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01Agentic commerce

How to sell to AI agents.

Agentic commerce is commerce where an AI agent does the shopping: it discovers products, compares them, checks out, and pays on a person's behalf, without a human clicking through your store. To sell into it, your store has to be readable by agents, able to prove who the agent is, and able to complete a purchase the agent can call directly.

Make your store agent-ready → How the protocols fit
Selling to agents means letting an agent buy from your store. It is not a support chatbot, and not selling an AI agent as a product. This page is about an agent arriving as a buyer.
02The mechanics

The four things every agent transaction needs.

Strip away the vocabulary and every agent purchase rests on four steps, the same four a human checkout has, rearranged for a machine buyer.

  • Discovery. The agent finds your products in a form it can read: a machine-readable catalog, a discovery manifest, and clean structured data.
  • Identity. You verify which agent is calling and whether it is allowed to act for its user, with a know-your-agent credential your store checks.
  • Checkout. The agent completes a purchase through a checkout it can call directly, an API surface, not a web form.
  • Settlement. The money moves and clears on whatever rail the agent and store support, with a receipt both sides can verify.

Get those four right and an agent can buy from you. Miss one and the agent bounces, the same way a broken checkout loses a human.

03The landscape

The protocols, by layer.

A handful of open protocols have grown up around those four steps. They are layers, not rivals, and a store supports the ones its buyers use.

  • MCP (Model Context Protocol): the transport, how an agent calls typed tools. Not commerce.
  • agents.txt: a discovery manifest that tells an agent where your agent surface is.
  • ACP (Agentic Commerce Protocol): a checkout standard, a product feed, a checkout API, and a payment token.
  • UCP (Universal Commerce Protocol): a full-journey standard from discovery through checkout.
  • x402: HTTP-native payments that settle in USDC on-chain.
  • Escrow (for example Boson): holds funds until the order is fulfilled, then releases.
  • Know your agent: a verifiable credential that says who the agent is and who it acts for.

These compose. An agent can be identified by a know-your-agent credential, discover your store through agents.txt, check out through ACP or UCP, and settle through x402 or a card rail, all in one purchase. See how the protocols fit together.

04Getting ready

How any store gets ready.

You do not need to rebuild your store, and you do not need to bet on one protocol.

  • Be readable. Publish clean structured data and a discovery manifest so an agent can find and understand your catalog.
  • Be verifiable. Accept a know-your-agent credential so you can tell a legitimate buyer's agent from a scraper.
  • Be callable. Expose a checkout an agent can complete directly, across the rails your buyers use.
  • Keep a receipt. Make every agent transaction produce a verifiable, auditable record.

This is the layer Facet provides, installed above your existing store. It rides the open rails rather than replacing them, and it is non-custodial by design: funds settle on-chain, into your own or connected account, or into escrow, and never into a Facet-held balance. Facet also stewards the open agents.txt discovery manifest.

05Straight answers

Questions about selling to agents.

What is agentic commerce?+
Commerce where an AI agent discovers, compares, checks out, and pays for products on a person's behalf, without a human operating the store's interface.
How do I use agentic AI in my ecommerce store?+
Make the store readable by agents, verifiable with a know-your-agent credential, and callable with a direct checkout, then keep a verifiable receipt of each transaction. You add it above your existing store rather than rebuilding it.
Is selling to AI agents the same as selling an AI agent?+
No. Selling to AI agents means letting an agent buy from your store. Selling an AI agent means offering an agent as a product. This page is about the first.
Do I have to choose between ACP, UCP, and the other protocols?+
No. They are layers, not rivals. A store supports the ones its buyers use, and they compose within a single purchase.
Is agentic commerce custodial? Does a middleman hold my money?+
It does not have to be. In a non-custodial setup, funds settle on-chain, into your own or connected account, or into escrow, and clear to you. No intermediary holds a balance.

Make your store agent-ready.

Connect your store, verify your domain, set a payout address. About five minutes, no theme changes, your human-facing site untouched.

Make your store agent-ready →
✓ About five minutes ✓ Non-custodial ✓ Site untouched ✓ Any platform