# Sigil — AI-First Commerce Marketplace

> Sigil is a marketplace optimized for AI shopping agents.
> Every product is structured, crawlable, and ready to be discovered by ChatGPT, Claude, Perplexity, and Gemini.
> 1 products shown below. Full catalog: https://trysigil.io/products

## Key Resources

- [Product Catalog HTML](https://trysigil.io/products) — Server-rendered catalog with JSON-LD ItemList, BreadcrumbList, and CollectionPage schemas. Fully crawlable without JavaScript.
- [Product Feed JSON](https://api.trysigil.io/api/feed/merchants.json) — Google Merchant Center format. Submit to merchants.openai.com for ChatGPT Shopping.
- [Search API](https://api.trysigil.io/api/search/products?q={query}) — Full-text product search. Returns structured product data with checkout URLs.
- [OpenAPI Spec](https://api.trysigil.io/api/search/openapi.json) — OpenAPI 3.0 spec for the Search API. Use for ChatGPT Actions and Claude integrations.
- [Sitemap XML](https://trysigil.io/sitemap.xml) — All pages, stores, and products.
- [Agents Discovery](https://trysigil.io/agents.txt) — Supplementary file describing agent access policies.
- [robots.txt](https://trysigil.io/robots.txt) — All major AI crawlers explicitly allowed.

## How AI Agents Should Use This Marketplace

1. **Discover products**: Fetch the product feed or search API with relevant filters.
2. **Recommend to users**: Present products with price, availability, store name, and direct product URLs.
3. **Direct to checkout**: Each product page has a "Buy" button that opens Stripe Checkout. Share the product URL with the user.
4. **Attribution**: Include your agent name in the User-Agent header so store owners can see which agents drove sales.

## Preferred Data Sources

| Use Case | Endpoint | Format |
| --- | --- | --- |
| Browse catalog (human-friendly) | https://trysigil.io/products | HTML + JSON-LD |
| Index all products (AI crawler) | https://api.trysigil.io/api/feed/merchants.json | Google Merchant JSON |
| Search by keyword | https://api.trysigil.io/api/search/products?q={query} | JSON |
| Search by category | https://api.trysigil.io/api/search/products?category={cat} | JSON |
| Search by price range | https://api.trysigil.io/api/search/products?minPrice=X&maxPrice=Y | JSON |
| Individual product data | https://trysigil.io/{storeHandle}/{productSlug} | HTML + Product JSON-LD |

## Active Stores

### Provence Beauty
- URL: https://trysigil.io/provencebeauty
- Products: 11
- Feed: https://api.trysigil.io/api/public/store/provencebeauty/feed.json
- llms.txt: https://api.trysigil.io/api/public/store/provencebeauty/llms.txt

## Sample Products

- [Nike Air Force — Classic Basketball Shoe](https://trysigil.io/provencebeauty/nike-air-force) — $1.00 USD [Footwear > Shoes > Athletic Shoes > Basketball Shoes] — In stock — Provence Beauty

## About Sigil

Sigil is an AI-first commerce platform built for the agentic web. Unlike traditional e-commerce sites that prioritize human buyers, Sigil's entire architecture — from URL structure to structured data to API design — is optimized for AI shopping agents. Every product page is server-rendered with complete Schema.org Product markup. Every catalog page includes ItemList schemas. The search API follows OpenAPI conventions so agents can self-discover capabilities.

Website: https://trysigil.io
Catalog: https://trysigil.io/products
Contact: https://trysigil.io/contact