Annalist · the agentic-commerce census

casper.com

Last visit 2026-10-16 · from our weekly census of agent-ready commerce

Our last visit	ok
A store (platform, cart or checkout seen)	yes
Store platform	shopify
Agent checkout	ucp
UCP version	2026-08-25
ACP version	–
UCP checkout endpoint (MCP)	https://e75063-e5.myshopify.com/api/ucp/mcp
Payment handlers (UCP)	com.google.pay, dev.shopify.card, dev.shopify.shop_pay
Ships to (countries)	1
Currency	USD
Return window (days, published markup)	–
llms.txt	yes
A2A agent card	no
MCP server card	no
Sells over x402	no
AI agents blocked in robots.txt	none
Shopping agents blocked	none
Changes recorded (90 days)	0

Agent checkout (UCP 2026-08-25)

Capabilities: dev.shopify.catalog, common.identity_linking, buyer_consent, cart, catalog.lookup, catalog.search, checkout, discount, fulfillment, order, permalink
Payment handlers: com.google.pay, dev.shopify.card, dev.shopify.shop_pay
Fulfillment: shipping
Transports: embedded, mcp · endpoint https://e75063-e5.myshopify.com/api/ucp/mcp

Ships to (1): US

Verify it yourself. Ed25519 signature (base64url) over the RFC 8785 canonical JSON of `statement`, checked with the public key at https://api.annalist.dev/.well-known/annalist-key.json (key_id must match). Then check valid_until. It states what we measured at our last weekly visit; the visits are archived daily and each day's archive hashes are in the public ledger.

Signed statement: https://api.annalist.dev/v1/verify/store?domain=casper.com · full record with bot-by-bot rules: GET /v1/web/readiness?domain=casper.com (paid)

Store owners: show agents your checkout status. It updates weekly.

[![Agent checkout](https://api.annalist.dev/v1/verify/store-badge.svg?domain=casper.com)](https://annalist.dev/store/casper.com)

The state of agentic commerce →

The census records what each site publishes for machines (robots.txt, discovery files, a Shopify store's facts file and structured markup) at our weekly visit; it never reads policy pages and never buys anything. The signature proves Annalist issued a statement unchanged; the visits behind it are archived and hashed into the public ledger. Corrections: open an issue at github.com/ryanroskowski/annalist-ledger.