{"type":"firestarter.listing","listing":{"id":"lst_gsBVzYn3","product_name":"Umami Mix (Salt-Free)","category":"Herbs & Spices","description":"Savory, yet salt-free blend for an instant umami boost.\nThis Umami Mix adds a rich, savory depth to any dish. Sprinkle it on roasted vegetables, stir into soups, or use as a rub for meats to unlock bold, earthy flavors. Perfect for adding that elusive umami-bomb to your next meal. This blend is MSG-free, but if you're a fan, mix it half and half for a true savory boost.\nDetails: Certified Organic. Hand-blended in house.\nIngredients: mushroom powder (shiitake, maitake, porcini), onion, garlic, mustard, smoked paprika, pepper, thyme, sage.\nZero-Waste Spice Refills Packaged in Compostable Packaging:\n\n\nSmall Refill: scant 1/4 cup volume (0.8 oz net weight)\n\nLarge Refill: 1/2 cup volume (2.0 oz net weight)\n\nRefill packaging is made from plants and safe for home composting. It's not meant for long-term storage; please transfer to airtight containers. Read about our zero-waste packaging here.\n\nReusable Glass Magnetic Jars:\n\n\nSmall Jar: scant 1/4 cup volume\n\nLarge Jar: 1/2 cup volume \n\n\n\nNew to Gneiss Spice? Check out our FAQs videos. Purchasing over a dozen jars? Buy a boxed custom kit and save over 10%.\n","images":["https://cdn.shopify.com/s/files/1/1030/2399/files/umamimix-2.jpg?v=1725128453"],"price":5.5,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:11.330Z"},"share_url":"https://firestarter.network/l/lst_gsBVzYn3","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_gsBVzYn3' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Umami Mix (Salt-Free)' and a budget_max comfortably above $5.50 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."]}}