{"type":"firestarter.listing","listing":{"id":"lst_Yxmjh_0X","product_name":"FREE Linen Sample Card","category":"Sample","description":"This product is free of charge.  One sample card per customer. This card is shipped via USPS First Class envelope with postage stamps. No tracking available.","images":["https://cdn.shopify.com/s/files/1/1084/5358/files/freeswatchcard.jpg?v=1762440020","https://cdn.shopify.com/s/files/1/1084/5358/files/swatch.gif?v=1682549476","https://cdn.shopify.com/s/files/1/1084/5358/files/swatch_card_roughlinen_dsc0506.jpg?v=1682549565","https://cdn.shopify.com/s/files/1/1084/5358/files/swatch_card_roughlinen_dsc0577.jpg?v=1682549565","https://cdn.shopify.com/s/files/1/1084/5358/files/swatch_card_roughlinen_dsc0528.jpg?v=1682549565","https://cdn.shopify.com/s/files/1/1084/5358/files/swatch_card_roughlinen_dsc0536.jpg?v=1682549565","https://cdn.shopify.com/s/files/1/1084/5358/products/SwatchGatefoldCover.jpg?v=1682549565"],"price":0,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:44:34.903Z"},"share_url":"https://firestarter.network/l/lst_Yxmjh_0X","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_Yxmjh_0X' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy FREE Linen Sample Card' and a budget_max comfortably above $0.00 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."]}}