harness-sdk

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

★ 7.4K1,169 forksPythonApache-2.0strands-agents

Strands Agents is an Apache-2.0 SDK for building and running AI agents in Python and TypeScript. It provides an in-process agent loop with tools, MCP, multi-agent patterns, memory, streaming, guardrails, tracing and evals, and is model-agnostic across Bedrock, Anthropic, OpenAI and Gemini.

Use Cases

building production AI agents in Python or TypeScriptcustom agent loops with turn limits, token budgets and cancellationmulti-agent orchestration patternsconnecting agents to MCP toolsmodel-agnostic provider switching (Bedrock, Anthropic, OpenAI, Gemini, Ollama)structured output from agentsstreaming agent responsesguardrails and steering handlers for self-correctionagent session and memory managementtracing and observability of the agent looprunning agent evaluationsdeclarative tool definitions with Zod typing

Built With

Language: Python
Frameworks: MCP · Amazon Bedrock · Anthropic · OpenAI · Gemini · Ollama · Zod · Astro/Starlight · pytest · Vitest

harness-sdk

Use Cases

Built With

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