{"type":"firestarter.listing","listing":{"id":"lst_unJIKb4v","product_name":"Vegan 581 | River","category":"Male","description":"Carbon Footprint | 4.81 pounds CO2e/pair (natural &amp; recycled materials are the secret for drastically reducing emissions. Compare to avg. sneaker: 13.6kg CO2e (Cheah et al, 2013))Upper | Vegan Corn (35% corn waste and 65% bio-based polyurethane (biodegradable)Outsole | Custom EVA insert rubber outsoles for industry-leading comfortFootbed | Removable molded in-soleLining &amp; Laces | 100% Bamboo","images":["https://cdn.shopify.com/s/files/1/1002/1104/files/vgnrvr1_e1bf3173-f05b-4457-9203-afac1ecb55b3.jpg?v=1742387554","https://cdn.shopify.com/s/files/1/1002/1104/files/vgnrvr3_ec5862e2-51a8-4f82-8066-1ceeb1637a7a.jpg?v=1746534162","https://cdn.shopify.com/s/files/1/1002/1104/files/vgnrvr2_78449aae-5f49-44d8-8077-69060e12947f.jpg?v=1746534162"],"price":169.99,"currency":"USD","in_stock":true,"inventory_qty":79992,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:53.398Z"},"share_url":"https://firestarter.network/l/lst_unJIKb4v","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_unJIKb4v' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Vegan 581 | River' and a budget_max comfortably above $169.99 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."]}}