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Give AI a product catalog and product details with traceable sources.

Start with a catalog entry point for your store. Optionally add specifications, usage conditions and limitations, with sources. AI assistants (agents), search-engine crawlers and other tools that support SKU.md can follow the links to read the details and check their sources.

SKU.md is an open Markdown file format published by merchants.

Read a product page

Read a public product page and retain its source.

Synthetic example

example-outdoor.com/products/trail-shell

Source excerpt
Synthetic olive-green hooded shell jacket product image

Trail Shell Jacket

Trail Shell Jacket — product weight: 480 g.
Source updated
2026-08-11
Product weight
480 g

Check details and sources

Review each quotation before accepting a fact.

Product title
Trail Shell JacketMerchant-reviewed
Product weight
480 gMerchant-reviewed
Care instructions
Not stated in sourceNeeds review

Download product details

Editable Markdown and suggested product-page structured data changes for human review.

Reviewed output excerpt

Care instructions remain unknown and are not exported.

# Trail Shell Jacket
Product: [Official product page](https://www.example-outdoor.com/products/trail-shell)
Updated: 2026-08-11

## Facts
- Product weight is 480 g. [Source](https://www.example-outdoor.com/products/trail-shell)

What SKU.md owns

Merchant-maintained product catalogs and source-linked details for tools that support SKU.md.

Read a product page

Read product pages and specifications while retaining their source.

Check details and sources

Verify key details and flag gaps before publishing.

Download product details

Editable Markdown and suggested product-page structured data changes for human review.

Start with one catalog entry file

Include the store name, summary, website and catalog link. You can start before preparing details for every product.

Read Specification
# Example Outdoor Gear> Lightweight outdoor equipment for hikers. SKU.md: [1.0.0](https://sku.md/spec/1.0.0/)Website: [example-outdoor.com](https://www.example-outdoor.com/) ## Catalog- [All products](https://www.example-outdoor.com/collections/all)

Where do product details and live information belong?

Use each layer for the information it can truthfully own.

SKU.md · Catalog and product details

A catalog entry point and source-linked specifications, usage conditions and limitations.

Product page, Feed or Catalog · Current information

Check current prices, stock, delivery and availability.

Commerce systems · Purchases and orders

Handle carts, checkout, payments and orders.

Choose the next task

Start with the smallest route that matches what you need now.

Start with your store’s catalog entry point.

Create a catalog file, then add product details as needed.

Create a catalog file