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此页面介绍了如何在 LangChain 中使用 SearchApi 谷歌搜索 API。SearchApi 是一个实时 SERP API,用于轻松进行 SERP 抓取。

设置

包装器

实用工具

有一个 SearchApiAPIWrapper 实用程序可以包装此 API。要导入此实用程序:
from langchain_community.utilities import SearchApiAPIWrapper
您可以将其用作自问链的一部分
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?")

输出

> 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

您还可以轻松地将此包装器作为工具(与 Agent 一起使用)加载。您可以使用以下方式完成此操作
from langchain_community.agent_toolkits.load_tools import load_tools
tools = load_tools(["searchapi"])
有关工具的更多信息,请参阅此页面
以编程方式连接这些文档到 Claude、VSCode 等,通过 MCP 获取实时答案。
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