Audit connected integrations and email pricing & limits report with n8n API, Claude and Gmail

How it works

• Connects to your n8n instance via API and fetches all credentials you have set up
• Maps each credential type to its real service name (supports 40+ services: OpenAI, Slack, Notion, Airtable, Google, Stripe, and more)
• Sends the full list to Claude AI, which researches current pricing tiers, free limits, and API rate limits for every service
• Builds a colour-coded HTML email report sorted by tier: 🟢 Free · 🟡 Freemium · 🔴 Paid only
• Includes: free quota, paid plan starting price, API rate limit, and key notes for each service

Set up steps

• Create an HTTP Header Auth credential named n8n API Key — Header Name: X-N8N-API-KEY, Header Value: your n8n API key (Settings → API → Create API Key)
• Connect your Anthropic account credential for Claude AI pricing research
• Connect your Gmail OAuth2 credential for the report email
• Open the Configuration node and set your n8n instance URL and notification email address
• Run manually or add a Schedule trigger for automated weekly reports