Overview
A shop an AI agent can buy from, with proof of what was agreed
This shop was built in three parts, and each one is shown in this panel.
- Studio build. A written description sent to the Integra Demo Studio became a complete shop in about four and a half minutes.
- AI design. The Studio's shop was finished: official logos, real product photos from Printify, a light look.
- Full functionality, added with Claude. The catalogue read from Printify, printing and shipping through Printify, and the terms by their hash. Checkout is coming soon, with payment in crypto from a wallet.
The point: the appliance comes with every Studio shop
Every shop the Studio makes is wired to Integra's appliance from its first minute, without the shop writing any of it. For every purchase the appliance issues an agreement record: what was sold, at what price, to whom it is paid, and under which terms. The record's SHA-256, called H, rides inside the payment itself, so a payment can only settle to the payee its agreement names, and anyone can later prove which terms a buyer accepted, from public data alone.
| What the shop wrote | a description, and about 580 lines the Studio's model generated: pages, product list, terms, look |
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| What it got for free | about 28,000 lines of Integra's kit: the appliance's agreement records, payment bound to H, proof pages, and doors for AI agents (UCP, MCP, A2A, MPP, AP2, x402) |
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| How it rates | Integra Lens: all four stages for the Studio shop: Discoverable, Agreeable, Transactable, Provable |
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Two shops, one design
- The Studio shop (integra-lens-merch-live.demos.integraledger.net) is fully wired to the appliance. AI agents buy there on a test network, and every purchase has its agreement record and proof page.
- This shop (integralens.store) sells eight products printed and shipped by Printify. Its checkout is coming soon, with payment in crypto from a wallet; recording those orders as agreements in the appliance comes with it.
Part 1 of 3 · Generated by the Integra Demo Studio
Studio build
The shop began as a written description sent to the Integra Demo Studio (studio.integraledger.net). Here it is exactly as the Studio generated it, with nothing changed by hand:
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The prompt, in two parts
Make the Integra Lens Merch Shop: official merchandise for Integra Lens … and for the Legal Context Protocol (LCP) … Design it as a polished, modern apparel brand's shop … The seller is Integra Ledger, Inc. Prices are in US dollars, exclude sales tax, and hold until 2026-12-31.
The second part asked for complete terms of sale (ordering, payment, shipping, 30-day returns, refunds, liability, privacy, governing law), an artwork licence (the printed images may be used only as part of the product). One long prompt was cut off at the model's limit; two shorter turns built cleanly.
What the Studio produced
| Built in | about 4½ minutes, two turns |
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| Written by the model | about 580 lines: pages, product list (business.json), terms, look |
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| Supplied by the kit | about 28,000 lines: checkout, the appliance's agreements, agent doors, proof pages |
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| Studio's own checks | 12 of 12 passed: build, every page at desktop and phone width, contrast, every product taken to checkout as an agent shops |
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| Integra Lens | all four stages |
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A gap found on the way: the Studio could not state the seller's legal name, the tax basis or how long prices hold. That was added to the Studio the same day (Studio v2), and the shop generated again.
Open the Demo Studio ↗
Part 2 of 3 · The design pass
AI design
The Studio's shop was finished in a separate, visible pass, with AI tools and by hand.
- Official logos. The Integra Lens and LCP marks are the real artwork files. An image model never draws a logo here: on its own it garbles lettering.
- Photographs. The hero and the sweatshirt's photos are Printify's own mockups of the real blank it prints on, made in Printify's mockup tool and read through its API.
- A light look in place of the Studio's dark one, a two-column product page, and faults in the generated code fixed: a button whose label was green on green, and a React hook used out of order.
- Print files for Printify: 4500 × 5400 px at 300 DPI, transparent, with the official marks.
The Studio's own checks were run again after the pass: 12 of 12. The design pass touched only the shop's own files; the appliance wiring in the kit was left exactly as the Studio made it.
See the designed Studio shop ↗Its Lens report ↗
Part 3 of 3 · Added with Claude
Full functionality
This shop, integralens.store, is the designed shop wired to real services. You can browse and fill a cart; checkout is coming soon, so nothing can be bought yet.
The catalogue: Printify
The products are made in Printify and read from Printify's API: titles, descriptions, prices, sizes and every picture, the main one first. When a product changes in Printify, one sync brings the shop up to date, and the shop tells Printify each product is published, with its page's address.
The terms, by their hash
The terms of sale are published at /terms.md, and their SHA-256 at /.well-known/legal-context.json, where the Legal Context Protocol says an agent should look. Each order will carry that hash, so it records which terms were accepted.
