AgentSkillsCN

extract

利用 Tavily 的提取 API,从指定的 URL 中提取内容。该 API 可从网页中返回干净、格式化的 Markdown 或纯文本内容。当您手头已有特定的 URL,且希望在无需编写代码的情况下获取其内容时,可直接使用此功能。

SKILL.md
--- frontmatter
name: extract
description: "Extract content from specific URLs using Tavily's extraction API. Returns clean markdown/text from web pages. Use when you have specific URLs and need their content without writing code."

Extract Skill

Extract clean content from specific URLs. Ideal when you know which pages you want content from.

Prerequisites

Tavily API Key Required - Get your key at https://tavily.com

Add to ~/.claude/settings.json:

json
{
  "env": {
    "TAVILY_API_KEY": "tvly-your-api-key-here"
  }
}

Quick Start

Using the Script

bash
./scripts/extract.sh '<json>'

Examples:

bash
# Single URL
./scripts/extract.sh '{"urls": ["https://example.com/article"]}'

# Multiple URLs
./scripts/extract.sh '{"urls": ["https://example.com/page1", "https://example.com/page2"]}'

# With query focus and chunks
./scripts/extract.sh '{"urls": ["https://example.com/docs"], "query": "authentication API", "chunks_per_source": 3}'

# Advanced extraction for JS pages
./scripts/extract.sh '{"urls": ["https://app.example.com"], "extract_depth": "advanced", "timeout": 60}'

Basic Extraction

bash
curl --request POST \
  --url https://api.tavily.com/extract \
  --header "Authorization: Bearer $TAVILY_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
    "urls": ["https://example.com/article"]
  }'

Multiple URLs with Query Focus

bash
curl --request POST \
  --url https://api.tavily.com/extract \
  --header "Authorization: Bearer $TAVILY_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
    "urls": [
      "https://example.com/ml-healthcare",
      "https://example.com/ai-diagnostics"
    ],
    "query": "AI diagnostic tools accuracy",
    "chunks_per_source": 3
  }'

API Reference

Endpoint

code
POST https://api.tavily.com/extract

Headers

HeaderValue
AuthorizationBearer <TAVILY_API_KEY>
Content-Typeapplication/json

Request Body

FieldTypeDefaultDescription
urlsarrayRequiredURLs to extract (max 20)
querystringnullReranks chunks by relevance
chunks_per_sourceinteger3Chunks per URL (1-5, requires query)
extract_depthstring"basic"basic or advanced (for JS pages)
formatstring"markdown"markdown or text
include_imagesbooleanfalseInclude image URLs
timeoutfloatvariesMax wait (1-60 seconds)

Response Format

json
{
  "results": [
    {
      "url": "https://example.com/article",
      "raw_content": "# Article Title\n\nContent..."
    }
  ],
  "failed_results": [],
  "response_time": 2.3
}

Extract Depth

DepthWhen to Use
basicSimple text extraction, faster
advancedDynamic/JS-rendered pages, tables, structured data

Examples

Single URL Extraction

bash
curl --request POST \
  --url https://api.tavily.com/extract \
  --header "Authorization: Bearer $TAVILY_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
    "urls": ["https://docs.python.org/3/tutorial/classes.html"],
    "extract_depth": "basic"
  }'

Targeted Extraction with Query

bash
curl --request POST \
  --url https://api.tavily.com/extract \
  --header "Authorization: Bearer $TAVILY_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
    "urls": [
      "https://example.com/react-hooks",
      "https://example.com/react-state"
    ],
    "query": "useState and useEffect patterns",
    "chunks_per_source": 2
  }'

JavaScript-Heavy Pages

bash
curl --request POST \
  --url https://api.tavily.com/extract \
  --header "Authorization: Bearer $TAVILY_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
    "urls": ["https://app.example.com/dashboard"],
    "extract_depth": "advanced",
    "timeout": 60
  }'

Batch Extraction

bash
curl --request POST \
  --url https://api.tavily.com/extract \
  --header "Authorization: Bearer $TAVILY_API_KEY" \
  --header 'Content-Type: application/json' \
  --data '{
    "urls": [
      "https://example.com/page1",
      "https://example.com/page2",
      "https://example.com/page3",
      "https://example.com/page4",
      "https://example.com/page5"
    ],
    "extract_depth": "basic"
  }'

Tips

  • Max 20 URLs per request - batch larger lists
  • Use query + chunks_per_source to get only relevant content
  • Try basic first, fall back to advanced if content is missing
  • Set longer timeout for slow pages (up to 60s)
  • Check failed_results for URLs that couldn't be extracted