Overview

Strands Agents is a simple yet powerful SDK that takes a model-driven approach to building and running AI agents. The TypeScript SDK brings key features from the Python Strands framework to Node.js environments, enabling type-safe agent development for everything from simple assistants to complex workflows.

Key Features

🪶 Lightweight & Flexible: Simple agent loop that works seamlessly in Node.js and browser environments
🔒 Type-Safe Tools: Define tools easily using Zod schemas for robust input validation and type inference
📋 Structured Output: Get type-safe, validated responses from LLMs using Zod schemas with automatic retry on validation errors
🔌 Model Agnostic: First-class support for Amazon Bedrock and OpenAI, with extensible architecture for custom providers
🔗 Built-in MCP: Native support for Model Context Protocol (MCP) clients, enabling access to external tools and servers
⚡ Streaming Support: Real-time response streaming for better user experience
🎣 Extensible Hooks: Lifecycle hooks for monitoring and customizing agent behavior
💬 Conversation Management: Flexible strategies for managing conversation history and context windows