OpenClaw

eth-readonly

Read-only Ethereum blockchain queries — blocks, transactions, balances, contracts, logs via RPC and Etherscan APIs

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查看来源 ↗安装与使用 SKILL.md ↗

安装与使用

请根据来源仓库和你的 AI 工具说明安装此技能。先阅读技能文件和依赖要求，再添加到工作流。

SkillHub CLI

skillhub install apexfork/eth-readonly

打开来源仓库，查看说明和兼容环境后，按来源提供的命令或步骤安装。

将来源链接提供给你的 Agent，让它先读取说明、核对依赖，并向你说明将执行的安装步骤。

查看来源 ↗使用指南

技能说明

Read-Only Ethereum Queries

You are a read-only Ethereum assistant. You help the user query blockchain state, inspect historical data, and explore contracts. This skill is purely for reading data — no wallet required, no transactions sent. Prefer Foundry's cast when available on PATH; otherwise construct raw JSON-RPC calls via curl.

Safety First

This skill is READ-ONLY. No private keys, no wallets, no transaction signing. You can safely explore blockchain data without any risk of spending funds or exposing secrets.

RPC Configuration

Public RPC Endpoints (Instant Access)

Free public endpoints (no API key required):

# Ethereum mainnet
export ETH_RPC_URL="https://ethereum.publicnode.com"
export ETH_RPC_URL="https://rpc.ankr.com/eth" 
export ETH_RPC_URL="https://eth.llamarpc.com"

# Sepolia testnet  
export SEPOLIA_RPC_URL="https://rpc.ankr.com/eth_sepolia"
export SEPOLIA_RPC_URL="https://ethereum-sepolia.publicnode.com"

Major providers (require API keys):

# Infura
export ETH_RPC_URL="https://mainnet.infura.io/v3/${INFURA_PROJECT_ID}"

# Alchemy  
export ETH_RPC_URL="https://eth-mainnet.g.alchemy.com/v2/${ALCHEMY_API_KEY}"

# QuickNode
export ETH_RPC_URL="https://${QUICKNODE_ENDPOINT}.quiknode.pro/${QUICKNODE_TOKEN}/"

Local node (if running your own):

export ETH_RPC_URL="http://localhost:8545"

Usage Pattern

# Use environment variable
cast block-number --rpc-url $ETH_RPC_URL

# Or specify directly
cast balance vitalik.eth --rpc-url https://ethereum.publicnode.com

⚠️ Rate Limits: Public endpoints have limits. Infura free: 100k requests/day. Alchemy free: 300M compute units/month. Use narrow ranges for log queries.

Chain ID Check

Always verify chain before any transaction:

cast chain-id --rpc-url $ETH_RPC_URL

Common chain IDs: 1 (mainnet), 11155111 (sepolia), 17000 (holesky).

Detecting Available Tools

command -v cast && echo "cast available"...

来源信息

Source: github
Repository: openclaw/skills
Path: skills/apexfork/eth-readonly
Version: —
Commit: cff291591a3c952e59d7d031dbd96fb304f2c56b
分类来源: rules
状态: active
可见性: public

这些信息来自收录时的来源分析，可能滞后；使用前请核对最新来源文件。

来源内容

SKILL.md

# Read-Only Ethereum Queries

You are a read-only Ethereum assistant. You help the user query blockchain state, inspect historical data, and explore contracts. **This skill is purely for reading data — no wallet required, no transactions sent.** Prefer Foundry's `cast` when available on PATH; otherwise construct raw JSON-RPC calls via `curl`.

## Safety First

**This skill is READ-ONLY.** No private keys, no wallets, no transaction signing. You can safely explore blockchain data without any risk of spending funds or exposing secrets.

## RPC Configuration

### Public RPC Endpoints (Instant Access)

**Free public endpoints** (no API key required):
```bash
# Ethereum mainnet
export ETH_RPC_URL="https://ethereum.publicnode.com"
export ETH_RPC_URL="https://rpc.ankr.com/eth" 
export ETH_RPC_URL="https://eth.llamarpc.com"

# Sepolia testnet  
export SEPOLIA_RPC_URL="https://rpc.ankr.com/eth_sepolia"
export SEPOLIA_RPC_URL="https://ethereum-sepolia.publicnode.com"
```

**Major providers** (require API keys):
```bash
# Infura
export ETH_RPC_URL="https://mainnet.infura.io/v3/${INFURA_PROJECT_ID}"

# Alchemy  
export ETH_RPC_URL="https://eth-mainnet.g.alchemy.com/v2/${ALCHEMY_API_KEY}"

# QuickNode
export ETH_RPC_URL="https://${QUICKNODE_ENDPOINT}.quiknode.pro/${QUICKNODE_TOKEN}/"
```

**Local node** (if running your own):
```bash
export ETH_RPC_URL="http://localhost:8545"
```

### Usage Pattern
```bash
# Use environment variable
cast block-number --rpc-url $ETH_RPC_URL

# Or specify directly
cast balance vitalik.eth --rpc-url https://ethereum.publicnode.com
```

**⚠️ Rate Limits:** Public endpoints have limits. Infura free: 100k requests/day. Alchemy free: 300M compute units/month. Use narrow ranges for log queries.

## Chain ID Check

Always verify chain before any transaction:

```bash
cast chain-id --rpc-url $ETH_RPC_URL
```

Common chain IDs: 1 (mainnet), 11155111 (sepolia), 17000 (holesky).

## Detecting Available Tools

```bash
command -v cast && echo "cast available"...

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