evm

Query balances, transaction history, and contract data across eight EVM blockchains.

Updated Jul 13, 2026
One-click install
npx skills add https://github.com/zangjeicy/Hermes --skill evm-zangjeicy
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: evm
Source: https://github.com/zangjeicy/Hermes/tree/main/optional-skills/blockchain/evm
Command: npx skills add https://github.com/zangjeicy/Hermes --skill evm-zangjeicy

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This skill eliminates the need to manually navigate multiple block explorers or use complex web interfaces to track assets, verify transactions, or monitor network health across various EVM-compatible blockchains.

Core Features & Use Cases

  • Multi-Chain Portfolio Tracking: Instantly view wallet balances and ERC-20 token holdings across Ethereum, Base, Arbitrum, and five other major chains.
  • Security & Inspection: Quickly check for dangerous token approvals or inspect smart contract bytecode to identify potential risks.
  • Use Case: A user wants to compare gas fees across all supported networks to find the cheapest chain for a transaction or verify if a specific wallet address has granted excessive permissions to a contract.

Quick Start

Use the evm skill to check the portfolio balance of the wallet address 0xd8da6bf26964af9d7eed9e03e53415d37aa96045 on the Ethereum network.

Frequently Asked Questions about evm

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I check wallet balances and ERC-20 token holdings across multiple EVM blockchains?

You can query wallet balances and ERC-20 token holdings across eight EVM-compatible blockchains by using a command-line interface that performs JSON-RPC requests to public nodes. This enables instant multi-chain portfolio tracking across networks like Ethereum, Base, and Arbitrum without requiring external API keys.

What is the best way to compare gas fees across EVM-compatible chains like Arbitrum and Base?

The best way to compare gas fees across EVM-compatible chains like Arbitrum and Base is to use a multi-chain querying tool that connects to public blockchain nodes. It retrieves current network fee data across all eight supported chains, helping you find the cheapest network for your transaction.

How can I audit smart contract approvals to find dangerous token permissions?

You can audit smart contract approvals to find dangerous token permissions by querying a specific wallet address via command-line. The tool inspects contract interactions and token approvals across eight EVM networks to identify excessive permissions and potential security risks.

Do I need an external API key to query Ethereum transaction history and contract data?

No, you do not need an external API key to query Ethereum transaction history and contract data. The querying process utilizes standard Python libraries to perform direct JSON-RPC requests to public blockchain nodes, eliminating the need for paid or private API services.

Can I inspect smart contract bytecode for security risks without using a web block explorer?

Yes, you can inspect smart contract bytecode for security risks without using a web block explorer. A command-line interface can retrieve and display contract data directly from public nodes, allowing you to verify code and identify potential risks locally across eight supported chains.