{"type":"firestarter.listing","listing":{"id":"lst_-ZftoFYQ","product_name":"Celery Seeds","category":"Spices","description":"Celery seed shares the grassy and slightly bitter flavors of green celery tops. It pairs well with beef. Or, use celery seed in sour cream and mayo-based dressings for coleslaw.","images":["https://cdn.shopify.com/s/files/1/0604/1077/products/Celery_Seed_600px.jpg?v=1621970513"],"price":6.75,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:10.912Z"},"share_url":"https://firestarter.network/l/lst_-ZftoFYQ","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_-ZftoFYQ' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Celery Seeds' and a budget_max comfortably above $6.75 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."]}}