shopextract 0.1.0

Extract, compare, and monitor product data from any e-commerce store

shopextract

Extract, compare, and monitor product data from any e-commerce store.

No existing pip package lets you extract structured product data from any store URL with zero config. shopextract does. Point it at a store, get back clean product data -- titles, prices, images, GTINs, variants -- ready for analysis, comparison, or feed generation.

---

Installation

pip install shopextract                 # core (extraction, comparison, monitoring)
pip install shopextract[data]           # + pandas, polars, parquet export
pip install shopextract[llm]            # + LLM-powered extraction (GPT-4o, etc.)
pip install shopextract[all]            # everything

Requires Python 3.10+.

---

Quick Start

import asyncio
import shopextract

async def main():
    result = await shopextract.extract("https://example-store.com")
    for product in result.products:
        print(f"{product.title}: {product.price} {product.currency}")

asyncio.run(main())

Three lines. That's it.

---

Features

Extract products from any store

The extract() function handles everything -- platform detection, URL discovery, and tiered extraction with automatic fallback.

import asyncio
import shopextract

async def main():
    # Extract from any store URL
    result = await shopextract.extract("https://example-store.com", max_urls=50)

    print(f"Platform: {result.platform}")       # shopify, woocommerce, magento, ...
    print(f"Tier: {result.tier}")               # api, unified_crawl, css
    print(f"Quality: {result.quality_score}")    # 0.0 - 1.0
    print(f"Products: {result.product_count}")

    for p in result.products[:5]:
        print(f"  {p.title} - {p.price} {p.currency}")
        print(f"    GTIN: {p.gtin}  SKU: {p.sku}")
        print(f"    Image: {p.image_url}")

asyncio.run(main())

Extract a single product page:

raw = await shopextract.extract_one("https://example-store.com/products/cool-widget")
print(raw)  # {"title": "Cool Widget", "price": "29.99", ...}

Use LLM for hard-to-scrape sites (JS-heavy, no structured data):

# With OpenAI
result = await shopextract.extract(
    "https://hard-to-scrape-store.com",
    llm_api_key="sk-...",
    llm_model="openai/gpt-4o-mini",
)

# With local Ollama (free, no API key)
result = await shopextract.extract(
    "https://hard-to-scrape-store.com",
    llm_model="ollama/llama3.1",
)

# Or set env vars and forget about it
# export OPENAI_API_KEY=sk-...
result = await shopextract.extract("https://any-store.com")

Import from a Google Shopping feed:

result = await shopextract.from_feed("https://example-store.com/feed.xml")
print(f"Imported {result.product_count} products from feed")

Detect platform

Identify which e-commerce platform a store runs on, with confidence scoring and detection signals.

import asyncio
import shopextract

async def main():
    result = await shopextract.detect("https://example-store.com")
    print(f"Platform: {result.platform}")       # e.g. Platform.SHOPIFY
    print(f"Confidence: {result.confidence}")   # 0.0 - 1.0
    print(f"Signals: {result.signals}")         # ["header:x-shopify", "cdn:cdn.shopify.com", ...]

asyncio.run(main())

Discover product URLs

Find all product pages on a store without extracting them.

import asyncio
import shopextract

async def main():
    urls = await shopextract.discover("https://example-store.com", max_urls=100)
    print(f"Found {len(urls)} product URLs")
    for url in urls[:10]:
        print(f"  {url}")

asyncio.run(main())

Uses a three-phase strategy: platform API pagination, sitemap parsing (with XML safety via defusedxml), and browser-based link crawling as a fallback.

Compare prices across stores

Search for a product across multiple stores and see who has the best price.

import asyncio
import shopextract

async def main():
    result = await shopextract.compare(
        "Wireless Headphones",
        stores=[
            "https://store-a.com",
            "https://store-b.com",
            "https://store-c.com",
        ],
    )

    print(f"Found {len(result.matches)} matches for '{result.query}'")
    if result.cheapest:
        print(f"Cheapest: {result.cheapest.price} at {result.cheapest.store}")
    if result.most_expensive:
        print(f"Most expensive: {result.most_expensive.price} at {result.most_expensive.store}")
    print(f"Average price: {result.avg_price}")
    print(f"Price spread: {result.price_spread}")

asyncio.run(main())

