> For the complete documentation index, see [llms.txt](https://xai-foundation.gitbook.io/xai-network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://xai-foundation.gitbook.io/xai-network/kn/about-xai/sentry-keys-explained/who-can-operate-a-sentry-node.md).

# Who Can Operate A Sentry Node

Anyone can operate a sentry node by downloading the software, installing it, and running it. However, to accrue rewards, at least one Sentry Key must be purchased. Rewards are claimed in the non-transferable token esXAI. esXAI can be redeemed for XAI. 

To claim XAI redemptions, key holders must successfully pass a KYC check that confirms two conditions: a) they are not in the USA, and b) they are not subject to any OFAC sanctions. If you would like to know if you are subject to OFAC sanctions, you can review the OFAC website [here](https://ofac.treasury.gov/). KYC screening will be conducted by Blockpass.  [Blockpass](https://www.blockpass.org/) is leveraged by projects like Polygon, Chainlink, Cardano, Animoca and many others in the industry. 

When you purchase a Sentry Key, you must also confirm that doing so does not violate any local laws which you are subject to.\
\
Sentry nodes that are not running or not properly funded to pay for gas fees do not accrue rewards, even with a Sentry key. Therefore, operators will want to ensure that their nodes are funded, online and running.

{% hint style="info" %}

* Challenges can be missed in the event of a significant update. These updates will be announced in [Discord](https://discord.gg/xaigames) ahead of time.
* Node operators may be required to update their software to keep the nodes running
  {% endhint %}


---

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