n8n
n8n Postgres Tutorial: Connect, Query, and Automate (2026)
Connect n8n to PostgreSQL step by step: create credentials, run Execute Query, insert, select, and update rows, and fix the five most common connection errors.
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n8n Docker Compose Setup: Self-Hosting with Postgres and Queue Mode (2026)
Set up n8n with Docker Compose, Postgres, and queue mode with Redis workers. Complete compose file, .env template, safe upgrades, backups, and five real fixes.
n8n
How to Install n8n on Ubuntu VPS (2026): Docker Compose, Postgres & Free HTTPS
Install n8n on an Ubuntu VPS with Docker Compose, Postgres 18, and free HTTPS via Caddy. Verified against n8n 2.40.7, including the new npm deprecation warning and four real-world fixes.
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n8n vs Make for AI Agents: Which One Should You Build On?
n8n vs Make for AI agents, compared head-to-head: verified builds, per-execution vs per-operation pricing math, and model freedom. Pick the right one.
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n8n Vector Store Tutorial: Store and Retrieve Embeddings with Pinecone and Qdrant
Connect a vector database to n8n: insert documents into Pinecone or Qdrant with the Vector Store node, match embedding dimensions, and let an AI agent retrieve your own documents. Verified against n8n 2.40.7's node definitions and Pinecone's official n8n skill.
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n8n AI Agent Tutorial: Build Your First AI Agent with Tools and Memory
Build a working AI agent in n8n: connect a chat model, tools, and memory to the AI Agent node. Tested on n8n 2.40.7 with real node parameters, plus troubleshooting for the 5 most common failures.
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How to Migrate from Zapier to n8n
How to migrate from Zapier to n8n: export Zaps, map triggers and actions to n8n nodes, rebuild a real Gmail-to-Trello workflow, and compare costs.
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n8n Error Handling Tutorial: Retries, Error Outputs & Error Workflows
n8n error handling tutorial: master retries, per-node error outputs, and a global Error Trigger workflow with a hands-on failing-API example.