--- title: "AI agents — the machine-readable SwiftShop.pl interface" description: "SwiftShop.pl exposes its catalogue over the Model Context Protocol and its checkout over the Agentic Commerce Protocol, plus llms.txt, structured data and a JSON market-data endpoint, so AI systems can discover, read and buy." lang: en url: https://swiftshop.pl/ai-agents/ markdown_url: https://swiftshop.pl/ai-agents/index.md section: agents updated: 2026-10-10 sources: - id: llmstxt org: "llmstxt.org" url: https://llmstxt.org/ date: 2024-09-01 - id: acp_openai org: "OpenAI" url: https://openai.com/index/buy-it-in-chatgpt/ date: 2025-09-29 - id: acp_spec org: "Agentic Commerce Protocol" url: https://www.agenticcommerce.dev/ date: 2025-09-29 - id: acp_stripe org: "Stripe" url: https://docs.stripe.com/agentic-commerce/acp date: 2025-10-01 --- # The interface we publish for machines. Most shops hope an AI will scrape them. We publish a contract: a catalogue an agent can query, a checkout an agent can complete, and a crawl policy that says yes instead of maybe. ## Five machine-readable surfaces **Machine-facing surfaces published by SwiftShop.pl** | Surface | Path | Format | Purpose | |---|---|---|---| | MCP server | /mcp | Model Context Protocol | Tools for search, product detail, stock, delivery promise and configuration. Read-only unless an authenticated session grants more. | | ACP checkout | /.well-known/acp.json | JSON + REST | Declares the checkout endpoint, capabilities, payment handlers, fulfillment options and per-agent spend policy. | | LLM index | /llms.txt, /llms-full.txt | Markdown | A curated map and a full-text mirror of this site, so a model reads prose instead of parsing a layout.[1] | | Structured data | every page | JSON-LD (schema.org) | Organization, WebSite, SoftwareApplication, Offer, FAQPage and BreadcrumbList, with real prices and real availability. | | Data endpoint | /data/market-data.json | JSON | The same sourced market figures a human reads, with per-record source and verification status. | ## Why ACP and not a bespoke integration > ACP was released on 29 September 2025 by OpenAI and Stripe, with Meta since joining as a co-maintainer, under Apache-2.0.[2][3] Betting on a closed format would make every future agent integration a negotiation. Betting on an open one makes it a configuration. ### Composable primitives Agentic checkout, cart and feed, delegated payment, delegated authentication, and order webhooks are defined separately, so we implement the ones a merchant needs.[4] ### Merchant of record stays you The merchant keeps the customer relationship across fulfillment, returns and support. The agent is a channel, not the store. ### Credentials never travel Payment credentials are passed as scoped tokens rather than being exposed to the agent. Approval happens in the customer's own banking app. ### REST or MCP, your choice The spec supports publishing checkout configuration over a conventional API or an MCP server, so adoption doesn't dictate your stack.[3] > **Note:** Honest limitation. Participation in any specific AI platform is controlled by that platform, not by us. Implementing ACP makes a merchant technically reachable; it does not guarantee placement, ranking or traffic. ## We let AI crawlers in, and we say so in the file > A robots.txt that silently blocks the assistants your customers use is a business decision disguised as a technical default. Our policy is explicit, machine-readable and generous — with one line drawn around bulk resale. ```text # --- AI answer engines: allowed, with attribution --- User-agent: GPTBot User-agent: OAI-SearchBot User-agent: ChatGPT-User User-agent: ClaudeBot User-agent: Claude-User User-agent: PerplexityBot User-agent: Google-Extended User-agent: Applebot-Extended User-agent: CCBot Allow: / # --- Bulk dataset harvesting: not allowed --- User-agent: Bytespider Disallow: / Sitemap: https://swiftshop.pl/sitemap.xml # LLM index: https://swiftshop.pl/llms.txt Content-Signal: search=yes, ai-input=yes, ai-train=no ``` The distinction matters. ai-input=yes means you may retrieve our pages to answer a user's question right now. ai-train=no means the content is not donated as training volume. Those are different asks and they deserve different answers. - Every page has a Markdown twin at the same path with a .md extension. - Every page declares that twin with . - Prices, stock and delivery promises are served as data, so an agent is never guessing from rendered pixels. - All copy is present in the initial HTML response — no JavaScript execution required to read it. ## What an agent is not allowed to do **Default agent policy** | Control | Default | Why | |---|---|---| | Spend ceiling without human approval | 2 000 PLN | Above this, the session pauses and asks the customer to approve in their banking app. | | Payment method access | Tokenised only | Raw card or BLIK credentials are never surfaced to the agent. | | Catalogue write access | None | Agents read and transact. They do not change prices, stock or copy. | | Order cancellation | Customer or merchant | Irreversible actions stay with the accountable party. | | Data shared per order | Minimum viable | Only what is needed to fulfil, nothing for profiling. | | Refund window | 14 days | Statutory consumer withdrawal right, applied uniformly. | ## Integrating an agent against SwiftShop **Spec access for integrators** — The MCP tool manifest and the ACP policy schema are available to design partners under the same open terms we ship under. - Request spec access: /contact/ - Read the platform layers: /platform/ ## Sources 1. llmstxt.org. [The /llms.txt proposal — a Markdown convention for LLM-friendly sites](https://llmstxt.org/) — 2024-09-01 2. OpenAI. [Buy it in ChatGPT: Instant Checkout and the Agentic Commerce Protocol](https://openai.com/index/buy-it-in-chatgpt/) — 2025-09-29 3. Agentic Commerce Protocol. [An open standard for programmatic commerce flows (Apache-2.0)](https://www.agenticcommerce.dev/) — 2025-09-29 4. Stripe. [Agentic Commerce Protocol — integration documentation](https://docs.stripe.com/agentic-commerce/acp) — 2025-10-01