Payment: coming soon
Checkout will take payment in crypto, from a wallet. Until it opens, the checkout page shows the cart and says so.
Printing and shipping: Printify
A paid order will go to Printify through its API: product, colour, size, quantity and address. Orders wait in Printify for approval before anything is printed.
See the products
Deep dive
The appliance: what every Studio shop is wired to
Integra's appliance is the service that turns a purchase into an agreement anyone can check. A Studio shop is wired to it by Integra's kit, so the shop itself writes none of what follows: it describes its products and terms in business.json, and the kit does the rest.
1 · An agreement for every purchase
When a buyer, a person or an AI agent, starts to buy, the appliance issues an agreement record for that purchase: the offer, the price and currency, the network and token, who is paid, the address and hash of the terms, and what the buyer gave (a name, an address, a size). The record's SHA-256 is H.
2 · H rides inside the payment
The payment carries H itself. On the x402 rail the buyer's signed USDC authorization (EIP-3009) uses H as its nonce; under MPP and AP2 it rides in the credential and the mandates. Integra's facilitator settles a payment only to the payee of the agreement at the H it carries. So the money cannot go anywhere the agreement does not say, and the payment on the public ledger points back to its agreement.
3 · The agreement store
The record is kept in the agreement store (atr.demos.integraledger.net): written by the appliance under a signature, and readable by anyone as its exact bytes at /atr/<H>. Hash those bytes and you get H again. (The demonstration store keeps an agreement for 30 days.)
4 · A proof page for every purchase
Every purchase gets /proof/<H> on the shop: the agreement, hashed again in your browser; the same value shown in each of the places it lives; where the money went; the agent's signature, where there was one; and each check as a command to run yourself.
5 · Doors for AI agents, all carrying H
| HTTP and x402 | /buy/<offer> answers 402 with a payment challenge that names H |
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| UCP | checkout over REST (/checkout-sessions) and over MCP (create_checkout … complete_checkout), with orders and webhooks |
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| A2A | an agent card and the skills search_catalog, get_terms, negotiate, buy |
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| MPP, AP2 | the same agreement, carried in MPP's credential and AP2's mandates |
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| Published | legal-context.json, terms.md, the UCP profile, OpenAPI, llms.txt, the AI catalog, the MCP server card |
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A real purchase you can check
On 3 October 2026, Integra Lens made a test purchase from the Studio shop. We checked every link of it:
| H | 0x50ecfbf0acd3456730ff83829437393b161fc5542f54b341d0802bea1415134a |
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| The agreement record | 2,958 bytes at the agreement store; its SHA-256 is exactly H |
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| The payment | 0xf6380eaa…a379e on Base Sepolia, succeeded, carrying H |
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| Integra Lens | verified the binding from public data alone: the stage Provable |
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Its proof page ↗The agreement record ↗The payment ↗
How easy it is
- Describe the shop to the Studio. It writes
business.json (products, prices, terms, seller) and the pages.
- Publish. The kit wires the appliance, the payment binding, the proof pages and every agent door. No line of it is the shop's to write.
- Check it with Integra Lens. This shop's Studio version reaches all four stages.
integralens.store's checkout, when it opens with payment from a crypto wallet, follows the same pattern: issue the agreement, carry H in the payment, and keep the record in the store.
For developers
Specs
What an agent reads on integralens.store
/.well-known/legal-context.json | the terms' address, format and SHA-256 (Legal Context Protocol) |
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/terms.md | the terms of sale, as served and hashed |
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/products.json | the catalogue, in Shopify's format |
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/llms.txt, /sitemap.xml | where an agent starts |
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| product pages | schema.org data: price, currency, tax basis, delivery, how long the price holds |
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The shop's API
GET /api/printify/catalogue | the products as Printify holds them: titles, prices, variants, pictures |
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| Printify | a paid order becomes POST /v1/shops/{shop}/orders.json, held until approved (once checkout opens) |
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Integra Lens's results
| The Studio shop | all four stages · 25 checks met |
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| integralens.store | Discoverable and Agreeable · 17 checks met (3 October 2026). Checkout is not open yet; the agent-payment stages belong to the Studio shop. |
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How it runs
integralens.store is a Cloudflare Worker: the pages are static files, and only /api/* runs code. The Printify token lives in Cloudflare, never in the code. The Studio shop runs on Integra's demo hosting, with the appliance, the agreement store, the facilitator and the buyer agent behind it.
This shop's Lens report ↗Check any site with Integra Lens ↗
