API

The complete OpenAI API tutorial

The OpenAI API is the unified entry point for calling GPT-5.6, o-series, GPT Image 2, and GPT-Realtime. This channel takes you from account setup and your first request through real-world Responses API patterns in the Python and Node SDKs, streaming, function calling, error handling, and billing — from zero to production in a week.

Account & API keyPython / Node first callResponses APIStreamingFunction CallingErrors & billing

1 article(s) total

API

2026-07-124 min

OpenAI API Beginner: Your First GPT-5.6 Call Explained

From account creation and API Key retrieval to your first Responses API call in Python and Node.js — a complete beginner's path to the OpenAI API.

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