Title: Flx Commerce Author: rickey29 Published: Gwynngala 6, 2026 Last modified: Gwynngala 6, 2026 --- Search plugins ![](https://s.w.org/plugins/geopattern-icon/flx-commerce.svg) # Flx Commerce By [rickey29](https://profiles.wordpress.org/rickey29/) [Download](https://downloads.wordpress.org/plugin/flx-commerce.0.1.0.zip) * [Details](https://cor.wordpress.org/plugins/flx-commerce/#description) * [Reviews](https://cor.wordpress.org/plugins/flx-commerce/#reviews) * [Installation](https://cor.wordpress.org/plugins/flx-commerce/#installation) * [Development](https://cor.wordpress.org/plugins/flx-commerce/#developers) [Support](https://wordpress.org/support/plugin/flx-commerce/) ## Description Flx Commerce prepares an existing WooCommerce store to participate in AI-driven(“ agentic”) commerce by exposing reliable, machine-readable information about the merchant, its product catalog, and what the store can actually do — and by letting an external client drive a **real** WooCommerce cart, checkout, and order through the store’s own existing setup. WooCommerce remains the source of truth for every commerce fact this plugin exposes. Flx Commerce stores no products, carts, checkouts, orders, or customer data of its own; it reads from and acts through WooCommerce’s own APIs (including its Store API) at the time each request is made. #### What it does today * **Merchant discovery** — a public, read-only REST endpoint describing the store( name, URL, description), read live from WordPress’s own Site Title/Address/Tagline settings. * **Product discovery** — a public, read-only REST endpoint listing the store’s catalog, including simple, external, and variable products with their variations represented correctly (a variable product is never given a single fabricated price). Supports pagination. * **Commerce capability discovery** — a public REST endpoint reporting, truthfully, which of the capabilities below are actually implemented, so a client can check before attempting an operation instead of assuming. * **Real WooCommerce cart mutation** — add, view, update, and remove cart items via WooCommerce’s own Store API; no separate Flx cart exists. * **Shipping support** — set a billing/shipping address and select a shipping rate on the cart, again entirely through WooCommerce’s own Store API and shipping configuration. * **Real WooCommerce checkout handoff** — initiate WooCommerce checkout for a cart and receive a live preview (payment methods, totals, shipping) without placing an order or attempting payment. * **Real WooCommerce order creation, Cash on Delivery only** — place an actual` WC_Order` for a cart. Payment is restricted to Cash on Delivery (`cod`) for this release; **no online payment processing of any kind is implemented. * **UCP discovery/catalog adapter** — exposes the same product catalog through the [Universal Commerce Protocol](https://ucp.dev/)‘s discovery/catalog interface at `/.well-known/ucp` and a catalog.search REST endpoint. UCP checkout, payment, order creation, and `catalog.lookup` are **not** implemented. #### What it deliberately does not do (yet) * No online payment gateway integration. Cash on Delivery is the only supported order-creation method. * No support for `grouped` WooCommerce products. * No UCP checkout/payment/order, no ACP, no MCP shopping surface, and no search or ranking beyond returning the full catalog. * No analytics, tracking, telemetry, or calls to any external service. This plugin talks only to your own WordPress/WooCommerce install. * No new payment infrastructure, no replacement for WooCommerce checkout, and no AI chatbot — Flx Commerce is an adapter in front of WooCommerce, not a new commerce backend. #### Who this is for Store operators who want their existing WooCommerce store to be discoverable and machine-readable by AI shopping agents and other commerce clients, while keeping WooCommerce as the single source of truth for products, pricing, cart, checkout, and orders. ### Features * Public REST API under `/wp-json/flx-commerce/v1/`: - `GET /merchant` — merchant identity - `GET /products` — product/variant catalog, with pagination - `GET /capabilities` — truthful capability flags - `GET /cart`, `POST /cart`, `PUT /cart`, `DELETE /cart` — view/add/update/remove cart items - `POST /cart/address` — set billing/shipping address - `POST /cart/shipping-rate` — select a shipping rate - `POST /checkout` — initiate checkout (preview only, no order) - `POST /order` — place a real order (Cash on Delivery only) - `POST /ucp/catalog/search` — UCP catalog search adapter * `GET /.well-known/ucp` — the UCP merchant profile document * Session continuity via WooCommerce’s own Store API `Cart-Token` mechanism — no cookies or session storage of Flx’s own. ### Requirements * WordPress 6.5 or later. * PHP 7.4 or later. * [WooCommerce](https://wordpress.org/plugins/woocommerce/), installed and active. Flx Commerce does nothing on its own without it. ### Usage / API overview All endpoints are under your site’s REST API namespace, /wp-json/flx-commerce/v1/. Discovery endpoints (`/merchant`, /products, `/capabilities`, `/ucp/catalog/search`, and /.well-known/ucp) are public and read-only, matching a normal storefront’s own public product/catalog visibility. Cart, checkout, and order endpoints are also public, matching the same public/customer- facing model WooCommerce’s own Store API uses for storefront visitors — placing an order still only does what