OpenRouter

OpenRouter is a unified API gateway that provides access to 100+ AI models from multiple providers through a single API key.

Setup

1. Get API Key

Go to OpenRouter
Create an account or sign in
Navigate to Keys in your dashboard
Create a new API key

2. Configure Environment

.env


OPENROUTER_API_KEY=sk-or-...

Usage


import Ads from 'notpixel';
 
const ads = new Ads({
  publisherId: 'pub-xxx',
  model: 'openrouter/anthropic/claude-opus-4.5',
});
 
const response = await ads.offer({
  userText: 'Explain quantum computing',
});

Model Format

OpenRouter models use the format openrouter/{provider}/{model}:


// Anthropic via OpenRouter
model: 'openrouter/anthropic/claude-opus-4.5'
 
// Meta via OpenRouter
model: 'openrouter/meta-llama/llama-3-70b-instruct'
 
// Mistral via OpenRouter
model: 'openrouter/mistralai/mixtral-8x7b-instruct'

Popular Models

Model	Provider	Description
`anthropic/claude-opus-4.5`	Anthropic	Most capable Claude
`anthropic/claude-3-sonnet`	Anthropic	Balanced performance
`meta-llama/llama-3-70b-instruct`	Meta	Open source, high performance
`mistralai/mixtral-8x7b-instruct`	Mistral	Fast MoE model
`google/gemini-pro`	Google	Google’s Gemini

OpenRouter provides automatic fallbacks. If one provider is down, requests are routed to another compatible model.

Why Use OpenRouter?

Single API key for 100+ models
Automatic fallbacks between providers
Pay-as-you-go pricing
No rate limits on most models
Usage tracking across all models

Environment Variable

Variable	Description
`OPENROUTER_API_KEY`	Your OpenRouter API key