LangChain & LangGraph
✓ VerifiedLangChain for LLM apps; LangGraph for stateful graph agents
Pricing and features change frequently—confirm on the vendor site.
About
LangChain provides provider-agnostic LLM tooling, while LangGraph adds a graph-based runtime for controllable, stateful agents with human-in-the-loop, persistence, and streaming. Both are open source with Python/JS SDKs and a growing ecosystem of integrations and middleware.
Key Features
- ✓Provider-agnostic LLM tooling
- ✓Tool calling and structured outputs
- ✓LangGraph graph-based execution for agents
- ✓Durable state, checkpoints, and persistence
- ✓Human-in-the-loop patterns
- ✓Streaming and middleware hooks
Use Cases
Technical Details
Languages
Integrations
Frequently Asked Questions
What is LangChain & LangGraph?
LangChain provides provider-agnostic LLM tooling, while LangGraph adds a graph-based runtime for controllable, stateful agents with human-in-the-loop, persistence, and streaming. Both are open source with Python/JS SDKs and a growing ecosystem of integrations and middleware.
Is LangChain & LangGraph free?
Yes, LangChain & LangGraph is open source and free to use.
What programming languages does LangChain & LangGraph support?
LangChain & LangGraph supports 2+ programming languages including Python, JavaScript.
What platforms does LangChain & LangGraph support?
LangChain & LangGraph is available on Python, JavaScript/TypeScript.
What can LangChain & LangGraph do?
LangChain & LangGraph provides agentic/autonomous mode. Key features include: Provider-agnostic LLM tooling, Tool calling and structured outputs, LangGraph graph-based execution for agents.