{"type":"firestarter.listing","listing":{"id":"lst_coDRzh7j","product_name":"The 'One Dip Wonder'","category":"Calligraphy","description":"The 'One Dip Wonder' really is a game changer – a nifty little spring reservoir that can be added to any nib. Having to dip your pen in ink half-way through writing can ruin your flow, cause an inky mess and take up your precious calligraphy time. No more!\nAfter months of trial and error I've found the perfect answer to this problem!\n The 'One Dip Wonder' combines the perfect size spring with a tiny but powerful neodymium magnet creating a reservoir of ink for your calligraphy pen\nAll you have to do is pop it onto the back of the nib (underneath the breather hole) and you're ready to go!  \nAs you can see from the video it doesn't stop flowing!  \nSee Milly from @blinklettering 's fantastic review here:\n\nGOOD TO KNOW:\n- The One Dip Wonder currently works with larger straight nibs like Nikko Gs, EF Principals, Hunt 101s, Blue Pumpkin etc. (Brause EF is not currently compatible. )\n- Please be sure to clean and dry your spring and magnet after each use to prolong their life.\n- We have found that the One Dip Wonder will not work with certain colours in the Finetec metallic ink palettes. Our metallic calligraphy inks and Fountain pen inks appear to work well however. Please be aware of this when ordering. ","images":["https://cdn.shopify.com/s/files/1/0089/6129/4417/products/the-one-dip-wonder-calligraphy-tool.jpg?v=1732791023","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/one-dip-wonder-packaging.jpg?v=1741256439","https://cdn.shopify.com/s/files/1/0089/6129/4417/files/one-dip-wonder.jpg?v=1741256439","https://cdn.shopify.com/s/files/1/0089/6129/4417/products/the-one-dip-wonder-calligraphy-tool-in-use.jpg?v=1741256439"],"price":6,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:24.294Z"},"share_url":"https://firestarter.network/l/lst_coDRzh7j","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_coDRzh7j' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy The 'One Dip Wonder'' 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."]}}