Top 487 Engineering automation workflows

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Evaluate tool usage accuracy in multi-agent AI workflows using Evaluation nodes

Created by: Angel Menendez || djangelic
Angel Menendez

9 months agoFree

Who's it for This workflow is ideal for AI developers running multi-agent systems in n8n who need to quantitatively evaluate tool usage behavior. If you're building autonomous agents and want to verify their decisions against ground-truth expectations, this workflow gives you plug-and-play observability. What it does This template...
  • +4

Track AI Agent token usage and estimate costs in Google Sheets

Created by: Solomon || solomon
Solomon

9 months agoFree

This n8n template demonstrates how to obtain token usage from AI Agents and places the data into a spreadsheet that calculates the estimated cost of the execution. Obtaining the token usage from AI Agents is tricky, because it doesn't provide all the data from tool calls. This workflow taps into the workflow execution metadata to...
  • +3

AI Orchestrator: dynamically Selects Models Based on Input Type

Created by: Davide Boizza || n3witalia
Davide Boizza

7 months agoFree

This workflow is designed to intelligently route user queries to the most suitable large language model (LLM) based on the type of request received in a chat environment. It uses structured classification and model selection to optimize both performance and cost-efficiency in AI-driven conversations. It dynamically routes requests...
  • +6

Build your own N8N Workflows MCP Server

Created by: Jimleuk || jimleuk
Jimleuk

a year agoFree

This n8n template shows you how to create an MCP server out of your existing n8n workflows. With this, any MCP client connected can get more done with powerful end-to-end workflows rather than just simple tools. Designing agent tools for outcome rather than utility has been a long recommended practice of mine and it applies well w...
  • +3

Build Custom Workflows Automatically with GPT-4o, RAG, and Web Search

Created by: Franz || agents-by-franz
Franz

9 months agoFree

🚀 What the “Agent Builder” template does Need to turn a one-line chat request into a fully-wired n8n workflow template—complete with AI agents, RAG, and web-search super-powers—without lifting a finger? That’s exactly what Agent Builder automates: Listens to any incoming chat message (via the Chat Trigger). Spins up an AI archit...
  • +7

Build an MCP Server with Google Calendar and Custom Functions

Created by: Solomon || solomon
Solomon

a year agoFree

Learn how to build an MCP Server and Client in n8n with official nodes. > ⚠ Requires n8n version 1.88.0 or higher. In this example, we use Google Calendar and custom functions as two separate MCP Servers, demonstrating how to integrate both native and custom tools. How it works The AI Agent connects to two MCP Servers. Each ...
  • +4

Dynamic AI Model Selector with GDPR Compliance via Requesty and Google Sheets

Created by: Stefan || stefan
Stefan

8 months agoFree

Overview This comprehensive n8n workflow provides a sophisticated solution for dynamically selecting and using AI models while maintaining GDPR compliance. It leverages Requesty's European-based AI routing service to ensure data privacy and automatically updates available model options based on real-time API availability. Choose Y...
  • +2

Anthropic AI Agent: Claude Sonnet 4 and Opus 4 with Think and Web Search tool

Created by: Davide Boizza || n3witalia
Davide Boizza

10 months agoFree

This workflow dynamically chooses between two new powerful Anthropic models — Claude Opus 4 and Claude Sonnet 4 — to handle user queries, based on their complexity and nature, maintaining scalability and context awareness with Anthropic web search function and Think tool. Key Advantages 🔁 Dynamic Model Selection Automaticall...
  • +3

Simulate Debates Between AI Agents Using Mistral to Optimize Answers

Created by: Hybroht || hybroht
Hybroht

8 months agoFree

This workflow contains community nodes that are only compatible with the self-hosted version of n8n. AI Arena - Debate of AI Agents to Optimize Answers and Simulate Diverse Scenarios Overview Version: 1.0 The AI Arena Workflow is designed to facilitate a refined answer generation process by enabling a structured debate among m...
  • +1

Natural Language Database Queries with Dual-Agent AI & PostgreSQL Integration

Created by: Paul || diagopl
Paul

9 months agoFree

AI Database Assistant with Smart Query's & PostgreSQL Integration Description: 🚀 Transform Your Database into an Intelligent AI Assistant This workflow creates a smart database assistant that safely handles natural language queries without crashing your system. Features dual-agent architecture with built-in query limits and Po...
  • +5

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