> For the complete documentation index, see [llms.txt](https://docs.blockcast.network/main/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blockcast.network/main/getting-started/how-do-i-participate-in-the-network/cast.md).

# CAST

Blockcast CAST Nodes are powerful cache servers that form the backbone of the Blockcast Network, delivering content efficiently to thousands of users.

* **Action**: Serve content to a large audience and provide multicast coverage
* **Things you can do with CAST:**
  * Serve as high-capacity content caches for large-scale delivery
  * Provide multicast coverage to underserved areas
  * Balance and route network traffic efficiently
  * Earn (lots of) rewards for serving mid-tier CDN traffic for Blockcast Network
* **How do I become a CAST node?**
  * CAST Nodes are strategically placed where they're needed most. You may qualify to run a CAST Node if you have:
    * Access to a data center or high-throughput network connection
    * or Coverage area with 1000+ active BEACON and RELAY nodes
    * or Ability to serve multiple RELAY nodes through AMT (Automatic Multicast Tunneling)
  * If you have access to a high throughput data connection (uplink) or sit on a multicast native network, we want to hear from you. Please fill this [interest form](https://forms.gle/MX9kawBsdKhHgqou6).