{"type":"firestarter.listing","listing":{"id":"lst_Jzib64Ov","product_name":"Humic Acids","category":"Tools & Supplies","description":"Down to Earth Granular Humic Acids is a highly concentrated source of humic substances. Humic acids are known for their soil building and improving capabilities. They retain water, prevent nutrient leaching, and help nutrient uptake for roots and leaves of plants. Naturally occurring, unaltered oxidized lignite, Granular Humic Acids are crushed, screened and graded to a particle size of 1-3mm.","images":["https://cdn.shopify.com/s/files/1/0072/0909/1117/files/IMG_9199.jpg?v=1689865736","https://cdn.shopify.com/s/files/1/0072/0909/1117/products/Humic-Acids-vendor-unknown-1630679917.jpg?v=1689865736"],"price":15.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:38.221Z"},"share_url":"https://firestarter.network/l/lst_Jzib64Ov","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_Jzib64Ov' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Humic Acids' and a budget_max comfortably above $15.99 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."]}}