Compare two entire catalogs:

diff = await shopextract.compare_catalogs(
    "https://store-a.com",
    "https://store-b.com",
)
print(f"Only in A: {len(diff.only_in_a)}")
print(f"Only in B: {len(diff.only_in_b)}")
print(f"In both: {len(diff.in_both)}")
print(f"Cheaper in A: {len(diff.cheaper_in_a)}")
print(f"Cheaper in B: {len(diff.cheaper_in_b)}")

Match products by title similarity or GTIN:

# Fuzzy title matching
matches = shopextract.fuzzy_match(products_a, products_b, threshold=0.8)
for prod_a, prod_b, similarity in matches:
    print(f"{prod_a['title']} <-> {prod_b['title']} ({similarity:.0%})")

# Exact GTIN/SKU matching
found = shopextract.match_gtin("4260442152415", all_products)

Monitor stores for changes

Take snapshots over time and detect price changes, new products, and removals.

import asyncio
import shopextract

async def main():
    # Take a snapshot (stored in ~/.shopextract/snapshots.db)
    count = await shopextract.snapshot("https://example-store.com")
    print(f"Snapshot saved: {count} products")

    # Later, take another snapshot and check for changes
    await shopextract.snapshot("https://example-store.com")
    detected = shopextract.changes("example-store.com")

    for change in detected:
        if change.change_type == shopextract.ChangeType.PRICE_CHANGE:
            print(f"Price changed: {change.title} {change.old_price} -> {change.new_price}")
        elif change.change_type == shopextract.ChangeType.NEW_PRODUCT:
            print(f"New product: {change.title} ({change.price})")
        elif change.change_type == shopextract.ChangeType.REMOVED_PRODUCT:
            print(f"Removed: {change.title}")

asyncio.run(main())

Get price history for a specific product:

history = shopextract.price_history("example-store.com", "Cool Widget Pro")
for timestamp, price in history:
    print(f"  {timestamp.date()}: {price}")

Continuous watch mode with an async generator:

async def monitor():
    async for change in shopextract.watch("https://example-store.com", interval=3600):
        print(f"[{change.change_type}] {change.title}")

Analyze catalogs

Get statistical insights from extracted product data.

import asyncio
import shopextract

async def main():
    # Analyze directly from a URL
    stats = await shopextract.analyze("https://example-store.com")

    print(f"Total products: {stats.total_products}")
    print(f"Price range: {stats.price_range[0]} - {stats.price_range[1]}")
    print(f"Average price: {stats.avg_price}")
    print(f"Median price: {stats.median_price}")
    print(f"In stock: {stats.in_stock} / Out of stock: {stats.out_of_stock}")
    print(f"Have GTIN: {stats.has_gtin}")
    print(f"Have images: {stats.has_images}")
    print(f"Completeness score: {stats.completeness_score:.0%}")
    print(f"Top brands: {dict(list(stats.brands.items())[:5])}")

asyncio.run(main())

Or analyze an already-extracted product list:

# From raw product dicts
stats = shopextract.analyze_products(result.raw_products)

# Price distribution buckets
dist = shopextract.price_distribution(products)
# {"0-10": 5, "10-25": 12, "25-50": 30, "50-100": 18, "100-250": 8, ...}

# Find pricing outliers (beyond 2 standard deviations)
weird = shopextract.outliers(products, std_multiplier=2.0)
for p in weird:
    print(f"Outlier: {p['title']} at {p['price']}")

# Brand market share
brands = shopextract.brand_breakdown(products)
for brand, pct in brands.items():
    print(f"  {brand}: {pct}%")

Competitive intelligence

Understand where you stand against competitors.

import asyncio
import shopextract

async def main():
    # How does my product's price rank?
    my_product = {"title": "Premium Coffee Beans 1kg", "price": 24.99}
    position = await shopextract.price_position(
        my_product,
        competitors=["https://competitor-a.com", "https://competitor-b.com"],
    )
    print(f"Rank: #{position.rank} of {position.total_competitors + 1}")
    print(f"Percentile: {position.percentile}%")
    print(f"Market average: {position.market_avg}")
    print(f"Cheapest: {position.cheapest}  Most expensive: {position.most_expensive}")

