{"type":"firestarter.listing","listing":{"id":"lst_DNNfsx2b","product_name":"Replacement Erasers for Blackwing Pencil (Cream)","category":"Eraser","description":"Replacement Erasers for Blackwing Pencils - CreamMade in VietnamSleeve of 10 Replacement Erasers\n \nOne of the beautiful things about the Blackwing design is the ferrule which allows the eraser to be easily replaced.  Blackwing erasers are gentle and non-messy (they don't crumble).\nIt is also fun to mix and match and switch the colors of your eraser with which pencil you put them in!\nI specifically choose to use the Cream Replacement Erasers in any of the pencils I'll be using for drawing and sketching on ivory or cream colored paper.  This is because they match the paper.  While colorful erasers are lots of fun, they can sometimes leave behind colored smudges and smears.\n© Greenleaf &amp; Blueberry 2020www.greenleafblueberry.com","images":["https://cdn.shopify.com/s/files/1/1696/5931/products/IMG_4201.jpg?v=1607726732"],"price":2.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:24.557Z","product_rating":null,"product_rating_count":0,"seller_rating":null,"seller_rating_count":0,"units_sold":0,"reviews":{"count":0,"top":[]},"videos":[]},"share_url":"https://firestarter.network/l/lst_DNNfsx2b","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_DNNfsx2b' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Replacement Erasers for Blackwing Pencil (Cream)' and a budget_max comfortably above $2.95 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."]}}