{"type":"firestarter.listing","listing":{"id":"lst_IBGXn2dP","product_name":"CfM Oxalis","category":null,"description":"CfM Oxalis captures the cheery yellow of the California wildflower also known as Woodsorrel, which Bay Area locals might remember from childhood as Sourgrass. Here in San Francisco, Oxalis seems to pop up from every available patch of soil in mid-February, and we wanted to celebrate this annual harbinger of spring! \nOxalis flowers make a wonderful, potent natural yellow dye, and CfM Oxalis was inspired by the flower and the slightly more orange dye bath. It's a bit more yellow than our Egg Yolk and a bit more orange than our Citron, with that nice touch of milkiness we love—a bright, buttery hue that can lend a delicate accent or bold field of color perfect for florals!\nAll of our watercolors are handmade in our shop using the highest quality earth and synthetic pigments, plus natural watercolor binding medium made from gum arabic (sap from acacia trees), honey, glycerine, distilled water, and a dash of clove oil for freshness!\nHalf Pans measure ~3/4\" x 1/2\" x 3/8\" and contain ~2ml of paint.\nOur custom blended colors don't have a Color Index number, as they consist of a unique blend of two or more pigments. All of our watercolors conform to ASTM D-4236.","images":["https://cdn.shopify.com/s/files/1/0631/2017/9426/files/CfMOxalis.jpg?v=1710887827","https://cdn.shopify.com/s/files/1/0631/2017/9426/files/CfMOxalisSquare.jpg?v=1710887838","https://cdn.shopify.com/s/files/1/0631/2017/9426/files/Watercolor_Half_Pan_Trio.jpg?v=1773278386"],"price":12,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:21.840Z"},"share_url":"https://firestarter.network/l/lst_IBGXn2dP","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_IBGXn2dP' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy CfM Oxalis' and a budget_max comfortably above $12.00 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."]}}