> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://ordergroove.ferndocs.com/docs/the-subscription-lifecycle/enrollment/core-concepts/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://ordergroove.ferndocs.com/_mcp/server.

# Core Concepts

> APIs, SDKs, and guides for building subscription commerce with Ordergroove.

## Docs

- [Offer Tagging](https://ordergroove.ferndocs.com/docs/the-subscription-lifecycle/enrollment/core-concepts/offer-tagging.md)
- [Tagging the Product Details Page (PDP)](https://ordergroove.ferndocs.com/docs/the-subscription-lifecycle/enrollment/core-concepts/tagging-the-product-details-page-pdp.md)
- [Cart Opt-In Tagging](https://ordergroove.ferndocs.com/docs/the-subscription-lifecycle/enrollment/core-concepts/cart-opt-in-tagging.md)
- [Subscription Creation via Purchase POST](https://ordergroove.ferndocs.com/docs/the-subscription-lifecycle/enrollment/core-concepts/subscription-creation-via-purchase-post.md)