Scrapegraph-ai

Python scraper based on AI

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17.0k20.3k23.6kFeb 10May 11

Overview

ScrapeGraphAI 是一个基于人工智能的 Python 网络爬虫库,它革新了传统的数据提取方式。该工具利用大语言模型(LLM)和图逻辑创建智能爬虫管道,能够处理网站和本地文档(XML、HTML、JSON、Markdown 等多种格式)。与传统爬虫需要编写复杂的选择器和解析规则不同,ScrapeGraphAI 允许用户用自然语言描述需要提取的信息,然后自动完成数据抓取任务。该项目在 GitHub 上获得了超过 23,000 个星标,拥有活跃的社区支持,提供多语言文档,并且维护着完整的 CI/CD 流程以确保代码质量。项目还提供了增强的商业版本 ScrapeGraphAI.com,只需 5 行代码即可实现大规模爬虫。这种基于 AI 的方法大大降低了网络爬虫的技术门槛,提高了开发效率。

Deep Analysis

Key Differentiator

Unlike Firecrawl (API-first, clean markdown output) or Scrapy (code-heavy traditional scraping), ScrapeGraphAI uses LLM-powered graph pipelines where you describe what to extract in plain English — the only scraper that truly understands page semantics rather than relying on selectors.

Capabilities

  • LLM-powered web scraping using graph-based pipelines that understand page structure via natural language prompts
  • SmartScraperGraph: extract structured data from any page with a single prompt
  • SearchGraph: multi-page scraping from search engine results
  • SpeechGraph: extract info and generate audio files
  • Support for local (Ollama) and cloud LLMs (OpenAI, Gemini, Azure, Groq)
  • MCP server for integration with AI agents
  • Parallel execution mode for multi-page scraping at scale

🔗 Integrations

LangChainLlamaIndexCrewAIAgnoCamelAIPipedreamZapiern8nDifyOllama

Best For

  • Developers who need to extract structured data from websites using natural language instead of CSS selectors or XPath
  • Prototyping data extraction pipelines where flexibility matters more than per-page cost

Not Ideal For

  • High-volume production scraping at scale — use Firecrawl or Scrapy for cost efficiency
  • Document parsing from local files — use Docling instead

Languages

PythonJavaScript (via API)

Deployment

pip install (local)ScrapeGraphAI Cloud APIDocker

Pricing Detail

Free: Open-source library free under MIT; cloud API has free tier
Paid: Cloud API paid plans for higher volume

Known Limitations

  • LLM costs per scrape — each extraction requires an LLM call, making it expensive at scale
  • Requires Playwright for JavaScript-rendered pages — adds installation complexity
  • Scraping accuracy depends on LLM quality and prompt engineering
  • Slower than traditional scraping due to LLM inference overhead

Pros

  • + 基于 LLM 的智能解析,无需手写复杂的选择器规则
  • + 支持多种数据格式(网站、XML、HTML、JSON、Markdown),具有广泛的适用性
  • + 自然语言交互方式,大幅降低使用门槛,提高开发效率

Cons

  • - 依赖大语言模型,可能产生额外的 API 调用成本
  • - AI 推理过程可能比传统爬虫速度较慢
  • - 对于大规模、高频率的数据抓取场景,性能可能不如专门优化的传统爬虫

Use Cases

  • 电商网站产品信息批量提取和价格监控
  • 新闻文章和博客内容的自动化采集和分析
  • 企业数据迁移中多种格式文档的结构化数据提取

Getting Started

1. 安装:使用 pip install scrapegraphai 安装库;2. 配置:设置 LLM API 密钥和模型参数;3. 使用:创建爬虫实例,用自然语言描述要提取的数据,运行获取结果

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