    # What categories and brands am I missing?
    gaps = await shopextract.assortment_gaps(
        "https://my-store.com",
        competitors=["https://competitor-a.com", "https://competitor-b.com"],
    )
    print(f"Missing categories: {gaps.missing_categories}")
    print(f"Missing brands: {gaps.missing_brands}")

asyncio.run(main())

Brand coverage across multiple catalogs:

coverage = shopextract.brand_coverage({
    "my-store": my_products,
    "competitor-a": comp_a_products,
    "competitor-b": comp_b_products,
})
for brand, stores in coverage.items():
    print(f"{brand}: {stores}")
# {"Nike": {"my-store": 12, "competitor-a": 25, "competitor-b": 8}, ...}

Validate for marketplaces

Check if your product data meets marketplace requirements before submitting feeds.

import shopextract

products = [
    {"title": "Widget", "price": 29.99, "image_url": "https://...", "product_url": "https://..."},
    {"title": "", "price": -5},  # will fail validation
]

# Validate against Google Shopping, idealo, Amazon, or eBay rules
report = shopextract.validate(products, marketplace="google_shopping")
print(f"Pass rate: {report.pass_rate:.0f}%")
print(f"Valid: {report.valid}  Invalid: {report.invalid}  Warnings: {report.warnings}")

for issue in report.issues:
    severity = "WARN" if issue.severity == "warning" else "ERROR"
    print(f"  [{severity}] #{issue.product_index}: {issue.field} - {issue.error}")

Check for broken image URLs:

issues = await shopextract.check_images(products)
for issue in issues:
    print(f"  {issue.product_title}: {issue.error} ({issue.image_url})")

Find duplicate products:

# By title similarity
dupes = shopextract.find_duplicates(products, method="title", threshold=0.9)
for idx_a, idx_b, similarity in dupes:
    print(f"  Duplicate: #{idx_a} <-> #{idx_b} ({similarity:.0%})")

# By exact GTIN or SKU
dupes = shopextract.find_duplicates(products, method="gtin")

Export to any format

import shopextract

products = [...]  # list of product dicts

# Standard formats
shopextract.to_csv(products, "products.csv")
shopextract.to_json(products, "products.json")

# Marketplace feeds
shopextract.to_feed(products, "google_feed.xml", format="google_shopping")
shopextract.to_feed(products, "idealo_feed.tsv", format="idealo")

# Data science formats (requires shopextract[data])
df = shopextract.to_dataframe(products)
shopextract.to_parquet(products, "products.parquet")

CLI

Every feature is available from the command line.

# Extract products from a store
shopextract extract https://example-store.com
shopextract extract https://example-store.com -n 50 -f csv -o products.csv

# Detect platform
shopextract detect https://example-store.com

# Discover product URLs
shopextract discover https://example-store.com -n 200

# Compare prices
shopextract compare "Wireless Headphones" -s https://store-a.com -s https://store-b.com

# Monitor a store
shopextract snapshot https://example-store.com
shopextract changes example-store.com
shopextract history example-store.com "Cool Widget Pro"

# Analyze catalog
shopextract analyze https://example-store.com -n 100

# Validate product data
shopextract validate products.json -m google_shopping
shopextract validate products.json -m idealo

---

Supported Platforms

Platform	Detection	API Extraction	Scraping
Shopify	Headers, CDN, /products.json	/products.json (public)	UnifiedCrawl, CSS
WooCommerce	Headers, wp-json, plugin paths	Store API v1 (public)	UnifiedCrawl, CSS
Magento 2	Headers, REST API	/rest/V1/products (public)	UnifiedCrawl, CSS
BigCommerce	Meta tags, CDN	--	UnifiedCrawl, CSS
Shopware 6	Headers, API config	--	UnifiedCrawl, CSS
Generic	Fallback	--	UnifiedCrawl, CSS

Any store with product pages will work. Platform detection just enables faster API-based extraction when available.

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Extraction Tiers

shopextract uses a tiered fallback strategy -- it tries the fastest method first and falls back automatically.

