🚀 OpenRouter API Setup Guide (Beginner Friendly)

Access multiple AI models using one single API key — without paying separately for each platform.

This step-by-step guide will help you create, connect, and use OpenRouter inside n8n easily, even if you are a complete beginner.

Perfect for automation builders, no-code developers, and AI workflow creators.

✅ What is OpenRouter?

OpenRouter is a unified AI platform that gives you access to:

• GPT-4 / GPT-4 Turbo
• Claude 3 (Opus, Sonnet, Haiku)
• Gemini Pro
• Mistral
• DeepSeek
• Many open-source models

All through one API key.

No need to manage multiple AI accounts anymore.

📘 What You’ll Learn in This Guide

• What OpenRouter is and how it works
• How to create a free OpenRouter account
• How to generate your API key safely
• How to connect OpenRouter with n8n HTTP Request node
• Correct headers & body configuration
• Common setup mistakes and how to fix them

⚙️ What’s Included

• ✅ Complete PDF setup guide
• ✅ Step-by-step screenshots
• ✅ n8n HTTP Request configuration
• ✅ Ready-to-use API request format
• ✅ Beginner friendly explanation
• ✅ Model selection tips
• ✅ Error fixing section

🤖 Perfect For

• n8n automation builders
• AI agent creators
• No-code developers
• Instagram automation creators
• SaaS founders
• Workflow sellers
• Beginners learning AI APIs

🔥 Why Use OpenRouter?

• One API → many AI models
• Lower cost than buying each AI separately
• Easy model switching
• Works perfectly with n8n
• Supports advanced reasoning models
• Ideal for AI agents and workflows

🧠 Use Cases

• AI chatbots
• WhatsApp automation
• Instagram DM bots
• Content generation workflows
• Lead qualification agents
• Customer support automation
• AI decision-making workflows

📌 Requirements

• n8n (cloud or self-hosted)
• OpenRouter account (free)
• Basic knowledge of HTTP requests

🎁 Bonus (Optional – if you included)

• Example prompts
• Sample n8n workflow
• Model comparison chart

⚠️ Disclaimer

This guide is for educational purposes only.
OpenRouter and all AI models belong to their respective owners.