Anthropic API vs Claude Code

The Anthropic API provides programmatic access to Claude, Anthropic's family of AI language models including Claude Opus, Sonnet, and Haiku. It supports text generation, code generation, analysis, and tool use through a REST API and official SDKs for Python and TypeScript. The API uses token-based pricing with different rates for input and output tokens.

Claude Code is a command-line tool by Anthropic that enables developers to delegate coding tasks to Claude directly from their terminal. It provides agentic coding capabilities including file editing, test running, and Git operations.