{"name":"buystuff.ai","version":"1.0.0","description":"Simple agent e-commerce API for AI agents","website":"https://buystuff.ai","endpoints":{"search":"GET /search?q={query}&sort_by=...&category_id=...","product":"GET /product/:asin","getActiveCart":"GET /cart","addToCart":"POST /cart","getCart":"GET /cart/:cartId","updateItem":"PATCH /cart/:cartId/items/:asin","removeItem":"DELETE /cart/:cartId/items/:asin","checkout":"POST /cart/:cartId/checkout","confirm":"POST /cart/:cartId/confirm","getOrder":"GET /order/:orderId"},"session":{"header":"X-Session-ID","description":"Send X-Session-ID header to maintain session across requests. Auto-created on first request and returned in response header + body."}}