Environment Variables

NotPixel SDK automatically reads configuration from environment variables. This allows you to configure the SDK without changing code.

SDK Configuration

Variable	Type	Default	Description
`NOTPIXEL_BASE_URL`	string	`https://api.notpixel.ai`	API base URL
`NOTPIXEL_TIMEOUT_MS`	number	`1500`	Request timeout in milliseconds
`NOTPIXEL_RETRIES`	number	`0`	Number of retries for failed requests
`NOTPIXEL_MIN_SCORE`	number	`0.35`	Minimum relevance score for ads
`NOTPIXEL_MODEL`	string	—	Default LLM model
`NOTPIXEL_LOCALE`	string	`pt`	Default locale for ads
`NOTPIXEL_MOCK`	boolean	`false`	Enable mock mode (`1` or `true`)
`NOTPIXEL_LOG`	boolean	`false`	Enable debug logging (`1` or `true`)

LLM Provider API Keys

Configure API keys for the LLM providers you want to use:

Variable	Provider
`OPENAI_API_KEY`	OpenAI
`ANTHROPIC_API_KEY`	Anthropic
`GOOGLE_API_KEY`	Google Gemini
`GITHUB_TOKEN`	GitHub Models
`DEEPSEEK_API_KEY`	DeepSeek
`GROQ_API_KEY`	Groq
`MISTRAL_API_KEY`	Mistral
`XAI_API_KEY`	xAI Grok
`DASHSCOPE_API_KEY`	Alibaba DashScope
`LLAMA_API_KEY`	Meta Llama
`MINIMAX_API_KEY`	Minimax
`NVIDIA_API_KEY`	Nvidia Build
`PERPLEXITY_API_KEY`	Perplexity
`TOGETHER_API_KEY`	Together AI
`OPENROUTER_API_KEY`	OpenRouter
`VERCEL_API_KEY`	Vercel
`NETLIFY_API_KEY`	Netlify

You only need to configure API keys for the providers you want to use. The SDK auto-detects which keys are available.

Example `.env` File

.env


# NotPixel Configuration
NOTPIXEL_MIN_SCORE=0.35
NOTPIXEL_TIMEOUT_MS=2000
NOTPIXEL_MODEL=openai/gpt-5.2
 
# LLM Provider Keys (add the ones you use)
OPENAI_API_KEY=sk-...
ANTHROPIC_API_KEY=sk-ant-...
GOOGLE_API_KEY=AI...

Development Environment

For development, enable mock mode to avoid API calls:

.env.development


NOTPIXEL_MOCK=1
NOTPIXEL_LOG=1

Overriding at Runtime

Environment variables can be overridden when initializing the SDK:


import Ads from 'notpixel';
 
const ads = new Ads({
  publisherId: 'pub_10565',
  model: 'anthropic/claude-opus-4.5',
  input: 'Draft a launch checklist for a mobile app release.',
  // These override environment variables
  timeoutMs: 3000,
  minContextScore: 0.5,
});

Priority Order

Configuration is applied in this order (later overrides earlier):

Default values (built into SDK)
Environment variables
Constructor options


// NOTPIXEL_TIMEOUT_MS=2000 in .env
 
const ads = new Ads({
  publisherId: 'pub_10565',
  model: 'openai/gpt-5.2',
  input: 'Compare observability tools for a backend team.',
  timeoutMs: 3000, // This wins - 3000ms used
});

Next.js Configuration

For Next.js projects, add variables to your .env.local:

.env.local


NOTPIXEL_MIN_SCORE=0.35
OPENAI_API_KEY=sk-...

Never commit API keys to version control. Add .env.local to your .gitignore.

Vercel Deployment

When deploying to Vercel, add environment variables in your project settings:

Go to your project in Vercel
Navigate to Settings → Environment Variables
Add each variable with its value
Select which environments need the variable (Production, Preview, Development)