Tools & Resources

API

Also known as: Application Programming Interface, Web API, REST API

Application Programming Interface—a set of rules allowing software systems to communicate, enabling developers to access AI capabilities programmatically.

APIs let software systems communicate with each other, enabling developers to integrate AI capabilities into applications without building models themselves.

How It Works

  1. Developer sends request to API endpoint
  2. Server processes request (e.g., runs AI model)
  3. Server returns response (e.g., generated text)
  4. Developer’s app uses the response

AI API Examples

ProviderWhat It Does
OpenAIGPT models, DALL-E, Whisper
AnthropicClaude models
GoogleGemini, Vision AI
Stability AIImage generation
ElevenLabsVoice synthesis

Key Concepts

  • Endpoint: URL where requests are sent
  • Authentication: API keys verify access
  • Rate limits: Requests per minute/day
  • Pricing: Usually per token or request
  • Latency: Response time

Why APIs Matter

APIs democratize AI access—you don’t need massive compute or ML expertise. Just send a request, get intelligence back. This powers the explosion of AI-integrated applications.