n8n
How to Use a Custom LLM Provider with Self-Hosted n8n Assistant
Connect a custom LLM provider to self-hosted n8n Assistant via an OpenAI-compatible endpoint, switch models safely, and control costs.
N8n
n8n
How to Add Human Approval to n8n Agent Builder Tools
Learn how to add human-in-the-loop approval to n8n Agent Builder tools, test gated actions in a draft Preview run, and publish only after approvals behave.
n8n
Migrate Your n8n Notion Workflow to the v3 Node Data Source Model: A Step-by-Step Fix
Migrate n8n Notion workflows to the v3 node data source model: swap database IDs for data source IDs, fix every operation and the trigger, and test safely.
AI Tools
How to Re-Enable Expression Spans in n8n 2.43.8
Upgraded to n8n 2.43.8 and lost expression.evaluate spans? Set one variable, restart every instance, and verify the spans return to your tracing backend.
n8n
Fix n8n Wait Node Resume URL 401: Why the Signature Is Required and How to Pass It Through
Fix the n8n Wait node 401 on resume URLs: why the webhook-waiting signature is required, how to forward $execution.resumeUrl intact, and how to patch it.
AI Tools
Fix n8n Slack Trigger 401: Add the Signing Secret for n8n 3.0
Fix the n8n Slack Trigger 401 by adding your Slack app signing secret to the n8n credential before the n8n 3.0 upgrade, then re-verify the webhook.
AI Tools
How to Re-Enable Chat Hub in n8n 3.0: Restore the Chat Section After Upgrade
n8n 3.0 turns off Chat Hub by default. Re-enable it with N8N_ENABLED_MODULES, verify the Chat section returns, and plan migration before n8n 4.0 removes it.
n8n
How to Harden Self-Hosted n8n for Teams After the October 2026 Security Advisories
Harden a shared self-hosted n8n instance after the October 2026 advisories: patch to 2.44.1, scope credentials by project, and lock nodes, files, and API keys.
n8n
How to Enable n8n OpenTelemetry Tracing: Workflow Spans, Node Spans, and Slow-Node Debugging
Enable native n8n OpenTelemetry tracing: set two environment variables or use Settings > OpenTelemetry, send spans to Jaeger or Grafana, and find slow nodes.
n8n
Generate Images with n8n and Gemini Nano Banana
Build an n8n workflow that generates product and social images with Google Gemini Nano Banana 2.1, including cost math, retries, and Google Drive delivery.