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Harness SDK

Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud.

FreeOpen source

What you get

Harness SDK is a free, open-source AI agent framework published on GitHub by strands-agents. Build an agent harness and control it end-to-end. Open-source SDK for production AI agents in Python & TypeScript - any model, any cloud. GitHub stars: 8,913 License: Apache-2.0 (free to use) Language: TypeScript Topics: agent-framework, agentic, agentic-ai, agents, ai, ai-agents, anthropic, autonomous-agents Last updated: 2026-10-22 How to get it: open the repository on GitHub, read the README and follow the setup steps. HEEEXY lists it in the Lab because it is popular, actively maintained and openly licensed.

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