extract – OpenClaw Skill

---

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:

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

Quick Start

Using the Script

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

Examples:

# 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

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

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

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

Headers

Header	Value
Authorization	Bearer <TAVILY_API_KEY>
Content-Type	application/json

Request Body

Field	Type	Default	Description
urls	array	Required	URLs to extract (max 20)
query	string	null	Reranks chunks by relevance
chunks_per_source	integer	3	Chunks per URL (1-5, requires query)
extract_depth	string	"basic"	basic or advanced (for JS pages)
format	string	"markdown"	markdown or text
include_images	boolean	false	Include image URLs
timeout	float	varies	Max wait (1-60 seconds)

Response Format

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

Extract Depth

Depth	When to Use
basic	Simple text extraction, faster
advanced	Dynamic/JS-rendered pages, tables, structured data

Examples

Single URL Extraction

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

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

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

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