{"type":"firestarter.listing","listing":{"id":"lst_NiqtZCDs","product_name":"H&R 60mm ID Single Race Spring | Length 250mm | Spring Rate 90 N/mm or 514 lbs/inch","category":"Race Dept > Suspension > Linear Springs","description":"Inside Diameter: 60mm ID Length: 250mm Spring Rate: 90 N/mm or 514 lbs/inch  H&amp;R was founded by Werner Heine and Heinz Remmen in the 1970's with a simple idea in mind; with improved suspension, vehicles would have more control and better handling.","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/60mmidrace_40b26e5e-e0b8-413c-8b4b-52101c89d072.png?v=1783986134"],"price":316,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-14T01:31:31.314Z"},"share_url":"https://firestarter.network/l/lst_NiqtZCDs","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_NiqtZCDs' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy H&R 60mm ID Single Race Spring | Length 250mm | Spring Rate 90 N/mm or 514 lbs/inch' and a budget_max comfortably above $316.00 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."]}}