{"type":"firestarter.listing","listing":{"id":"lst_XR4JZLiM","product_name":"Handlebar Spacer Blocks (pair)","category":null,"description":"Nylon spacer blocks designed by us!These give you 1.5” of space between your bar and bag, which is good clearance for mountain bike cables or the top hand position on drop bars.We find these hard plastic spacers are great for handlebars because they’re very stable and fairly slim, but the foam ones are still better against your head tube since they’re soft (less marring) and squishy (shock absorbing).Our spacer blocks fit any diameter handlebar and are made for 1” wide straps - which you can just push through the center of the block. Injection molded (not 3d printed), so they’re very strong!Sold in pairs of two","images":["https://cdn.shopify.com/s/files/1/0799/7646/4599/files/DSC03702.webp?v=1768213169","https://cdn.shopify.com/s/files/1/0799/7646/4599/files/DSC03704.webp?v=1768213169"],"price":16,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:43.767Z"},"share_url":"https://firestarter.network/l/lst_XR4JZLiM","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_XR4JZLiM' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Handlebar Spacer Blocks (pair)' and a budget_max comfortably above $16.00 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."]}}