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The evergreen reference. What agentic commerce is, how the protocols work, and how agents actually pay. Start here if the field is new to you.
Agentic Commerce Glossary
Plain-language definitions of the key agentic commerce terms and acronyms: agent, mandate, ACP, AP2, UCP, MCP, x402, tokenization, universal cart, and more.
The Agentic Commerce Protocol Stack: ACP vs AP2 vs UCP vs MCP vs x402
A neutral, plain-language comparison of the protocols behind agentic commerce: ACP, AP2, UCP, MCP, A2A, and x402. What each one does, who backs it, and how they fit together.
What Is Agentic Commerce?
A plain-language explanation of agentic commerce: AI agents that browse, choose, and pay on a person's behalf. How it works, why it is happening now, and who the players are.