Tier	Method	Speed	Reliability	Cost	Works On
API	Platform REST APIs	Fast	High	Free	Shopify, WooCommerce, Magento
UnifiedCrawl	JSON-LD + OG + markdown parsing	Medium	High	Free	Any site with structured data
CSS	Browser-based CSS selectors	Slow	Medium	Free	Any site
LLM	AI-powered extraction	Slow	High	Varies	Any site (universal fallback)

LLM Tier Configuration

The LLM tier requires pip install shopextract[llm] and an API key. It supports every major LLM provider via LiteLLM:

# Pass API key directly
result = await shopextract.extract(
    "https://some-store.com",
    llm_api_key="sk-...",
    llm_model="openai/gpt-4o-mini",
)

# Or use environment variables
# export SHOPEXTRACT_LLM_API_KEY=sk-...
# export SHOPEXTRACT_LLM_MODEL=anthropic/claude-sonnet-4-20250514
result = await shopextract.extract("https://some-store.com")

# Local models with Ollama (free, no API key)
result = await shopextract.extract(
    "https://some-store.com",
    llm_model="ollama/llama3.1",
)

Supported Providers

Provider	Model Examples	Env Var	Cost
OpenAI	openai/gpt-4o-mini, openai/gpt-4o	OPENAI_API_KEY	~$0.01-0.03/page
Anthropic	anthropic/claude-sonnet-4-20250514, anthropic/claude-haiku-4-5-20251001	ANTHROPIC_API_KEY	~$0.01-0.02/page
Google Gemini	gemini/gemini-2.0-flash, gemini/gemini-2.5-pro-preview-06-05	GEMINI_API_KEY	~$0.01/page
Ollama (local)	ollama/llama3.1, ollama/mistral, ollama/qwen2.5, ollama/deepseek-r1, ollama/phi3	None needed	Free
Mistral	mistral/mistral-large-latest, mistral/mistral-small-latest	MISTRAL_API_KEY	~$0.01/page
DeepSeek	deepseek/deepseek-chat	DEEPSEEK_API_KEY	~$0.002/page
Groq	groq/llama-3.1-70b-versatile, groq/llama-3.3-70b-versatile	GROQ_API_KEY	Free tier
Cohere	cohere/command-r-plus	COHERE_API_KEY	~$0.01/page
Perplexity	perplexity/sonar-pro	PERPLEXITY_API_KEY	~$0.01/page
Together AI	together_ai/meta-llama/...	TOGETHER_API_KEY	Varies
AWS Bedrock	bedrock/anthropic.claude...	AWS_ACCESS_KEY_ID	Varies
Google Vertex AI	vertex_ai/gemini-...	GOOGLE_APPLICATION_CREDENTIALS	Varies
Azure OpenAI	azure/gpt-4o	AZURE_API_KEY	Varies
Cloudflare	cloudflare/...	CLOUDFLARE_API_KEY	Free tier
Replicate	replicate/...	REPLICATE_API_TOKEN	Varies
OpenRouter	openrouter/... (100+ models)	OPENROUTER_API_KEY	Varies

Any model supported by LiteLLM works.

API Key Resolution Order

1. llm_api_key parameter (explicit)
2. SHOPEXTRACT_LLM_API_KEY environment variable
3. Provider-specific env var (e.g., OPENAI_API_KEY for openai/... models)
4. For ollama/* models -- no key needed (runs locally)

---

CLI Reference

Command	Description	Key Options
shopextract extract <url>	Extract products from a store	-n max URLs, -f format (json/csv), -o output file
shopextract detect <url>	Detect the e-commerce platform	--
shopextract discover <url>	Discover product URLs	-n max URLs
shopextract compare <query>	Compare prices across stores	-s store URL (repeatable)
shopextract snapshot <url>	Save a catalog snapshot	--
shopextract changes <domain>	Show changes between snapshots	--
shopextract history <domain> <product>	Price history for a product	--
shopextract analyze <url>	Catalog statistics	-n max products
shopextract validate <file>	Validate products against marketplace	-m marketplace

All commands output JSON by default.

