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74 lines
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74 lines
2.2 KiB
Markdown
# Google Serper Wrapper
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This page covers how to use the [Serper](https://serper.dev) Google Search API within LangChain. Serper is a low-cost Google Search API that can be used to add answer box, knowledge graph, and organic results data from Google Search.
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It is broken into two parts: setup, and then references to the specific Google Serper wrapper.
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## Setup
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- Go to [serper.dev](https://serper.dev) to sign up for a free account
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- Get the api key and set it as an environment variable (`SERPER_API_KEY`)
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## Wrappers
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### Utility
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There exists a GoogleSerperAPIWrapper utility which wraps this API. To import this utility:
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```python
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from langchain.utilities import GoogleSerperAPIWrapper
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```
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You can use it as part of a Self Ask chain:
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```python
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from langchain.utilities import GoogleSerperAPIWrapper
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from langchain.llms.openai import OpenAI
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from langchain.agents import initialize_agent, Tool
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from langchain.agents import AgentType
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import os
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os.environ["SERPER_API_KEY"] = ""
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os.environ['OPENAI_API_KEY'] = ""
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llm = OpenAI(temperature=0)
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search = GoogleSerperAPIWrapper()
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tools = [
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Tool(
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name="Intermediate Answer",
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func=search.run,
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description="useful for when you need to ask with search"
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)
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]
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self_ask_with_search = initialize_agent(tools, llm, agent=AgentType.SELF_ASK_WITH_SEARCH, verbose=True)
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self_ask_with_search.run("What is the hometown of the reigning men's U.S. Open champion?")
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```
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#### Output
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```
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Entering new AgentExecutor chain...
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Yes.
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Follow up: Who is the reigning men's U.S. Open champion?
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Intermediate answer: Current champions Carlos Alcaraz, 2022 men's singles champion.
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Follow up: Where is Carlos Alcaraz from?
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Intermediate answer: El Palmar, Spain
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So the final answer is: El Palmar, Spain
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> Finished chain.
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'El Palmar, Spain'
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```
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For a more detailed walkthrough of this wrapper, see [this notebook](../modules/agents/tools/examples/google_serper.ipynb).
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### Tool
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You can also easily load this wrapper as a Tool (to use with an Agent).
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You can do this with:
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```python
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from langchain.agents import load_tools
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tools = load_tools(["google-serper"])
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```
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For more information on this, see [this page](../modules/agents/tools/getting_started.md)
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