{"type":"firestarter.listing","listing":{"id":"lst_9_sHfMQO","product_name":"San Francisco Seals 1957 Vintage Ballcap","category":"Headwear","description":"\nDescription: Authentic reproduction of the original 1957 San Francisco Seals ballcap. Hand-sewn from genuine wool baseball cloth.  \nProduct Details:\n\n\n\nMade in the USA\n\nGenuine navy wool broadcloth, embroidered \"SF\"\n\nStandard visor with green satin under visor\n\nVintage hair cloth backed buckram crown\n\nSatin taping with cotton sweatband\nItem #: SFS57C\n\n\n\nLeague: Pacific Coast League\nHistory: Back by popular demand, this style was worn during the Seals' final two seasons in the Coast League (they were displaced by the Giants in 1958). The Seals went out in style, winning the pennant in the league's final season of its \"independent\" era. Ken Aspromonte hit .334 and pitcher Leo Kiely won 21 games in the Seals' last campaign.","images":["https://cdn.shopify.com/s/files/1/1487/1618/products/San-Francisco-Seals-1957-Ballcap.jpg?v=1546473942","https://cdn.shopify.com/s/files/1/1487/1618/products/SFS57C-ani.gif?v=1546473942","https://cdn.shopify.com/s/files/1/1487/1618/products/navy-fit_c4a9ad84-7e5d-4d3d-84cb-e19c9c8e0b1a.jpg?v=1546473942","https://cdn.shopify.com/s/files/1/1487/1618/products/navy-adj_c8992289-1652-4570-aadf-6fd1a72be027.jpg?v=1546473942"],"price":28,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:30:37.539Z"},"share_url":"https://firestarter.network/l/lst_9_sHfMQO","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_9_sHfMQO' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy San Francisco Seals 1957 Vintage Ballcap' and a budget_max comfortably above $28.00 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."]}}