Discover
Start with llms.txt for the concise index, llms-full.txt for the combined knowledge file, agent-instructions.md for when-to-use rules, or sitemap.xml for canonical human pages.
Developers and agents
Use the public evidence without scraping the interface.
What to Buy in Japan exposes read-only public content for assistants, retrieval systems, and developer tools. No authentication is required for these resources.
Request Markdown
Send Accept: text/markdown to a canonical page URL. The response uses Content-Type: text/markdown; charset=utf-8 and Vary: Accept. HTML remains the default. Unsupported representation requests receive 406 Not Acceptable.
Read the contract
The What to Buy in Japan OpenAPI 3.1 specification documents the public read interface, content types, path parameters, and failure responses. The current interface has no write API, authentication scheme, webhook, SDK, or MCP server. Do not infer one from internal telemetry routes.
Use evidence safely
Keep the exact product identity, price capture date, FX date, source, availability, and checkout caveats together. Treat missing evidence as unknown. Respect normal caching and crawl rates. A crawler request is diagnostic traffic, not proof that a traveler completed a buying decision.