{"type":"firestarter.listing","listing":{"id":"lst_yxt1sewe","product_name":"Baking Powder All-Natural","category":null,"description":"Fluff up your baking with our aluminum-free Double-Acting Baking Powder.\n Free of sodium aluminum sulfate, this baking powder releases leavening carbon dioxide in two stages—first at room temperature, then in the oven—giving your baked goods a perfect rise. All-natural, non-GMO, and gluten-free, it's an essential for any kitchen.\n Details: All natural and non-GMO. Gluten free. Aluminum Free. Origin USA.\n Ingredients: mono calcium phosphate, food-grade cornstarch (non-GMO), sodium bicarbonate (baking soda)\n Zero-Waste Spice Refills Packaged in Compostable Packaging:\n \n \n Small Refill: scant 1/4 cup volume (0.85 oz net weight)\n \n Large Refill: 1/2 cup volume (2.55 oz net weight)\n \n Refill 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 \n Reusable Glass Magnetic Jars:\n \n \n Small Jar: scant 1/4 cup volume\n \n Large Jar: 1/2 cup volume \n \n \n \n New to Gneiss Spice? Check out our FAQs videos. Purchasing over a dozen jars? Buy a boxed custom kit and save over 10%.","images":["https://cdn.shopify.com/s/files/1/1030/2399/products/baking_powdercopy.jpg?v=1773791108"],"price":3.5,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:12.127Z"},"share_url":"https://firestarter.network/l/lst_yxt1sewe","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_yxt1sewe' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Baking Powder All-Natural' and a budget_max comfortably above $3.50 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."]}}