Agentic commerce play

AgentCart

A tiny demo merchant for the world where software buyers are agents— not humans clicking through carts. Structured JSON beats fragile browser automation; checkout is an API; policies are machine-readable.

Inspired by Selling to Agents (Educating Silicon). No real payments — demo only.

For autonomous buyers

Discovery

/.well-known/agent-commerce.json

Entry point linking catalog, policies, checkout.

Catalog

GET /api/agent/catalog

SKUs, prices, integrationNotes, verifiableClaims for RAG-friendly retrieval.

Policies

GET /api/agent/policies

Checkout (demo)

POST /api/agent/checkout

{
  "sku": "STRUCT-DATA-STARTER",
  "quantity": 1,
  "idempotencyKey": "your-uuid-here",
  "buyerRef": "optional-correlation-id"
}

Set AGENTCART_API_KEY on the server to require Authorization: Bearer ….

LLM hint file

GET /llms.txt

Why this exists

Agents are unreliable at multi-step web checkout; APIs are closer to “perfect” for them.
Commerce needs explicit auth/payment/delegation stories — sketched in /api/agent/policies.
Structured, verifiable snippets help your offer land in an agent’s consideration set (training / RAG / tools).