BirkinBagStock
Independent Hermès resale index: inventory, market prices, auction calendar and results

Real-time product catalog API for AI agents across merchants in 7 countries (SG, MY, TH, VN, PH, ID, US).
BuyWhere API is a free Shopping API that requires apiKey authentication, is served over HTTPS and has unconfirmed CORS support.
Compare products and prices across 900,000+ retailers in Singapore and the United States. One search, server-rendered tables, and a REST + MCP API for builders.
Details from buywhere.ai.

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Independent Hermès resale index: inventory, market prices, auction calendar and results
The BuyWhere API is provided by BuyWhere (buywhere.ai). Compare products and prices across 900,000+ retailers in Singapore and the United States. One search, server-rendered tables, and a REST + MCP API for builders.
Yes. The BuyWhere API is listed in the Shopping category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
Yes. The BuyWhere API uses apiKey authentication, so you need to register for credentials before making requests.
CORS support for the BuyWhere API is unknown. Test a request from the browser, and fall back to a server-side call if it is blocked.
Yes. The BuyWhere API is served over HTTPS, so it's safe to use in production.