> For the complete documentation index, see [llms.txt](https://carbonlink.gitbook.io/carbonlink-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://carbonlink.gitbook.io/carbonlink-api/core.md).

# CORE

- [API reference](https://carbonlink.gitbook.io/carbonlink-api/core/api-reference.md): Learn how to retrieve data and execute actions with different API endpoints
- [Product](https://carbonlink.gitbook.io/carbonlink-api/core/api-reference/product.md): Build templates for automating emission estimations
- [Factor](https://carbonlink.gitbook.io/carbonlink-api/core/api-reference/factor.md): Find emission factors in the Carbonlink Emission Factor Database
- [Asset](https://carbonlink.gitbook.io/carbonlink-api/core/api-reference/asset.md): Search through hundreds of sustainability projects and pools.
- [Offset](https://carbonlink.gitbook.io/carbonlink-api/core/api-reference/offset.md): Use carbon credits from the Carbonlink Asset Library to negate carbon emissions.
- [Estimate](https://carbonlink.gitbook.io/carbonlink-api/core/api-reference/estimate.md): Track carbon emissions at the source.
- [Data objects](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects.md): Learn types and structure of data returned by different API endpoints
- [Factor](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects/factor.md): Contains data related to the individual emission contributions of a single physical or financial property of a good or service.
- [Product](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects/product.md): Contains data related to the estimation of a good or service's emissions from a set of underlying emission factors.
- [Asset](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects/asset.md): Wraps around a Pool or Project object to provide additional data on a carbon asset.
- [Project](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects/asset/project.md): Contains data about a carbon credit project from the Carbonlink Asset Library.
- [Vintage](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects/asset/project/vintage.md): Contains data on one year of carbon asset production for a project.
- [Pool](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects/asset/pool.md): Contains data about a carbon credit Pool from the Carbonlink Asset Library.
- [Estimate](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects/estimate.md): Contains data related to the emission estimation of one or more goods and services.
- [Offset](https://carbonlink.gitbook.io/carbonlink-api/core/data-objects/offset.md): Contains data related to the action of purchasing an amount of carbon credits and removing that amount of credits from circulation.


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