quicknode-hello-world
QuickNode hello world — blockchain RPC and Web3 infrastructure integration. Use when working with QuickNode for blockchain development. Trigger with phrases like "quicknode hello world", "quicknode-hello-world", "blockchain RPC".
Best use case
quicknode-hello-world is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
QuickNode hello world — blockchain RPC and Web3 infrastructure integration. Use when working with QuickNode for blockchain development. Trigger with phrases like "quicknode hello world", "quicknode-hello-world", "blockchain RPC".
Teams using quicknode-hello-world should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/quicknode-hello-world/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How quicknode-hello-world Compares
| Feature / Agent | quicknode-hello-world | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
QuickNode hello world — blockchain RPC and Web3 infrastructure integration. Use when working with QuickNode for blockchain development. Trigger with phrases like "quicknode hello world", "quicknode-hello-world", "blockchain RPC".
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
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SKILL.md Source
# QuickNode Hello World
## Overview
Make your first blockchain queries: get block number, check ETH balance, read a smart contract.
## Prerequisites
- Completed `quicknode-install-auth` with endpoint URL
## Instructions
### Step 1: Get Block Number
```typescript
import { ethers } from 'ethers';
const provider = new ethers.JsonRpcProvider(process.env.QUICKNODE_ENDPOINT);
const blockNumber = await provider.getBlockNumber();
console.log(`Current block: ${blockNumber}`);
```
### Step 2: Check ETH Balance
```typescript
const address = '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045'; // vitalik.eth
const balance = await provider.getBalance(address);
console.log(`Balance: ${ethers.formatEther(balance)} ETH`);
```
### Step 3: Read Smart Contract (ERC-20 Token)
```typescript
const usdcAddress = '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48';
const abi = ['function balanceOf(address) view returns (uint256)', 'function decimals() view returns (uint8)'];
const usdc = new ethers.Contract(usdcAddress, abi, provider);
const decimals = await usdc.decimals();
const balance = await usdc.balanceOf(address);
console.log(`USDC balance: ${ethers.formatUnits(balance, decimals)}`);
```
### Step 4: Get Transaction Receipt
```typescript
const txHash = '0xabc...'; // Any transaction hash
const receipt = await provider.getTransactionReceipt(txHash);
console.log(`Status: ${receipt?.status === 1 ? 'Success' : 'Failed'}`);
console.log(`Gas used: ${receipt?.gasUsed.toString()}`);
```
## Output
- Block number retrieved
- ETH balance checked
- ERC-20 contract read
- Transaction receipt fetched
## Error Handling
| Error | Cause | Solution |
|-------|-------|----------|
| `null` receipt | TX pending or invalid hash | Wait for confirmation or verify hash |
| `call revert exception` | Wrong ABI or address | Verify contract address and ABI |
| Balance is 0n | Address has no ETH | Try a known address like vitalik.eth |
## Resources
- [QuickNode Ethereum API](https://www.quicknode.com/docs/ethereum)
- [ethers.js Documentation](https://docs.ethers.org/)
## Next Steps
Build transaction workflows: `quicknode-core-workflow-a`Related Skills
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