Harnesses.
Agent frameworks and orchestration platforms — the scaffolding that turns models into autonomous systems.
CrewAI
Multi-agent orchestration. Define roles, goals, and tools — agents collaborate on complex tasks.
LangGraph
Stateful, graph-based agent orchestration. Build workflows with cycles, branching, and persistence.
AutoGen
Microsoft’s multi-agent framework. Agents talk to each other; add a human or tool as another agent.
Semantic Kernel
Microsoft’s enterprise-first SDK. Plugins + planners + memory, in C#, Python, and Java.
DSPy
Stanford’s prompt-program compiler. Write Python signatures; DSPy optimizes the prompts for you.
Instructor
Structured output made simple. Pydantic in; validated JSON out. Every model, one API.
Outlines
Guaranteed structured generation via grammar constraints. For local models, no retries needed.
AutoGPT
The original autonomous agent. Give it a goal, watch it loop. Now a full platform.
Devin
Cognition’s autonomous software engineer. A cloud-hosted AI teammate that owns tickets end-to-end.
Lindy
No-code AI employees. Build agents with triggers, tools, and workflows in a visual builder.
Beam AI
Enterprise agentic process automation. Pre-built agents for back-office workflows.
Relevance AI
Low-code platform for building custom AI agents. Workforce-in-a-box for ops teams.
BabyAGI
Minimalist autonomous agent. A few hundred lines of Python; the origin of the "task list agent" pattern.
GPT Pilot
An AI dev team in your terminal. Asks clarifying questions, writes code, runs it, debugs it.
Flowise
Drag-and-drop LLM flows. LangChain under the hood, visual builder on top. Self-hostable.
n8n AI
Workflow automation with AI nodes. Fair-code license, self-hostable, 500+ integrations.
Mastra
TypeScript-first agent framework. Workflows, tools, RAG, and evals as first-class primitives.
LiveKit Agents
Realtime voice agents on WebRTC. The standard stack for voice AI in production.