SearchApi

本頁涵蓋如何在 LangChain 中使用 SearchApi Google Search API。SearchApi 是一個即時 SERP API，可輕鬆進行 SERP 抓取。

設定

• 前往 https://www.searchapi.io/ 註冊免費帳戶
• 取得 API 金鑰並將其設定為環境變數 (SEARCHAPI_API_KEY)

包裝器

實用工具

有一個 SearchApiAPIWrapper 實用工具包裝此 API。若要匯入此實用工具

from langchain_community.utilities import SearchApiAPIWrapper

API 參考：SearchApiAPIWrapper

您可以將其用作 Self Ask 鏈的一部分

from langchain_community.utilities import SearchApiAPIWrapper
from langchain_openai import OpenAI
from langchain.agents import initialize_agent, Tool
from langchain.agents import 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?")

API 參考：SearchApiAPIWrapper | OpenAI | initialize_agent | Tool | AgentType

輸出

> 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'

工具

您也可以輕鬆地將此包裝器載入為工具（與代理程式一起使用）。您可以使用以下方式執行此操作

from langchain.agents import load_tools
tools = load_tools(["searchapi"])

API 參考：load_tools

有關工具的更多資訊，請參閱此頁面。