cff-version: 1.2.0 message: "If you use ARC data or methods, please cite it as below." title: "ARC Agent Commerce Index: open benchmark of whether AI agents can actually buy" type: dataset authors: - family-names: Bryn given-names: Andy - name: "ARC (arcreport.ai)" version: "arc-method-2026.10" date-released: "2026-10-07" license: CC-BY-4.0 url: "https://www.arcreport.ai/data" repository: "https://www.arcreport.ai/CITATION.cff" abstract: "Weekly, dated, CC-BY-4.0 measurements of agentic commerce: protocol signals (UCP, MCP, WebMCP) per store, a cross-protocol matrix, and ARC browser cart test outcomes. Method changes are logged at https://www.arcreport.ai/methodology/changelog." keywords: - agentic commerce - benchmark - UCP - MCP - WebMCP - dataset