> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Atrium Developer Guides

The MX Atrium API supports over 48,000 data connections to thousands of financial institutions. It provides secure access to your users' accounts and transactions with industry-leading cleansing, categorization, and classification.

Atrium is designed according to resource-oriented REST architecture and responds with JSON bodies and HTTP response codes.