Claude API

What official Anthropic SDKs are available?

Last verified: July 2026 · 2 min read
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Anthropic officially maintains two developer libraries: the Python SDK (package: 'anthropic') and the TypeScript/JavaScript SDK (package: '@anthropic-ai/sdk').

Official Libraries

  • Python Library: Install via pip install anthropic.
  • TypeScript/JavaScript Library: Install via npm install @anthropic-ai/sdk.

Both packages support auto-generated TypeScript definition types, synchronous and asynchronous execution, streaming, tool call parsers, and prompt caching.

Verified against: Anthropic SDK Release Registry

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