| Project ID | String | Yes | Automatically assigned unique identifier |
| Name | String | Yes | Name of the project |
| Slug | String | Yes | Slug for the projects |
| Supplier ID | String | Yes | Identifier for the supplier (parent) |
| External ID | String | No | Unique identifier used by marketplace or registry |
| Marketplace IDs | Array | No | Identifiers for marketplaces listing the project |
| Geo City | String | No | City where the project is located |
| Geo Country | String | Yes | Country where the project is located |
| Geo Address | String | No | Textual address of the project |
| Geo Coordinates | Object | No | {lat, lon} coordinates of the project |
| Geo Continent | String | Yes | Continent where the project is located |
| URL | String | No | URL of the project page on the supplier/registry |
| Type | String | Yes | Facility | Land Area |
| Status | String | Yes | Announced | Operational |
| Description | String | Yes | Description of the project |
| Area | Integer | No | Area in hectares |
| Estimated Annual Capacity | Integer | No | Estimated annual net capacity in tonnes of CO2 |
| Method | String | Yes | Method of carbon removal |
| Submethod | String | Yes | Submethod of carbon removal |
| Registry ID | String | No | Identifier for the registry |
| Verifier/Validator Names | Array of Strings | No | Names of verifier/validator organizations |
| Proponent Names | Array of Strings | No | Names of project proponents |
| Methodology Names | Array of Strings | No | Names of the methodologies used |
| Accreditation Standards | Array of Objects | No | Accreditations with name and distinctions |
| Year Commissioned | Integer | No | Year the project was commissioned |
| Project Start Date | Date | No | Date when crediting period begins |
| Estimated Operational Lifetime | Integer | No | Expected operational lifetime in years |
| Stage | Picklist | No | ’Pilot’, ‘Demonstration’, ‘Commercial’ |
| Storage Description | String | No | Description of CO2 storage methods |
| Capacity Notes | String | No | Notes on capacities for projects with multiple sites |
| Initial Annual Capacity | Integer | No | Initial removal capacity |
| Annual Capacity at Scale | Integer | No | Peak removal capacity once fully operational |
| Permanency Level | String | No | Minimum years CO2 is expected to be sequestered |