AWS Strands Agents SDK: Build Production AI Agents in 2026
AWS Strands Agents is an open-source Python and TypeScript SDK that lets you build production-ready AI agents in under 10 lines of code. Released by AWS in May 2025 and reaching 14 million+ downloads, it uses a model-driven loop where you describe a goal, attach tools, and the agent decides at runtime what to call and in what order. What Is AWS Strands Agents SDK? AWS Strands Agents SDK is an open-source AI agent framework developed by Amazon Web Services that uses a model-driven paradigm — you describe what you want the agent to achieve, attach a set of tools, and the underlying LLM decides which tools to call, in which order, and when to stop. Unlike graph-based frameworks that require you to wire explicit nodes and edges, Strands agents reason dynamically at runtime, adapting their execution plan based on intermediate results. Since its preview launch in May 2025, Strands has accumulated 14 million+ downloads and powers internal AWS services including Amazon Q Developer, AWS Glue, and the VPC Reachability Analyzer. The SDK supports 9+ model providers — Amazon Bedrock, Anthropic, OpenAI, Gemini, LiteLLM, Llama, Ollama, and Writer — through a unified API, so you can prototype locally with Ollama and deploy to Bedrock without touching your agent logic. Version 1.0 added Graph, Swarm, and Workflow multi-agent patterns and the A2A (Agent-to-Agent) protocol for cross-framework interoperability. The result is the lowest barrier-to-entry of any major agent framework available in 2026. ...