{"type":"firestarter.listing","listing":{"id":"lst_NU-YZ7n9","product_name":"4 Nib Case","category":"Pen Cases","description":"♦ We sell a lot of extra nibs to the fountain pen aficionados of our clientele and this is a storage solution for those extra nibs. ♦ The bands keep a firm grip holding against the padded fabric interior. ♦ Exterior is made of your choice black napa leather, or our NWF (Natural Wood Fiber) in Cranberry or Denim Blue options. ♦ Smoothly functioning zipper♦ Nibs large and small will fit securely♦ Tuck them away nicely in your gear bag, desk, or even coat pocket.♦ Free Priority Mail Shipping on domestic orders $50 and over. Free FedEx or Priority Mail shipping on international orders $100 and over. Dimensions:5.75\" x 3\" x .75\" 146mm x 76mm x 19mm","images":["https://cdn.shopify.com/s/files/1/0023/7679/4187/products/Nib4NWFCMS.jpg?v=1612552341","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/Nib4CaseNWFCranberry.jpg?v=1612552341","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/Nib4CaseDenim.jpg?v=1612552341","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/Nib_4_Single_Closed.jpg?v=1612552341","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/image0_d1748696-f11b-4d56-a736-00c5c927424f.jpg?v=1612552333","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/image4_9c8206b3-098f-4708-8587-da2f0746d304.jpg?v=1612552333","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/4_nib_case_open.jpg?v=1612552333","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/Nib4_Case_Open.jpg?v=1612552333","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/image2_479f6fae-f236-4231-a001-9cba3992c645.jpg?v=1612552333","https://cdn.shopify.com/s/files/1/0023/7679/4187/products/Nib4CaseNWFCranopen.jpg?v=1612552333"],"price":23.6,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:20.509Z"},"share_url":"https://firestarter.network/l/lst_NU-YZ7n9","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_NU-YZ7n9' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy 4 Nib Case' and a budget_max comfortably above $23.60 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."]}}