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base

Query Base blockchain data with USD pricing for wallets, tokens, and transactions.

1|Updated Apr 14, 2026
Search Tags:#blockchain#base#gas analysis#wallet portfolio#token price#web3 rpc#transaction inspection
One-click install
npx skills add https://github.com/eddielueng/hermes-agent-zh --skill base-eddielueng
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: base
Source: https://github.com/eddielueng/hermes-agent-zh/tree/main/optional-skills/blockchain/base
Command: npx skills add https://github.com/eddielueng/hermes-agent-zh --skill base-eddielueng

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill reduces the effort required to investigate Base (Ethereum L2) wallets, tokens, transactions, and network conditions by giving you enriched, human-readable results with USD context.

Core Features & Use Cases

  • Wallet portfolio & token holdings: Fetch ETH balances and balances for well-known Base tokens, optionally enriched with CoinGecko USD prices.
  • Transaction inspection: Decode transaction receipts to summarize value, fees, status, and ERC-20 transfer events (and ERC-721 tokenIds when present).
  • Token & contract analysis: Retrieve ERC-20 metadata (name/symbol/decimals/supply) and inspect addresses for contract type and interface support.
  • Gas analysis & whale detection: Provide L2 gas cost estimates with L1 data-fee context and scan the latest block for large ETH transfers.
  • Use cases: Answer questions like “What’s the value of this Base wallet?” “What happened in this transaction hash?” “What is the price/market cap of USDC or any known symbol?” or “How expensive is a Base ERC-20 transfer right now?”

Quick Start

Tell the agent: “Check the Base wallet portfolio for 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 and return balances with USD values.”

Frequently Asked Questions about base

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

FAQPage Schema
How do I check a Base wallet portfolio with USD values?▼

To check a Base wallet portfolio with USD values, query the wallet address to fetch ETH and well-known Base token balances, which are then enriched with USD pricing from CoinGecko. This provides a complete portfolio valuation for any Base L2 address.

How do I inspect a Base transaction hash and decode ERC-20 transfers?▼

Inspecting a Base transaction hash decodes the transaction receipt to summarize value, gas fees, status, and ERC-20 transfer events. It also detects ERC-721 tokenIds when present, providing a comprehensive transaction audit.

Can I estimate Base gas costs including L1 data fees?▼

Yes, you can estimate Base gas costs by retrieving L2 gas cost estimates alongside L1 data-fee context. This calculates the total operational gas estimation required for executing transactions on the Base network.

Do I need an API key to get Base token prices?▼

No, you do not need an API key to get Base token prices. The Skill uses CoinGecko free token and ETH price endpoints to retrieve market cap and pricing data, automatically handling rate-limit retries.

What is the best way to detect whale transfers on the Base network?▼

The best way to detect whale transfers on the Base network is by scanning the latest block for large ETH transfers. This identifies significant whale movement and provides immediate visibility into high-value on-chain activity.

How do I retrieve ERC-20 metadata and detect contract interfaces on Base?▼

To retrieve ERC-20 metadata and detect contract interfaces on Base, provide the contract address to query name, symbol, decimals, and supply. The Skill also inspects addresses for specific contract types and interface support.

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