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LangGraph · Function

add_node

add_node adds a function or runnable to a StateGraph. You can use the function name automatically or provide a custom node name.

Last updated

Since
v1.2

Syntax

StateGraph.add_node(node, action=None, *, defer=False, metadata=None, input_schema=None, retry_policy=None, cache_policy=None, error_handler=None, destinations=None, timeout=None, trace_policy=None, **kwargs)

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  • StateGraph
  • START
  • END
  • add_edge
  • Command
  • RetryPolicy
  • CachePolicy

Source: add_node | langgraph | LangChain Reference. Checked 2026-11-03.