{"type":"firestarter.listing","listing":{"id":"lst_g5fB6pp-","product_name":"Pick 'n' Mix Calligraphy Inks","category":"Ink","description":"Choose 4 bottles of Tom's Studio Calligraphy Ink and save 20%.\nGood to Know: \n\nNow with a handy pipette, making application mess and faff free\nInk supplied in a glass bottle\nUse with dip pens and brushes\nLightfast, permanent and water resistant\n\nNot suitable for use in fountain pens\nContents: 30ml\n","images":["https://cdn.shopify.com/s/files/1/0089/6129/4417/products/calligraphy-ink-bundle-pick-your-colours.jpg?v=1731666208","https://cdn.shopify.com/s/files/1/0089/6129/4417/products/calligraphy-ink-bundle-pick-your-colours-lifestyle.jpg?v=1731666247","https://cdn.shopify.com/s/files/1/0089/6129/4417/products/calligraphy-ink-all-colours.jpg?v=1731665521"],"price":49,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:23.852Z"},"share_url":"https://firestarter.network/l/lst_g5fB6pp-","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_g5fB6pp-' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Pick 'n' Mix Calligraphy Inks' and a budget_max comfortably above $49.00 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."]}}