{"type":"firestarter.listing","listing":{"id":"lst_M5DRACgW","product_name":"Jeff McCallum Quad Pivot - Red - Snap In","category":"Surfboard Fin - Quad - Snap In","description":"Surfboard craftsman Jeff McCallum translated his design prowess into this medium-sized, fiberglass quad-fin built for tight turns in the pocket. It's great for your retro fishes, hybrids and wide, squash-tail boards.","images":["https://cdn.shopify.com/s/files/1/0246/1035/files/CFSI422002_RED_F.png?v=1684350536","https://cdn.shopify.com/s/files/1/0246/1035/files/CFSI422002_RED_B.png?v=1684350536","https://cdn.shopify.com/s/files/1/0246/1035/files/CFSI422002_RED_2.png?v=1684350536","https://cdn.shopify.com/s/files/1/0246/1035/files/CFSI422002_RED_3.png?v=1684346082"],"price":70,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:27.614Z"},"share_url":"https://firestarter.network/l/lst_M5DRACgW","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_M5DRACgW' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Jeff McCallum Quad Pivot - Red - Snap In' and a budget_max comfortably above $70.00 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."]}}