligent chain inference to automatically detect networks like Polygon, Arbitrum, and Scroll based on user prompts, avoiding the common pitfall of defaulting to Ethereum Mainnet. Designed for developers and crypto-native users, it provides seamless wallet audits, multi-address queries, and automatic unit conversion from Wei to human-readable formats directly within the terminal.

主な機能

5 GitHub stars
Real-time native ETH and ERC-20 token balance lookups
Intelligent chain inference based on tokens, names, and address patterns
Automatic Wei-to-ETH and token decimal unit conversion
Multi-address query capability for up to 20 wallets simultaneously
Unified multi-chain support via Etherscan V2 API parameters

ユースケース

Automating financial reporting and portfolio snapshots via CLI
Verifying contract deployments and token distributions during development
Auditing wallet holdings and token balances across multiple EVM chains

概要

主な機能

5 GitHub stars
Real-time native ETH and ERC-20 token balance lookups
Intelligent chain inference based on tokens, names, and address patterns
Automatic Wei-to-ETH and token decimal unit conversion
Multi-address query capability for up to 20 wallets simultaneously
Unified multi-chain support via Etherscan V2 API parameters

ユースケース

Automating financial reporting and portfolio snapshots via CLI
Verifying contract deployments and token distributions during development
Auditing wallet holdings and token balances across multiple EVM chains