harness-sdk

Open-source SDK by AWS for building agent harnesses end-to-end in Python and TypeScript. Supports any model or cloud provider via built-in MCP integration and multi-agent orchestration.

Connects to: Claude, OpenAI, AWS Bedrock, MCP tools, Python, TypeScript · · Apache-2.0 6,401★

Use it with an AI agent

Loadbay is an MCP server, so an agent can search the catalog and find this harness:

claude mcp add --transport http loadbay https://loadbay.xyz/api/mcp

• Source: https://github.com/strands-agents/harness-sdk
• This harness as JSON: /api/harnesses/harness-sdk
• Agent setup: /setup.md
• Browse all 700+ harnesses on Loadbay