ZAN supports node services for 9 public chains, including BTC！

[ZAN_Team]

ZAN Node has recently added node service functions for 5 new public chains and now supports 9 mainstream public chain protocols, including Bitcoin, Ethereum, Binance Smart Chain, Polygon, Sui, Aptos, Arbitrium, Optimism, and Tron! Join our Beta Testing Program and give us your feedback.

You can reach us on Twitter by searching for @zan_team or by following our official account at https://twitter.com/zan_team.

We welcome any questions or suggestions you may have.

Thank you！

[Husires]

you need to create ANN page and update it from time to time, create a topic here Service Announcements, add some pictures and designs to make it attractive and easy to read
Is this a service to monitor and track these blockchains, or is it a multi-bridge cross-chain for exchange between these cryptocurrency pairs?

https://zan.top/home/node-service/

I tried to understand the nature of the service but could not. Is it a third party service that runs a full node and why is there a pricing policy?