Agent frameworks
Libraries for building LLM-powered agents, tools and multi-step workflows.
Editorial ranking · Updated Nov 2, 2026 · Not sponsored
RankToolPricingBest for
- 1FreeComplex, controllable agent workflows
Open-source framework for LLM apps and stateful agents
Why it ranks · Largest ecosystem; LangGraph for production agents
FreeComplex, controllable agent workflows
- 2FreeTeams on OpenAI models
Lightweight open-source SDK for multi-agent workflows
Why it ranks · Simple primitives, built-in tracing
FreeTeams on OpenAI models
- 3FreeMulti-agent role-play setups
Framework for role-based multi-agent crews
Why it ranks · Easiest mental model for multi-agent teams
FreeMulti-agent role-play setups
- 4FreeTypeScript/JS developers
- 5FreeResearch and multi-agent experiments
Open-source multi-agent conversation framework
FreeResearch and multi-agent experiments
- 6FreeRAG over documents