{"type":"firestarter.listing","listing":{"id":"lst_zXyOh-q0","product_name":"Spartacus Asparagus Seeds","category":"Seeds & Plants","description":"'Spartacus' is a vigorous, 100% male hybrid producing 8–10\" spears. Patience is a virtue as harvest begins in the third year, but plants can thrive for up to 12 years. Male sterile plants don’t produce berries, so all the plant’s energy goes into crown and root development, resulting in higher yields, stronger plants, and cleaner plots with no volunteer seedlings. Perennial in USDA zones 3–10. Seeds may have an inert organic coating to improve visibility for planting.","images":["https://cdn.shopify.com/s/files/1/0658/5693/0045/files/0008i_Asparagus-Spartacus.jpg?v=1779318136","https://cdn.shopify.com/s/files/1/0658/5693/0045/files/0008si_Asparagus-Spartacus.jpg?v=1779318136","https://cdn.shopify.com/s/files/1/0658/5693/0045/files/0008w_Asparagus-Spartacus.jpg?v=1779318136"],"price":7.49,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-07-03T16:15:20.719Z"},"share_url":"https://firestarter.network/l/lst_zXyOh-q0","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_zXyOh-q0' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Spartacus Asparagus Seeds' and a budget_max comfortably above $7.49 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."]}}