BuyWhere is a product catalog API and MCP server for AI agents. One endpoint, one schema, 900,000+ merchants in the US and Singapore. Search and compare without scraping or per-merchant integration.

Keyless GET (live)

curl "https://api.buywhere.ai/v1/products/search?q=wireless%20headphones&deliver_to=US&limit=3"

No API key required for read endpoints — register for higher rate limits and key-attributed analytics.

Discovery endpoints

MCP endpoint — api.buywhere.ai/mcp
llms.txt — full agent reference
.well-known/api-catalog — machine-readable catalog
.well-known/agent.json — agent card
Developer portal