{"type":"firestarter.listing","listing":{"id":"lst_c7wEu0gM","product_name":"H&R Super Sport Springs (2.0\" drop) - Audi / B8 / A4 / S4","category":"Suspension > Springs","description":"Every spring produced by H&amp;R comes from the H&amp;R ISO 9001 certified engineering and manufacturing facility in Germany. All H&amp;R springs are produced from a special 54SiCr6 spring steel, which has strength rated at 290,000 psi resulting in unrivaled tensile strength and resiliency.Only from H&amp;R, H&amp;R Super Sport Springs have all the features of Sport Springs, plus additional lowering—great for the seasoned enthusiast looking for a little more. These high tech progressive springs retain superior ride comfort. The handling of your vehicle will be improved with a lower center of gravity. H&amp;R Super Sport Springs give your vehicle the best-looking performance stance.Features\n\nLowers 1.75 - 2.3 inches on average\nProvides superior ride and maximum lowering\n\n","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/50361-77.jpg?v=1783983375"],"price":373.15,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-14T01:31:31.967Z"},"share_url":"https://firestarter.network/l/lst_c7wEu0gM","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_c7wEu0gM' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy H&R Super Sport Springs (2.0\" drop) - Audi / B8 / A4 / S4' and a budget_max comfortably above $373.15 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}