Blog
Data reports, guides and analysis on UCP and agentic commerce, from the radar's team.
Guide
PrestaShop and UCP: how to publish your profile for AI agents
PrestaShop does not publish a UCP profile on its own — Shopify does. What being outside agentic commerce means, and how to publish your store's profile today.
Read →Report
State of Agentic Commerce — Q3 2026
100% of active UCP stores already accept AI agents over MCP, yet none publishes signing keys and the platforms that dominate Spain still have no bridge to the protocol. Mercatian radar data, July 2026.
Read →Guide
What is UCP (Universal Commerce Protocol): the complete guide
A practical guide to the Universal Commerce Protocol: how it works, who is behind it, Google's rollout calendar and what it means for European stores.
Read →