# N8n Integration Testing Patterns

API contract testing, authentication flows, rate limit handling, and error scenario...

- Repository: https://github.com/proffesor-for-testing/agentic-qe (521 stars)
- Category: Testing
- License: MIT
- Last updated: 2026-11-01
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add proffesor-for-testing/agentic-qe --skill n8n-integration-testing-patterns -g -a claude-code -y`
Codex: `npx skills add proffesor-for-testing/agentic-qe --skill n8n-integration-testing-patterns -g -a codex -y`
Cursor: `npx skills add proffesor-for-testing/agentic-qe --skill n8n-integration-testing-patterns -g -a cursor -y`
Gemini CLI: `npx skills add proffesor-for-testing/agentic-qe --skill n8n-integration-testing-patterns -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add proffesor-for-testing/agentic-qe`

## Description

API contract testing, authentication flows, rate limit handling, and error scenario coverage for n8n integrations with external services. Use when testing n8n node integrations.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# n8n Integration Testing Patterns

<default_to_action>
When testing n8n integrations:
1. VERIFY connectivity and authentication
2. TEST all configured operations
3. VALIDATE API response handling
4. CHECK rate limit behavior
5. CONFIRM error handling works

**Quick Integration Checklist:**
- Credentials valid and not expired
- API permissions sufficient for operations
- Rate limits understood and respected
- Error responses properly handled
- Data formats match API expectations

**Critical Success Factors:**
- Test in isolation before workflow integration
- Verify OAuth token refresh works
- Check API version compatibility
- Monitor rate limit headers
</default_to_action>

## Quick Reference Card

### Common n8n Integrations

| Category | Services | Auth Type |
|----------|----------|-----------|
| **Communication** | Slack, Teams, Discord | OAuth2, Webhook |
| **Data Storage** | Google Sheets, Airtable | OAuth2, API Key |
| **CRM** | Salesforce, HubSpot | OAuth2 |
| **Dev Tools** | GitHub, Jira, Linear | OAuth2, API Key |
| **Marketing** | Mailchimp, SendGrid | API Key |

### Authentication Types

| Type | Setup | Refresh |
|------|-------|---------|
| **OAuth2** | User authorization flow | Automatic token refresh |
| **API Key** | Manual key entry | Manual rotation |
| **Basic Auth** | Username/password | No refresh needed |
| **Header Auth** | Custom header | Manual rotation |

---

## Connectivity Testing

```typescript
// Test integration connectivity
async function testIntegrationConnectivity(nodeName: string): Promise<ConnectivityResult> {
  const node = await getNodeConfig(nodeName);

  // Check credential exists
  if (!node.credentials) {
    return { connected: false, error: 'No credentials configured' };
  }

The rest: https://github.com/proffesor-for-testing/agentic-qe/blob/HEAD/.claude/skills/n8n-integration-testing-patterns/SKILL.md