---

API Reference

Core

Function	Signature	Returns
extract	async (url, *, platform=None, max_urls=20, shop_url=None, llm_api_key=None, llm_model="openai/gpt-4o-mini", llm_temperature=0.2)	ExtractionResult
extract_one	async (url, *, llm_api_key=None, llm_model="openai/gpt-4o-mini")	dict
from_feed	async (feed_url, *, shop_url="")	ExtractionResult
detect	async (url, *, client=None)	PlatformResult
discover	async (url, *, platform=None, max_urls=100, timeout=30.0, client=None)	list[str]
normalize	(raw, *, platform=GENERIC, shop_url="")	Product | None
QualityScorer.score_product	(product: dict)	float
QualityScorer.score_batch	(products: list[dict])	float

Compare

Function	Signature	Returns
compare	async (query, stores, *, max_per_store=50, threshold=0.6)	ComparisonResult
compare_catalogs	async (store_a, store_b, *, max_products=200, threshold=0.8)	CatalogDiff
fuzzy_match	(products_a, products_b, *, threshold=0.8)	list[tuple[dict, dict, float]]
match_gtin	(gtin, products)	list[dict]

Monitor

Function	Signature	Returns
snapshot	async (url, *, db_path="~/.shopextract/snapshots.db", max_urls=200)	int
changes	(domain, *, db_path=...)	list[Change]
price_history	(domain, product_title, *, db_path=...)	list[tuple[datetime, float]]
watch	async (url, *, interval=3600, db_path=...)	AsyncGenerator[Change]

Analyze

Function	Signature	Returns
analyze	async (url, max_products=500)	CatalogStats
analyze_products	(products: list[dict])	CatalogStats
price_distribution	(products, buckets=None)	dict[str, int]
outliers	(products, std_multiplier=2.0)	list[dict]
brand_breakdown	(products: list[dict])	dict[str, float]

Competitive Intelligence

Function	Signature	Returns
price_position	async (my_product, competitors, *, max_products=200)	PricePosition
assortment_gaps	async (my_store, competitors, *, max_products=200)	AssortmentGaps
brand_coverage	(catalogs: dict[str, list[dict]])	dict[str, dict[str, int]]

Validate

Function	Signature	Returns
validate	(products, marketplace="google_shopping")	ValidationReport
check_images	async (products, *, timeout=10.0, concurrency=20)	list[ImageIssue]
find_duplicates	(products, method="title", threshold=0.9)	list[tuple[int, int, float]]

Export

Function	Signature	Returns
to_csv	(products, path)	None
to_json	(products, path, indent=2)	None
to_feed	(products, path, format="google_shopping")	None
to_dataframe	(products)	pandas.DataFrame
to_parquet	(products, path)	None

Data Models

Model	Description
Product	Unified product with title, price, currency, description, image_url, gtin, sku, variants, etc.
Variant	Product variant (variant_id, title, price, sku, in_stock)
ExtractionResult	Extraction output: products, raw_products, tier, quality_score, platform, errors
ExtractorResult	Raw extractor output: products, complete, error, page counts
PlatformResult	Detection result: platform, confidence, signals
Platform	Enum: SHOPIFY, WOOCOMMERCE, MAGENTO, BIGCOMMERCE, SHOPWARE, GENERIC
ExtractionTier	Enum: API, UNIFIED_CRAWL, GOOGLE_FEED, CSS, LLM
ComparisonResult	Price comparison: query, matches, cheapest, most_expensive, avg_price, price_spread
Match	Matched product: title, price, currency, store, product_url, similarity
CatalogDiff	Catalog comparison: only_in_a, only_in_b, in_both, cheaper_in_a, cheaper_in_b
Change	Base change event: change_type, title, detected_at
PriceChange	Price change: old_price, new_price, currency
NewProduct	New product detected: price, currency
RemovedProduct	Product removed: last_price, currency
ChangeType	Enum: PRICE_CHANGE, NEW_PRODUCT, REMOVED_PRODUCT
CatalogStats	Catalog statistics: total, price_range, avg, median, brands, categories, completeness
PricePosition	Competitive pricing: rank, percentile, market_avg, competitor_prices
AssortmentGaps	Category/brand gaps: missing_categories, missing_brands
ValidationReport	Validation result: marketplace, total, valid, invalid, issues, pass_rate
ValidationIssue	Single issue: product_index, field, error, severity
ImageIssue	Image problem: product_index, image_url, status_code, error

---

Contributing

1. Fork the repository
2. Create a feature branch (git checkout -b feature/my-feature)
3. Install dev dependencies: pip install -e ".[dev]"
4. Run tests: pytest
5. Submit a pull request

---

License

MIT -- Copyright (c) 2026 Umer Khan