SearchApi
This page covers how to use theSearchApi Google Search API within LangChain. SearchApi is a real-time SERP API for easy SERP scraping.
Setup
- Go tohttps://www.searchapi.io/ to sign up for a free account
- Get the api key and set it as an environment variable (
SEARCHAPI_API_KEY)
Wrappers
Utility
There is a SearchApiAPIWrapper utility which wraps this API. To import this utility:
from langchain_community.utilitiesimport SearchApiAPIWrapper
API Reference:SearchApiAPIWrapper
You can use it as part of a Self Ask chain:
from langchain_community.utilitiesimport SearchApiAPIWrapper
from langchain_openaiimport OpenAI
from langchain.agentsimport initialize_agent, Tool
from langchain.agentsimport AgentType
import os
os.environ["SEARCHAPI_API_KEY"]=""
os.environ['OPENAI_API_KEY']=""
llm= OpenAI(temperature=0)
search= SearchApiAPIWrapper()
tools=[
Tool(
name="Intermediate Answer",
func=search.run,
description="useful for when you need to ask with search"
)
]
self_ask_with_search= initialize_agent(tools, llm, agent=AgentType.SELF_ASK_WITH_SEARCH, verbose=True)
self_ask_with_search.run("Who lived longer: Plato, Socrates, or Aristotle?")
Output
> Entering new AgentExecutor chain...
Yes.
Follow up: How old was Plato when he died?
Intermediate answer: eighty
Follow up: How old was Socrates when he died?
Intermediate answer: | Socrates |
| -------- |
| Born | c. 470 BC Deme Alopece, Athens |
| Died | 399 BC (aged approximately 71) Athens |
| Cause of death | Execution by forced suicide by poisoning |
| Spouse(s) | Xanthippe, Myrto |
Follow up: How old was Aristotle when he died?
Intermediate answer: 62 years
So the final answer is: Plato
> Finished chain.
'Plato'
Tool
You can also easily load this wrapper as a Tool (to use with an Agent).You can do this with:
from langchain_community.agent_toolkits.load_toolsimport load_tools
tools= load_tools(["searchapi"])
API Reference:load_tools
For more information on tools, seethis page.