The Anthropic SDK for Python provides access to the Claude API from Python applications.
Full documentation is available at platform.claude.com/docs/en/api/sdks/python.
pip install anthropic
Upgrading from a 0.x release? See the v1 migration guide.
import os from anthropic import Anthropic client = Anthropic( api_key=os.environ.get("ANTHROPIC_API_KEY"), # This is the default and can be omitted ) message = client.messages.create( max_tokens=1024, messages=[ { "role": "user", "content": "Hello, Claude", } ], model="claude-opus-5-5", ) print(message.content)
Python 3.10+
See CONTRIBUTING.md.
This project is licensed under the Apache License, Version 2.0. See the LICENSE file for details. Versions released before the change from the MIT License, and third-party contributions merged before it, remain under the MIT License. See LICENSE-MIT.