Blog

Data reports, guides and analysis on UCP and agentic commerce, from the radar's team.

ReportJuly 23, 2026

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.

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GuideJuly 22, 2026

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.

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