{"type":"firestarter.listing","listing":{"id":"lst_JJ0fiQh_","product_name":"Stringing Service","category":"Tennis String","description":"Get your newly purchased rackets strung before they ship from our warehouse.  \n$25 per racket, and the string is on us!\nAt checkout let us know what string, string gauge, mains tension, and cross tension you want for each racket by entering that information into the notes.","images":["https://cdn.shopify.com/s/files/1/0253/6210/4402/products/stringer.jpg?v=1762439973"],"price":25,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:55:57.920Z"},"share_url":"https://firestarter.network/l/lst_JJ0fiQh_","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_JJ0fiQh_' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Stringing Service' and a budget_max comfortably above $25.00 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."]}}