Anthropic

AI safety company; creator of the Claude family of models and Claude Code.

Website

Models

Apps

Tools

Claude 3 Haiku

No description

Claude 3 Opus

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Claude 3 Sonnet

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Claude 3.5 Haiku

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Claude 3.5 Sonnet

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Claude 3.7 Sonnet

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Claude Fable 5

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Claude Haiku 4.5

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Claude Mythos 5

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Claude Opus 4

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Claude Opus 4.1

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Claude Opus 4.5

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Claude Opus 4.6

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Claude Opus 4.7

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Claude Opus 4.8

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Claude Sonnet 4

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Claude Sonnet 4.5

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Claude Sonnet 4.6

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Claude Sonnet 5

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Claude

Claude is Anthropic's AI assistant with a focus on being helpful, harmless, and honest. Known for excellent performance on coding and analysis tasks.

Anthropic SDK

The official Anthropic SDK provides a clean interface for accessing Claude models. Features include streaming, tool use, vision support, and automatic retries. Available for Python and TypeScript/JavaScript.

Claude Agent SDK

The Claude Agent SDK (formerly the Claude Code SDK) lets developers build custom AI agents on the same harness that powers Claude Code, with support for custom tools, hooks, MCP servers, and bidirectional streaming sessions. Available for Python and TypeScript.

Claude Code

Claude Code is Anthropic's official CLI tool for agentic coding. It allows Claude to operate as an autonomous coding agent, reading and writing files, executing commands, and iterating on solutions with minimal human intervention. Perfect for complex multi-file refactoring, adding new features, and debugging.

Filesystem MCP Server

Anthropic's reference Model Context Protocol server for reading and writing local files with configurable access controls. Part of the official servers collection, it is a common building block for giving agents safe filesystem access.