Anthropic SDK for Python
The Anthropic SDK for Python provides access to the Claude API from Python applications.
Documentation
Full documentation is available at platform.claude.com/docs/en/api/sdks/python.
Installation
pip install anthropic
Upgrading from a 0.x release? See the v1 migration guide.
Getting started
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)
Requirements
Python 3.10+
Contributing
See CONTRIBUTING.md.
License
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.
Metadata
Release files for anthropic 2.5.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| anthropic-2.5.0.tar.gz | 2.0 MB | Without provenance | Details for anthropic-2.5.0.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| anthropic-2.5.0-py3-none-any.whl | Python 3 | none | any | Details for anthropic-2.5.0-py3-none-any.whl |
Total release size: 4.4 MB
Release files / anthropic-2.5.0.tar.gz
| Download URL | anthropic-2.5.0.tar.gz |
|---|---|
| Size | 2.0 MB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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|
|
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Yes |
| Uploaded via |
uv/0.9.13 {"installer":{"name":"uv","version":"0.9.13"},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Ubuntu","version":"26.04","id":"resolute","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":true}
|
Release files / anthropic-2.5.0-py3-none-any.whl
| Download URL | anthropic-2.5.0-py3-none-any.whl |
|---|---|
| Size | 2.4 MB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
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|
|
BLAKE2b-256 checksum How to use checksums |
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Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
uv/0.9.13 {"installer":{"name":"uv","version":"0.9.13"},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Ubuntu","version":"26.04","id":"resolute","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":true}
|
Security for anthropic 2.5.0
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