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What is This Guide?

This guide shows you three main ways to use your API Key with Model Router:
  1. Direct API Requests: Make HTTP requests directly using cURL or any HTTP client
  2. Minimal MVP Examples: Simple, ready-to-run code examples in popular programming languages
  3. AI Application Integrations: Connect Model Router to existing AI tools like Claude Code or Codex CLI

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Before You Start

Before making any API calls, make sure you know which models are available to your API key. Check the List Available Models guide first.

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Three Ways to Use Your API Key

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1. Direct API Requests

If you want to make requests directly using HTTP tools like cURL, Postman, or any HTTP client, this is the simplest approach. Best for: Quick testing, automation scripts, or when you need full control over the request Learn more: Direct API Requests

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2. Minimal MVP Examples

Ready-to-run code examples in Python, Node.js, and TypeScript that you can copy and use immediately. Best for: Building your own application, learning how to integrate Model Router, or prototyping Learn more: Minimal MVP Examples

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3. AI Application Integrations

Connect Model Router to existing AI development tools without writing code. Best for: Using AI tools like Claude Code or Codex CLI with Model Router Learn more: AI Application Integrations

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Quick Start Checklist

  1. ✅ Create an API Key
  2. ✅ Check Available Models
  3. ✅ Choose one of the three methods above
  4. ✅ Make your first API call
  5. ✅ View Your Usage