Welcome to the CDR.fyi API documentation. We can’t wait to see what you build on the largest platform for carbon removal data.


The CDR.FYI API is designed to help you interact programmatically with our platform. Our API is organized around REST and uses standard HTTP response codes, authentication, and verbs.

NOTE: You will need access to the CDR.fyi Partner Portal to use the API. If you do not have access, apply here.

Base URL

All URLs referenced in the documentation have the following base:


Table of Contents

  • Authentication: Learn how to authenticate your API requests using bearer tokens.

  • Orders: Retrieve and create order records.

  • Suppliers: Retrieve and create supplier records.

  • Marketplaces: Retrieve and create marketplace records.

  • Purchasers: Retrieve and create purchaser records.

  • Projects (Beta): Retrieve project records.

  • Changelog: Stay up to date with changes to our API.

For further details and support, feel free to reach out to us. We’re here to help you succeed. Happy coding!