Announcing River Lightning Services (RLS)

https://blog.river.com/announcing-river-lightning-services-rls

Insights From The 4th Largest Lightning Network Node

https://river.com/learn/files/river-lightning-report.pdf

bitcoin

River Lightning Services - Bitcoin Lightning API for Developers

Also see:

*Announcing River Lightning Services (RLS)*
https://stacker.news/items/80196
https://blog.river.com/announcing-river-lightning-services-rls

and 

*Insights From The 4th Largest Lightning Network Node*
https://stacker.news/items/80258
https://river.com/learn/files/river-lightning-report.pdf