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Build your first agent →

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Explore a Harnest project

Select a file or folder to explore the code behind a Harnest agent.

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Focus on what your agent does

Whether you’re building a support assistant, an internal knowledge tool, or an operations workflow, Harnest gives you a place for each part of the application. Start with the capabilities you need. Configure persistent services, authentication, and deployment as you move toward production. The production guide covers that next step.

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Start with code or Studio

Install Harnest on macOS or Linux. No preinstalled Python is required.
See installation options, or create your first project:
Use --framework langgraph if you prefer LangGraph. Configure your model, edit instructions.md, then test and serve:
Open the playground at http://127.0.0.1:1907/ to try it. Prefer a visual workspace? Launch Harnest Studio with harnest studio --workspace /path/to/agents. Already have an agent? Bring it into Harnest in advanced mode to keep direct framework control, then adopt managed capabilities at your own pace. Build your first agent → Harnest is open source under Apache 2.0, built and maintained by Fused.