{"type":"firestarter.listing","listing":{"id":"lst_jS-yHeZU","product_name":"Nigella Black Cumin Seeds (Whole)","category":"Herbs & Spices","description":"Nigella seeds bring a unique, slightly peppery flavor to Middle Eastern and Indian dishes.\nKnown by many names—onion seed, black cumin seed, and kalonji—nigella seeds offer a mild, peppery taste with hints of onion. Essential for Middle Eastern and Indian cuisine, they add depth to curries, flatbreads, and pickles.\nDetails: Certified organic. Origin Egypt.\nZero-Waste Spice Refills Packaged in Compostable Packaging:\n\n\nSmall Refill: scant 1/4 cup volume (1.1 oz net weight)\n\nLarge Refill: 1/2 cup volume (3.0 oz net weight)\n\nRefill packaging is made from plants and is safe for home composting. It's not meant for long-term storage; please transfer it to an airtight container. 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/products/nigella-seeds-1.jpg?v=1541653285"],"price":4.5,"currency":"USD","in_stock":true,"inventory_qty":39996,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:12.245Z"},"share_url":"https://firestarter.network/l/lst_jS-yHeZU","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_jS-yHeZU' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Nigella Black Cumin Seeds (Whole)' and a budget_max comfortably above $4.50 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."]}}