Google Finance

This notebook goes over how to use the Google Finance Tool to get information from the Google Finance page.

To get an SerpApi key key, sign up at: https://serpapi.com/users/sign_up.

To use the tool with Langchain install following packages

%pip install --upgrade --quiet  google-search-results langchain-community

Then set the environment variable SERPAPI_API_KEY to your SerpApi key or pass the key in as a argument to the wrapper serp_api_key="your secret key".

import os

from langchain_community.tools.google_finance import GoogleFinanceQueryRun
from langchain_community.utilities.google_finance import GoogleFinanceAPIWrapper

os.environ["SERPAPI_API_KEY"] = "[your serpapi key]"
tool = GoogleFinanceQueryRun(api_wrapper=GoogleFinanceAPIWrapper())

API Reference:GoogleFinanceQueryRun | GoogleFinanceAPIWrapper

tool.run("Google")

'\nQuery: Google\nstock: GOOGL:NASDAQ\nprice: $161.96\npercentage: 1.68\nmovement: Up\n'

In order to create an agent that uses the Google Finance tool install Langgraph

%pip install --upgrade --quiet langgraph langchain-openai

and use the create_react_agent functionality to initialize a ReAct agent. You will also need to set up your OPEN_API_KEY (visit https://platform.openai.com) in order to access OpenAI's chat models.

import os

from langchain.agents import load_tools
from langchain.chat_models import init_chat_model
from langgraph.prebuilt import create_react_agent

os.environ["OPENAI_API_KEY"] = "[your openai key]"
os.environ["SERP_API_KEY"] = "[your serpapi key]"

llm = init_chat_model("gpt-4o-mini", model_provider="openai")
tools = load_tools(["google-scholar", "google-finance"], llm=llm)
agent = create_react_agent(llm, tools)

events = agent.stream(
    {"messages": [("user", "What is Google's stock?")]},
    stream_mode="values",
)
for event in events:
    event["messages"][-1].pretty_print()

API Reference:load_tools | init_chat_model | create_react_agent

================================[1m Human Message [0m=================================

What is Google's stock?
==================================[1m Ai Message [0m==================================
Tool Calls:
  google_finance (call_u676mJAkdojgkW806ZGSE8mF)
 Call ID: call_u676mJAkdojgkW806ZGSE8mF
  Args:
    query: Google
=================================[1m Tool Message [0m=================================
Name: google_finance


Query: Google
stock: GOOGL:NASDAQ
price: $161.96
percentage: 1.68
movement: Up

==================================[1m Ai Message [0m==================================

Google's stock (Ticker: GOOGL) is currently priced at $161.96, showing an increase of 1.68%.

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