{"type":"firestarter.listing","listing":{"id":"lst_7foWfoz7","product_name":"Indigo","category":null,"description":"Indigo was one of our first handmade watercolors, a must-have in a palette! This rich synthetic color simulates genuine Indigo and provides a wide range of tones—at its darkest it appears almost black!\nGenuine Indigo is extracted from the leaves of the Indigo plant (Indigofera Tinctoria) through a fermentation process. It's one of the oldest natural dyes used historically across India, China, and Japan for textiles and printing, and was the only source of the color until around 1900, when it was first formulated synthetically for commercial use.\nThis color is not lightfast, and may fade in direct sunlight. Fading can be reduced by coating finished pieces in a UV protective varnish and/or keeping them out of direct sunlight.\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.\nColor Index number as provided by vendor: PB 66.73000. All of our watercolors conform to ASTM D-4236.","images":["https://cdn.shopify.com/s/files/1/0631/2017/9426/products/Indigo_3b68a8a2-c9ed-452e-9209-b13eadb1a1c4.jpg?v=1657762580","https://cdn.shopify.com/s/files/1/0631/2017/9426/products/Indigo-Square_fba18fa3-3f73-4cc7-a2e9-39ef39be3fcf.jpg?v=1657762580","https://cdn.shopify.com/s/files/1/0631/2017/9426/files/Watercolor_Half_Pan_Trio.jpg?v=1773278386"],"price":6,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:22.412Z"},"share_url":"https://firestarter.network/l/lst_7foWfoz7","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_7foWfoz7' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Indigo' and a budget_max comfortably above $6.00 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."]}}