{"type":"firestarter.listing","listing":{"id":"lst_XigrZVIl","product_name":"Intermediate Espresso","category":"Classes","description":"Do the words “extraction theory” excite you? US TOO! In this class, you'll dive deeper into espresso with our expert trainer, Marcos. We'll select two single-origin coffees to brew as espresso, dial in, and experiment with temperature and puck preparation to manipulate flavors and strength. This class is designed for intermediate- to advanced-level home baristas. \nIntro to Espresso is a recommended prerequisite. Limit 4 students per class.\nDuration: 2 hoursLocation: Dripping Springs\nDiscounts are available for baristas and other hospitality professionals! For more information, contact training@ggroasting.com.","images":["https://cdn.shopify.com/s/files/1/0939/8326/files/1239_88A4856_0326aafe-5ae0-40ab-9418-0c1b4216f4fc.jpg?v=1702407512","https://cdn.shopify.com/s/files/1/0939/8326/files/1239_88A4867_43e8431f-c875-4025-b5e7-914af2a95544.jpg?v=1702407512","https://cdn.shopify.com/s/files/1/0939/8326/files/IntermediateEspresso_bc0e87c0-623b-439e-9fa8-d5f06bc79c16.png?v=1702407512","https://cdn.shopify.com/s/files/1/0939/8326/files/IntermediateEspresso2_0b2828fa-88c3-4e17-ad5f-84bdf634afea.png?v=1702407512"],"price":175,"currency":"USD","in_stock":true,"inventory_qty":19998,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:14.343Z"},"share_url":"https://firestarter.network/l/lst_XigrZVIl","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 ","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_XigrZVIl' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Intermediate Espresso' and a budget_max comfortably above $175.00 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."]}}