{"type":"firestarter.listing","listing":{"id":"lst_XHlCncYm","product_name":"Watercress Seeds","category":"Seeds & Plants","description":"With a peppery and pungent flavor, this ancient plant is popular around the world for its nutritional and medicinal value. High in vitamins A, C, and K, as well as providing potassium and calcium, watercress has been studied for its antioxidant properties. At home along streams and lakes, watercress can also be grown in moist, partly shady gardens and indoors in containers.","images":["https://cdn.shopify.com/s/files/1/0658/5693/0045/files/6116i_Watercress-ORG_q86w0u_c49635af-5896-4b32-b7fa-8797e6812ec2.jpg?v=1773114714","https://cdn.shopify.com/s/files/1/0658/5693/0045/files/5061si_Watercress_dcb0304a-3d7a-4041-afba-b839abd066b9.jpg?v=1773114714","https://cdn.shopify.com/s/files/1/0658/5693/0045/files/6116w_Watercress-ORG_f8j3hs_c42b9e2a-e428-4abe-8dd7-db9537aac69b.jpg?v=1773114714","https://cdn.shopify.com/s/files/1/0658/5693/0045/files/watercress-seeds.jpg?v=1773114714"],"price":2.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:02.010Z"},"share_url":"https://firestarter.network/l/lst_XHlCncYm","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_XHlCncYm' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Watercress Seeds' and a budget_max comfortably above $2.99 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."]}}