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

# References

{% hint style="info" %}
**Abyiss Centralized Exchange API Reference Documentation** 
{% endhint %}

Welcome to the Abyiss Centralized Exchange API Reference Documentation. Here, you can learn about the unique characteristics and core concepts behind our centralized exchanges API.

Please note that you will need an account and API Key to access these endpoints. If you don't have an account yet, you can create one by [clicking here](https://abyiss.com/signin). To learn more about API Keys and Authorization, please [click here](/introduction/api-architecture/api-keys-authentication.md).

The following topics are covered in this documentation:

* [Supported Exchanges](/crypto-api/references/supported-exchanges.md)
* [Historical Data](/crypto-api/references/historical-data.md)
* [Pagination](/crypto-api/references/pagination.md)
* [Return Types](/crypto-api/references/return-types.md)

If you have any questions or need further assistance, please don't hesitate to contact our support team at <support@abyiss.com>.