{"type":"firestarter.listing","listing":{"id":"lst_uQOhSzLJ","product_name":"Onyx Flatback Piercing","category":"Body Jewelry","description":"\n\nBeautiful and powerful, it is believed that black onyx brings protection to its wearer, and with our threadless flatback onyx piercing you’ll be protected from your earring post even while you sleep. This gorgeous cabochon gemstone stud is made with solid 14k gold so you can wear this dainty body piercing everywhere. Our flat backs are crafted only in 14k yellow gold to avoid sensitivity.\nLove this style? Check out our Onyx Stud Earrings.\n","images":["https://cdn.shopify.com/s/files/1/2065/2103/files/onyx-flatback-piercing-real-gold.jpg?v=1722843789","https://cdn.shopify.com/s/files/1/2065/2103/files/gold-flat-back-onyx-stud_2.jpg?v=1745007339","https://cdn.shopify.com/s/files/1/2065/2103/files/flatback-earring-backings-14k-gold_24.jpg?v=1722843818","https://cdn.shopify.com/s/files/1/2065/2103/files/rose-gold-onyx-flatback-earring.jpg?v=1760636406","https://cdn.shopify.com/s/files/1/2065/2103/files/white-gold-onyx-flatback-earring.jpg?v=1760636406"],"price":247,"currency":"USD","in_stock":true,"inventory_qty":159984,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:43.059Z"},"share_url":"https://firestarter.network/l/lst_uQOhSzLJ","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 ","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_uQOhSzLJ' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Onyx Flatback Piercing' and a budget_max comfortably above $247.00 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."]}}