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Brave 搜索

Brave Search 是由 Brave Software 开发的搜索引擎。

  • Brave Search 使用其自己的网络索引。截至 2022 年 5 月，它覆盖了超过 100 亿个页面，并且在不依赖任何第三方的情况下提供了 92% 的搜索结果，其余部分是从 Bing API 服务器端检索，或者（在选择加入的基础上）从 Google 客户端检索。据 Brave 称，该索引被“有意地做得比 Google 或 Bing 的小”，以帮助避免垃圾邮件和其他低质量内容，缺点是“Brave Search 在恢复长尾查询方面还不如 Google”。
  • Brave Search Premium：截至 2023 年 4 月，Brave Search 是一个无广告网站，但最终将切换到包含广告的新模式，高级用户将获得无广告体验。默认情况下，不会从用户那里收集包括 IP 地址在内的用户数据。选择加入数据收集将需要高级帐户。

安装和设置​

要访问 Brave Search API，您需要创建帐户并获取 API 密钥。

api_key = "..."
from langchain_community.document_loaders import BraveSearchLoader
API 参考：BraveSearchLoader

示例​

loader = BraveSearchLoader(
    query="obama middle name", api_key=api_key, search_kwargs={"count": 3}
)
docs = loader.load()
len(docs)
3
[doc.metadata for doc in docs]
[{'title': "Obama's Middle Name -- My Last Name -- is 'Hussein.' So?",
  'link': 'https://www.cair.com/cair_in_the_news/obamas-middle-name-my-last-name-is-hussein-so/'},
 {'title': "What's up with Obama's middle name? - Quora",
  'link': 'https://www.quora.com/Whats-up-with-Obamas-middle-name'},
 {'title': 'Barack Obama | Biography, Parents, Education, Presidency, Books, ...',
  'link': 'https://www.britannica.com/biography/Barack-Obama'}]
[doc.page_content for doc in docs]
['I wasn’t sure whether to laugh or cry a few days back listening to radio talk show host Bill Cunningham repeatedly scream Barack <strong>Obama</strong>’<strong>s</strong> <strong>middle</strong> <strong>name</strong> — my last <strong>name</strong> — as if he had anti-Muslim Tourette’s. “Hussein,” Cunningham hissed like he was beckoning Satan when shouting the ...',
 'Answer (1 of 15): A better question would be, “What’s up with <strong>Obama</strong>’s first <strong>name</strong>?” President Barack Hussein <strong>Obama</strong>’s father’s <strong>name</strong> was Barack Hussein <strong>Obama</strong>. He was <strong>named</strong> after his father. Hussein, <strong>Obama</strong>’<strong>s</strong> <strong>middle</strong> <strong>name</strong>, is a very common Arabic <strong>name</strong>, meaning &quot;good,&quot; &quot;handsome,&quot; or ...',
 'Barack <strong>Obama</strong>, in full Barack Hussein <strong>Obama</strong> II, (born August 4, 1961, Honolulu, Hawaii, U.S.), 44th president of the United States (2009–17) and the first African American to hold the office. Before winning the presidency, <strong>Obama</strong> represented Illinois in the U.S.']

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