# Quicknode Security Basics

> QuickNode security basics — blockchain RPC and Web3 infrastructure integration. Use when working with QuickNode for blockchain development. Trigger with phrases like "quicknode security basics", "quicknode-security-basics", "blockchain RPC".

- Skill: `gabrielmoreira/quicknode-security-basics` (Agent Skill)
- Install (CLI): `npx skillmds@latest add gabrielmoreira/quicknode-security-basics`
- Raw SKILL.md: https://api.skillmd.com/api/skills/gabrielmoreira/quicknode-security-basics/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Security
- License: MIT
- Author: gabrielmoreira (https://skillmd.com/u/gabrielmoreira)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/gabrielmoreira/quicknode-security-basics

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# QuickNode Security Basics

## Overview

Implementation patterns for QuickNode security basics using blockchain RPC endpoints and the QuickNode SDK.

## Prerequisites

- Completed `quicknode-install-auth` setup

## Instructions

### Step 1: Connect to QuickNode

```typescript
import { ethers } from 'ethers';
const provider = new ethers.JsonRpcProvider(process.env.QUICKNODE_ENDPOINT);
const block = await provider.getBlockNumber();
console.log(`Connected at block ${block}`);
```

## Output

- QuickNode integration for security basics

## Error Handling

| Error | Cause | Solution |
|-------|-------|----------|
| 401 Unauthorized | Invalid endpoint token | Verify URL from Dashboard |
| Rate limited | Too many requests | Implement backoff or upgrade plan |
| Method not found | Add-on required | Enable in QuickNode Dashboard |

## Resources

- [QuickNode Docs](https://www.quicknode.com/docs/welcome)
- [Ethereum API](https://www.quicknode.com/docs/ethereum)

## Next Steps

See related QuickNode skills for more workflows.