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 396 entries on Flocci AI Tools with no upgrade path built in.
Can I use LangGraph in a browser, or is there an app?
LangGraph needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on an API, self-hosting and the command line.
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, CAMEL and Claude Agent SDK 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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- Role-based multi-agent 'crews'
- Simple Python API for collaboration
- Tasks, tools and flows
- Open-source core
OpenAI Agents SDK
Agent Frameworks (Developers)
- 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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- Leading framework for RAG and data agents
- Connect LLMs to your documents & APIs
- Agentic document workflows
- Open-source with a hosted cloud
Google Agent Development Kit (ADK)
Agent Frameworks (Developers)
- 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
Agent Frameworks (Developers)
- 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