CarbonGuru is the first automated carbon footprint and offsetting service for everyday purchases. See the footprint of anything you buy, then offset or remove it in one step, for pennies on most purchases. It works on product pages, carts, receipts and orders on any site, in Gmail and webmail, and through Claude, ChatGPT or any MCP agent. Automate it with your agent, or schedule offsets that renew monthly. Verified offsets and removals, credit retirement handled. Free account and tools.