Intermediate9 min

create_react_agent (Deprecated)

DEPRECATED in LangGraph v1. Use create_agent from langchain.agents instead — simpler interface, middleware support, and the same LangGraph runtime under the hood.

Quick Reference

→DEPRECATED: create_react_agent from langgraph.prebuilt is deprecated in LangGraph v1
→NEW STANDARD: from langchain.agents import create_agent
→create_agent is built on LangGraph — same checkpointing, streaming, and HITL support
→create_agent adds middleware for message management, PII filtering, and guardrails
→Migration: replace create_react_agent(model, tools) with create_agent(model, tools)

Deprecation Notice

create_react_agent is deprecated in LangGraph v1

LangGraph v1 deprecates create_react_agent in favor of LangChain's create_agent. The new API is simpler, adds a full middleware system, and is built on the same LangGraph runtime — so checkpointing, streaming, and human-in-the-loop all work identically. Migrate by changing the import: from langchain.agents import create_agent.

Migration — one-line change

The documentation below describes the original create_react_agent API for reference and backward compatibility. For new projects, use create_agent from the langchain.agents module — it provides the same capabilities plus a middleware system for context engineering, message trimming, guardrails, and PII filtering.

What It Is (Legacy)

create_react_agent is a prebuilt factory in langgraph.prebuilt that compiles a full ReAct agent loop into a CompiledStateGraph. It is not a LangChain AgentExecutor or a simple runnable — it is a proper LangGraph graph. That distinction matters: because it returns a CompiledStateGraph, you get .invoke(), .stream(), checkpointing, interrupt_before/after, and human-in-the-loop support with zero extra wiring.

Minimal Setup

A working agent in 10 lines

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