> For the complete documentation index, see [llms.txt](https://docs.carbonmarketshq.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.carbonmarketshq.com/welcome.md).

# Welcome

CarbonMarketsHQ is building data infrastructure that brings standardization and intelligence to carbon projects. It provides a unified GraphQL API to access carbon projects, corresponding issuances, retirements, pricing and ratings data around the world.

With the CarbonMarketsHQ API, you can:

* Access 22000+ carbon projects data across different registries through a single GraphQL endpoint
* Embed key metrics and generate on-demand graphs within your application

## Want to jump right in?

Feeling like an eager beaver? Jump in to the quick start docs and get to making your first request:

{% content-ref url="/pages/oqFcBsEf0IesXkarPpSt" %}
[Quick Start](/quick-start.md)
{% endcontent-ref %}

## Want to deep dive?

Dive a little deeper and start exploring our API reference to get an idea of everything that's possible with the API:

{% content-ref url="/pages/UkGMbBW7ZhSVKKp5HATZ" %}
[GraphQL API](/reference/graphql-api.md)
{% endcontent-ref %}