Official AI agent development toolkit from Anthropic. Supports Python and TypeScript with powerful features including tool calling, code execution, file operations, and MCP integration.

Headless browser automation CLI for AI agents. Fast Rust CLI with Node.js fallback, designed for seamless integration with AI workflows.

Open-source AI agent framework developed by Luki Labs, providing flexible agent orchestration and workflow management capabilities for building complex AI application scenarios. link-agents is an enhanced fork with deep Claude Code integration.