UCP for WooCommerce (Reference Implementation)

EXPERIMENTAL/TEST ONLY - Reference implementation of UCP for WooCommerce. NOT official. Will be deprecated.

by Reference · github.com/jameswlepage/ucp-woocommerce

★ 1stars

Install

Download source zip No release zip yet

This is the repository archive. It installs, but the folder name will carry the branch suffix and updates will not flow.

Install straight from GitHub with WP-CLI:

wp plugin install https://github.com/jameswlepage/ucp-woocommerce/archive/refs/heads/main.zip

No built-in updater. New versions won't appear under Dashboard → Updates. Install new releases yourself, or let Git Updater track the repository.

Readme github.com/jameswlepage/ucp-woocommerce ↗

DISCLAIMER: This is an experimental/test implementation only. It is NOT an official WooCommerce plugin and will be deprecated. Do not use in production.

Reference implementation of the Universal Commerce Protocol (UCP) 2026-01-11 for WooCommerce.

Features

Business profile at /.well-known/ucp
A2A agent-card stub at /.well-known/agent-card.json
REST endpoints (native checkout):
- POST /wp-json/ucp/v1/checkout-sessions
- PATCH /wp-json/ucp/v1/checkout-sessions/{id}
- POST /wp-json/ucp/v1/checkout-sessions/{id}/complete
MCP (JSON-RPC 2.0) endpoint:
- POST /wp-json/ucp/v1/mcp

Requirements

WordPress 6.0+
PHP 8.0+
WooCommerce

Security

All transport must be HTTPS (the plugin checks webhook URLs and platform profile URLs are https)
Optional bearer auth: set WordPress option ucp_wc_bearer_token to require Authorization: Bearer <token> on REST endpoints

Notes

This implementation creates WooCommerce orders on complete and stores payment credentials opaquely in order meta
It does not attempt to capture funds; integrate with your PSP/gateway to process the received credential

License

GPLv2 or later