BuyWhere Singapore Value Intelligence API

Semantic product search over Singapore e-commerce with auditable value-scores derived from Shannon entropy across vendor price distributions.

Skills

• Rank BuyWhere Products by Value Score
  Searches the BuyWhere Singapore catalogue for products matching a natural-language query and returns them ranked by an auditable value-score derived from Shannon entropy of cross-vendor price variance, causal reliability, and price rank. Do NOT use for real-time stock ticker data, non-SGD markets, or exact product ID lookup. Requires a valid api_key (same as X-API-Key) and an x402 payment.
  product-searchprice-comparisonsingapore-ecommerce
• Fetch Vendor Price Distribution for SKU
  Given a BuyWhere product identifier, returns the full cross-vendor price distribution in SGD along with the Shannon entropy of that distribution and the coefficient of variation. Do NOT use as a discovery tool -- requires a known BuyWhere product_id from rank_buywhere_products_by_value_score. Requires a valid api_key (same as X-API-Key) and an x402 payment.
  price-distributionentropy

How to call

https://useful-data-source-for-agents-production.up.railway.app

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