Best Agent Frameworks
Libraries and SDKs for building your own AI agents. Orchestration, tool calling, multi-agent coordination, and state management for developers shipping agentic systems.
5 agents in this category
LangGraph
A low-level framework for building stateful agents; serious developer tooling, not a no-code app.
- Entry price
- Free (open source); managed Platform priced separately
- No-code
- 1/5
Pydantic AI
A type-safe Python agent framework; excellent for builders, not something a non-coder can run.
- Entry price
- Free (open source); you pay model API usage
- No-code
- 1/5
CrewAI
A Python framework for teams of collaborating agents; powerful for builders, not for non-coders.
- Entry price
- Free (open source); hosted enterprise platform priced separately
- No-code
- 1/5
OpenAI Agents SDK
A free, lightweight framework for building agents in code; for developers, not non-technical founders.
- Entry price
- Free (open source); you pay model API usage
- No-code
- 1/5
Microsoft AutoGen
A free Microsoft framework for building multi-agent systems; for developers, not non-coders.
- Entry price
- Free (open source); you pay model API usage
- No-code
- 1/5
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