What is LangGraph?
LangGraph is listed under Agent Frameworks (Developers), in the AI Agents & Automation category on Flocci AI Tools. Build stateful, multi-agent apps as graphs. It is free, with no paid plan attached, and it lives at langchain.com.
What LangGraph does
- Build stateful, multi-agent apps as graphs
- Human-in-the-loop and durable execution
- Works with any LLM
- Open-source with a hosted platform
LangGraph — straight answers
Is LangGraph free?
LangGraph is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 115 entries on Flocci AI Tools with no upgrade path built in.
What can LangGraph do?
LangGraph does 4 things the catalog singles out: Build stateful, multi-agent apps as graphs; human-in-the-loop and durable execution; works with any llm; open-source with a hosted platform.
What is the best free alternative to LangGraph?
Agno is the closest free alternative: it sits in the same Agent Frameworks (Developers) sub-category and is free. AWS Strands Agents, DSPy and Google Agent Development Kit (ADK) also start free. The full list is on the alternatives page.
See the full list →LangGraph alternatives
Compare all alternatives →CrewAI
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- Tasks, tools and flows
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OpenAI Agents SDK
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- Lightweight agent orchestration from OpenAI
- Agent handoffs, guardrails and tracing
- Tool and function calling built in
- Open-source, pay only for model usage
Microsoft AutoGen
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- Multi-agent conversation framework
- Event-driven, async agent design
- Studio UI for prototyping
- Fully open-source
LlamaIndex
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- Connect LLMs to your documents & APIs
- Agentic document workflows
- Open-source with a hosted cloud
Google Agent Development Kit (ADK)
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- Open-source Python/Java framework from Google for building multi-agent systems
- Native integration with Vertex AI Agent Engine and Gemini models
- Model-agnostic — works with non-Google LLMs via LiteLLM
Pydantic AI
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- Type-safe Python agent framework from the Pydantic team, validated structured outputs
- Model-agnostic (OpenAI, Anthropic, Gemini, Groq, Mistral, local)
- Built-in dependency injection and streaming; pairs with Pydantic Logfire for observability