Files
langgraph/libs/sdk-py
Sydney RunkleandGitHub 5e7566f4a3 lint: use pep 604 union syntax and pep 585 generic syntax (#4963)
* new union syntax

* fix test

* second round of conversions by injecting future annotations

* format + add top level makefile
2025-06-04 21:50:16 -04:00
..
2025-05-15 17:39:14 -07:00
2025-05-12 12:44:50 -07:00
2025-05-22 00:07:56 +02:00

LangGraph Python SDK

This repository contains the Python SDK for interacting with the LangGraph Platform REST API.

Quick Start

To get started with the Python SDK, install the package

pip install -U langgraph-sdk

You will need a running LangGraph API server. If you're running a server locally using langgraph-cli, SDK will automatically point at http://localhost:8123, otherwise you would need to specify the server URL when creating a client.

from langgraph_sdk import get_client

# If you're using a remote server, initialize the client with `get_client(url=REMOTE_URL)`
client = get_client()

# List all assistants
assistants = await client.assistants.search()

# We auto-create an assistant for each graph you register in config.
agent = assistants[0]

# Start a new thread
thread = await client.threads.create()

# Start a streaming run
input = {"messages": [{"role": "human", "content": "what's the weather in la"}]}
async for chunk in client.runs.stream(thread['thread_id'], agent['assistant_id'], input=input):
    print(chunk)