# NanoCart

> NanoCart (https://nanocart.io) is an e-commerce platform for small stores: an
> embeddable cart + checkout widget for any website, and hosted storefronts at
> {store}.nanocart.io. Flat monthly pricing, 0% NanoCart transaction fees. Payments run
> through the merchant's own Stripe and/or PayPal accounts.

Key facts for AI agents:
- Widget embed: `<script src="https://cdn.nanocart.io/v1/nanocart.min.js" data-store-id="STORE_ID"></script>`
  (the attribute is data-store-id; the Store ID is public).
- Buttons: data-nanocart-buy / data-nanocart-add (add first variant + open cart drawer),
  data-nanocart-product (detail modal WITH variant selector).
- Theming: CSS variables --nc-* on the #nanocart-widget host.
- Admin API: base https://api.nanocart.io, header `x-api-key: sc_live_...` (SECRET —
  server-side only). All prices in integer cents.
- Official AI coding-agent skill: https://cdn.nanocart.io/ai/nanocart-skill.zip
- Official MCP server (live store tools): npx nanocart-mcp, or hosted at
  https://mcp.nanocart.io/mcp?store=STORE_ID with Authorization: Bearer <api key>
- Dashboard: https://portal.nanocart.io · API reference: https://nanocart.io/docs

## Docs
- [Nanocart Overview](https://docs.nanocart.io/#getting-started-intro): What NanoCart is: embeddable cart widget + hosted storefronts
- [Service Tiers And Pricing](https://docs.nanocart.io/#getting-started-plans): Plans, limits, and pricing (0% transaction fees)
- [Widget Integration](https://docs.nanocart.io/#widget-installation): Embedding the widget: script tag (data-store-id), buttons, theming
- [Products](https://docs.nanocart.io/#products-managing): Products, variants, digital downloads
- [Categories](https://docs.nanocart.io/#products-managing): Categories and organization
- [Image Uploads](https://docs.nanocart.io/#products-managing): Image and file uploads (presigned)
- [Hosted Storefront](https://docs.nanocart.io/#storefront-overview): Hosted storefronts, templates
- [Storefront Customization](https://docs.nanocart.io/#storefront-templates): Storefront customization
- [Stripe Setup](https://docs.nanocart.io/#payments-stripe): Stripe setup: test vs live keys, webhooks
- [PayPal Setup](https://docs.nanocart.io/#payments-paypal): PayPal setup: sandbox vs live
- [Orders](https://docs.nanocart.io/#orders-management): Order management, refunds, resends
- [Shipping](https://docs.nanocart.io/#shipping-overview): Shipping methods and local pickup
- [Coupons](https://docs.nanocart.io/#coupons-overview): Coupons and discounts
- [Tax Configuration](https://docs.nanocart.io/#settings-tax): Sales tax: master toggle, Stripe Tax, flat rate
- [Reports And Analytics](https://docs.nanocart.io/#analytics-overview): Analytics and reports (incl. tax collected)
- [API And Authentication](https://docs.nanocart.io/#settings-api): API keys and authentication
- [Webhooks](https://docs.nanocart.io/#settings-api): Signed webhooks
- [Admin Panel Overview](https://docs.nanocart.io/#settings-store): Admin dashboard overview
- [Billing And Subscriptions](https://docs.nanocart.io/#billing-overview): Billing and subscriptions
- [Troubleshooting And FAQ](https://docs.nanocart.io/#getting-started-intro): Troubleshooting and FAQ

## Optional
- [API reference (all public + admin endpoints)](https://nanocart.io/docs)
- [Full docs corpus for AI](https://docs.nanocart.io/llms-full.txt)