Send automated emails with n8n: SMTP, Gmail, and templates

Set up Gmail SMTP credentials, build HTML templates with dynamic data, and wire the Send Email node into any n8n workflow.

Add AI to your Zapier workflows: a practical 2026 guide

Two built-in ways to add AI steps to any Zap -- AI by Zapier (no API key needed) and the ChatGPT integration -- with task cost breakdown, action types, and four practical workflow patterns.

Per-node n8n execution debugging with Claude: patterns and pitfalls

Three silent n8n execution failures -- Filter node drops, missing AI Agent Chat Model, and inactive webhook -- plus how to use Claude and the n8n MCP to diagnose them in plain language.

Make scenario won't trigger: 7-step webhook diagnosis

Seven sequential checks to diagnose a Make scenario that won't run: covers webhooks, polling triggers, incomplete executions queue, scheduling, and timezone issues.

How to fix n8n OAuth callback URL returning 401

Three causes of the n8n OAuth callback 401 and the exact fixes: WEBHOOK_URL mismatch, stale credentials after a domain change, and X (Twitter) OAuth1/OAuth2 endpoint confusion.

Cursor: fix 'Waiting for extension host' hang

The 'Waiting for extension host' hang blocks Cursor's AI agent and extensions. Four fixes in order of effort: restart the host, disable extensions, wipe the state database, or update Cursor.

Claude Code pricing explained: plans, token costs, and limits (2026)

Claude Code has no free tier. Pro starts at $20/month with a 5-hour rolling window, Max gives 5x-20x more usage, and the API lets you skip the subscription entirely - here's the full breakdown.

n8n Loop node only processes the first item: how to fix it

The Loop Over Items node only processes one batch when processing nodes aren't wired back to its input. Here's the exact fix, plus the Merge node pattern for conditional branches.

Best no-code AI agent builders for 2026

Seven no-code AI agent platforms compared: n8n (self-hosted, unlimited), Relevance AI (multi-agent), Lindy (non-technical teams), Zapier Agents (6,000+ integrations), Botpress (best free tier), Voiceflow (conversational), and Make.

How to fix n8n webhook not firing (test URL vs production URL gotcha)

n8n has two webhook URLs: test (/webhook-test/) and production (/webhook/). Using the wrong one for your mode causes silent failures. Here is how to check which URL your integration is calling and how to fix it.