Guide

Get started with Claude

Anthropic · platform.claude.com

The same steps for Anthropic's API, if you want a Claude key as well.

Open on platform.claude.com ↗

The question it answers

  1. How do I get an API key for OpenAI or Gemini?

Read with it

  1. Google's steps to create a key in AI Studio, what happens for new and existing Cloud users, and how to keep it safe. ai.google.dev Guide Using Gemini API keys Google
  2. The free and paid tiers by model: Gemini 3.8 Flash is free on the free tier ($0.75 / $3.75 per million tokens paid until 31... ai.google.dev Tool Gemini Developer API pricing Google
  3. OpenAI's first steps: create an API key in the dashboard, export it as an environment variable and make your first call. developers.openai.com Guide Developer quickstart OpenAI
  4. Which kind of key to use for your own testing, a deployed app or automation, and why one developer's key should not run... developers.openai.com Guide API keys and service accounts OpenAI
  5. Pro plans include $100, $200 or $500 of API credits a month and Business seats $20 or $100, claimed by linking the subscription... developers.openai.com Guide API credits for ChatGPT subscribers OpenAI
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