WooCommerce itself would allow an anonymous customer to do. A first cart mutation returns a `Cart-Token` response header; send it back as a `Cart-Token` request header on subsequent calls to keep acting on the same cart. Order creation additionally validates that `Cart-Token` and rejects any payment_method other than `cod`. ### Limitations * Cash on Delivery is the only supported `payment_method` for order creation. No other payment gateway can be used through this plugin’s /order endpoint, regardless of what is enabled in WooCommerce. * `grouped` WooCommerce products are not represented in product discovery or cart operations. * UCP support is limited to discovery/catalog (`/.well-known/ucp` and catalog. search); UCP checkout, payment, order, and catalog.lookup are not implemented. * No other AI-commerce protocol (ACP, MCP as a shopping surface, or similar) is implemented. * No search, filtering, or ranking is performed — `/products` and /ucp/catalog/ search return the store’s current catalog as-is. * There is no admin settings screen in this release. ## Installation 1. Ensure WooCommerce is installed and active. 2. Upload the `flx-commerce` folder to `/wp-content/plugins/`, or install the plugin ZIP through **Plugins Add New Upload Plugin** in wp-admin. 3. Activate **Flx Commerce** through the **Plugins** screen. 4. No configuration screen is required. Confirm the REST API responds by visiting`/ wp-json/flx-commerce/v1/capabilities` on your site. Activation registers the `/.well-known/ucp` route and flushes rewrite rules once; no other setup step is needed. ## FAQ ### Does this plugin process payments? No. `POST /order` can only create an order using Cash on Delivery (`cod`), which contacts no payment processor and moves no money. No online payment gateway integration exists in this release. ### Does this replace WooCommerce checkout? No. Flx Commerce delegates every cart, checkout, and order operation to WooCommerce’s own Store API and order-creation code. It adds a machine-readable REST surface in front of WooCommerce; it does not reimplement or replace any part of WooCommerce. ### Does this plugin store any of my store’s data? No. Merchant, product, cart, checkout, and order data are all read from or acted through WooCommerce’s own APIs at request time. The only data this plugin persists is a small internal option tracking its own installed version, used to manage its`/. well-known/ucp` rewrite rule safely — no store, product, customer, or order data. ### Does this plugin send data to any external service? No. Flx Commerce makes no outbound calls to any third-party or Flx-owned service. Its REST endpoints only ever talk to your own WordPress/WooCommerce install (via WordPress’s own internal REST dispatch and, for checkout/order, a loopback HTTP request to your own site’s REST API). ### What is UCP, and is it fully supported? UCP (Universal Commerce Protocol) is an open protocol for AI commerce discovery. This plugin implements only its discovery/catalog interface — a merchant profile document and a catalog-search endpoint. UCP checkout, payment, order creation, and product lookup are not implemented. ### Which product types are supported? Simple, external, and variable products (including their variations). Grouped products are not currently supported. ### Is there a settings page? No. This release has no configuration UI; behavior is either automatic (discovery endpoints) or governed by WooCommerce’s own store configuration (shipping, available payment methods, etc.). ## Reviews There are no reviews for this plugin. ## Contributors & Developers “Flx Commerce” is open source software. The following people have contributed to this plugin. Contributors * [ rickey29 ](https://profiles.wordpress.org/rickey29/) [Translate “Flx Commerce” into your language.](https://translate.wordpress.org/projects/wp-plugins/flx-commerce) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/flx-commerce/), check out the [SVN repository](https://plugins.svn.wordpress.org/flx-commerce/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/flx-commerce/) by [RSS](https://plugins.trac.wordpress.org/log/flx-commerce/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 0.1.0 * First public release. Merchant discovery, product/variant discovery, commerce capability discovery, real WooCommerce cart mutation, shipping address/rate support, checkout handoff, real order creation (Cash on Delivery only), and a UCP discovery/ catalog adapter. ## Meta * Version **0.1.0** * Last updated **1 dydh ago** * Active installations **Fewer than 10** * WordPress version ** 6.5 or higher ** * Tested up to **7.1** * PHP version ** 7.4 or higher ** * Language * [English (US)](https://wordpress.org/plugins/flx-commerce/) * Tags * [agentic-commerce](https://cor.wordpress.org/plugins/tags/agentic-commerce/)[ai-commerce](https://cor.wordpress.org/plugins/tags/ai-commerce/) [machine-readable](https://cor.wordpress.org/plugins/tags/machine-readable/)[rest-api](https://cor.wordpress.org/plugins/tags/rest-api/) [woocommerce](https://cor.wordpress.org/plugins/tags/woocommerce/) * [Advanced View](https://cor.wordpress.org/plugins/flx-commerce/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/flx-commerce/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/flx-commerce/reviews/) ## Contributors * [ rickey29 ](https://profiles.wordpress.org/rickey29/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/flx-commerce/)