EcoRegistry (Cercarbono): Import Credits to Carbonmark
How to transfer credits from EcoRegistry to Carbonmark
This is the path for a project developer or trader who holds credits on EcoRegistry and wants to list them for sale, or retire them, through Carbonmark.
Before you start
An active Carbonmark account, verified through onboarding, with a Base account wallet established after onboarding (this can be done in a self-service manner via Carbonmark's account tooling)
An active EcoRegistry account holding the credits you want to move.
Each transfer
When logged in to your EcoRegistry account, navigate to the trading menu and select Base Network.
Select the project, vintage, and batch amount you'd like to send to your Carbonmark account. Update the Wallet account number with the Base wallet address assigned to your Carbonmark account.
Double check your Base wallet address on both platforms to ensure credits are transferred correctly.
Click Transfer. Your credits will arrive to your Carbonmark account in a few seconds and be viewable from your Carbon Portfolio page.
Then list or retire. Once credits appear in your Portfolio, set your price and list them on the Marketplace, or retire them in your own name. Carbonmark charges sellers nothing to onboard or list; fees apply on the buyer side when a transaction happens.
⚠️ Whole tonnes only, for now. As of August 2026, EcoRegistry-issued credits can be retired on Carbonmark only in whole-tonne units, not the 1 kg fractions available on other credit types. We are working with EcoRegistry to support fractional retirement.
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