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The extraction API that shows its work — structured product data from any URL
About
ShopGraph extracts product data from any URL and shows you exactly how each field was derived. Per-field provenance and confidence based on extraction method, not opinion. Your automation decides what's reliable enough to act on. Hosted remote MCP server at https://shopgraph.dev/mcp. 50 free calls per month, no signup. Paid usage via API key or pay-per-call via Stripe MPP.
Security Report
10.0
Low Risk10.0Low RiskValid MCP server (2 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.
6 files analyzed · No issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
Getting Started
Once installed, try these example prompts and explore these capabilities:
- 1"Get me the price, availability, and brand for https://www.allbirds.com/products/mens-tree-runners"
- 2"Extract structured product data from this URL and only return fields with confidence above 0.8"
- 3"Return UCP-compatible output for this product URL so my agent can consume it"
- 4Tool: enrich_product — Full extraction pipeline with per-field confidence and provenance
- 5Tool: enrich_basic — Schema.org-only extraction (fastest, cheapest path)
- 6Tool: enrich_html — Structure HTML you already fetched from Bright Data, Firecrawl, or a headless browser
Documentation
View on GitHubFrom the project's GitHub README.
The extraction API that shows its work. Send a URL or raw HTML, get structured JSON with per-field confidence scoring and extraction provenance — every field shows which method produced it (Schema.org, LLM inference, or headless browser) and how confident the system is. Set strict_confidence_threshold and uncertain fields are removed server-side before they reach your agent. 50 free calls/month.
Website: https://shopgraph.dev | API: https://shopgraph.dev/api/enrich/basic | MCP: https://shopgraph.dev/mcp
UCP output validated with ucp-schema v1.1.0 — the official Universal Commerce Protocol schema validator.
Quick Start
# Free — no API key, no signup
curl -X POST https://shopgraph.dev/api/enrich/basic \
-H "Content-Type: application/json" \
-d '{"url": "https://www.allbirds.com/products/mens-tree-runners"}'
Returns structured JSON with per-field confidence scores:
{
"product": {
"product_name": "Men's Tree Runners",
"brand": "Allbirds",
"price": { "amount": 100, "currency": "USD" },
"availability": "in_stock",
"categories": ["Shoes", "Running"],
"confidence": { "overall": 0.95 },
"_shopgraph": {
"field_confidence": {
"product_name": 0.97,
"brand": 0.95,
"price": 0.98,
"availability": 0.90
}
}
},
"free_tier": { "used": 1, "limit": 50 }
}
Tools / Endpoints
| Tool | REST Endpoint | Price | What It Does |
|---|---|---|---|
enrich_basic | POST /api/enrich/basic | Free (shared quota) | Schema.org extraction only. Fast, zero LLM cost. |
enrich_product | POST /api/enrich | Free 50/mo, then subscription or $0.02/call | Full pipeline with per-field confidence scoring and extraction provenance. |
enrich_html | POST /api/enrich/html | Subscription or $0.02/call | Bring your own HTML. Works with Bright Data, Firecrawl, or any fetch/proxy tool. |
Pricing: Free (50/mo) | Starter $99/mo (10K calls) | Growth $299/mo (50K calls) | Enterprise (custom). Pay-per-call via Stripe MPP still available for agents. Cached results (24h) are free. No charge for failed extractions.
How It Works
Your agent sends a URL (or raw HTML)
→ Tier 1: Schema.org/JSON-LD parsing (0.93 baseline confidence, instant)
→ Tier 2: LLM extracts from page text when structured data is absent (0.70 baseline)
→ Tier 3: Headless Playwright renders JavaScript, then extracts (additional inference step)
→ Returns ProductData with per-field confidence scores and extraction provenance
(which tier produced each field) in _shopgraph.field_confidence
→ Set strict_confidence_threshold to remove low-confidence fields server-side
before they reach your agent
→ Add format=ucp for Universal Commerce Protocol output
Authentication: API key (sg_live_ keys) for subscription tiers, or Stripe MPP for pay-per-call agents.
ShopGraph is a structuring layer, not a fetcher. It's complementary to Bright Data, Firecrawl, and other fetch/proxy tools. They handle retrieval. ShopGraph handles extraction provenance and per-field confidence scoring.
REST API
POST /api/enrich/basic (Free tier)
curl -X POST https://shopgraph.dev/api/enrich/basic \
-H "Content-Type: application/json" \
-d '{"url": "https://example.com/product"}'
Schema.org only. Shares the free-tier quota with /api/enrich. No signup needed.
POST /api/enrich (Full extraction)
# With API key (subscription)
curl -X POST https://shopgraph.dev/api/enrich \
-H "Content-Type: application/json" \
-H "Authorization: Bearer sg_live_..." \
-d '{"url": "https://example.com/product", "strict_confidence_threshold": 0.8, "format": "ucp"}'
# With Stripe MPP (pay-per-call)
curl -X POST https://shopgraph.dev/api/enrich \
-H "Content-Type: application/json" \
-d '{"url": "https://example.com/product", "payment_method_id": "pm_..."}'
Full pipeline: Schema.org → LLM inference → headless browser. 50 free calls/month. Authenticate with API key (sg_live_) or Stripe MPP for higher limits.
POST /api/enrich/html (Bring your own HTML)
curl -X POST https://shopgraph.dev/api/enrich/html \
-H "Content-Type: application/json" \
-d '{"html": "<html>...</html>", "url": "https://example.com/product", "payment_method_id": "pm_..."}'
Already fetched the page? Pipe the HTML to ShopGraph for structuring.
MCP Configuration
{
"mcpServers": {
"shopgraph": {
"type": "url",
"url": "https://shopgraph.dev/mcp"
}
}
}
Works with Claude, Claude Code, Cursor, Windsurf, CrewAI, LangGraph, AutoGen, and any MCP client.
Extracted Data
Every response includes:
| Field | Description |
|---|---|
product_name | Product title |
brand | Manufacturer or brand |
price | Amount + currency + sale price |
availability | in_stock, out_of_stock, preorder, unknown |
categories | Product taxonomy |
image_urls | Product images (enrich_product/enrich_html only) |
color | Available colors |
material | Materials/fabrics |
dimensions | Size/weight info |
confidence | Overall + per-field scores (0-1) |
_shopgraph.field_confidence | Per-field confidence with field-type modifiers |
Self-Hosted Setup
git clone https://github.com/laundromatic/shopgraph.git
cd shopgraph
npm install
Required .env:
| Variable | Purpose |
|---|---|
STRIPE_TEST_SECRET_KEY | Stripe secret key (test or live) |
GOOGLE_API_KEY | Gemini API key for Tier 2 (LLM) inference |
UPSTASH_REDIS_REST_URL | Upstash Redis for stats/monitoring (optional) |
UPSTASH_REDIS_REST_TOKEN | Upstash Redis token (optional) |
npm run build # Compile TypeScript
npm start # Run MCP server (stdio)
npm run start:http # Run HTTP server
npm run dev # Dev mode (no build needed)
npm run test:run # Run 118 tests
Monitoring
ShopGraph runs 118 automated tests across 22 product verticals. Self-healing pipeline with circuit breaker, URL verification, and health alerts.
- Health: https://shopgraph.dev/health
- Stats: https://shopgraph.dev/api/stats
- Dashboard: Live on shopgraph.dev homepage
License
Apache 2.0
Built By
Krishna Brown | Los Angeles, CA
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