Welcome to the Claude Developer Platform

You now have access to the Claude API. Here's the fastest path to making your first call:

Get your API key

Create your API key in the Claude Console and set it as an environment variable:

export ANTHROPIC_API_KEY='your-api-key-here'

Make your first call

Choose your preferred client—cURL, Python, TypeScript, or Java. This quickstart guide provides example code for you to copy and run immediately.

Explore what's possible

Check out these resources to get the most out of the Claude Developer Platform:

Explore projects that you can easily build upon and customize for your specific needs.

Build on the Claude API using ready-to-copy code snippets that you can integrate into your projects.

Learn with step-by-step lessons on how to build effectively with Claude.