Hi,
I have made this graphql api in nodejs, this is the endpoint to consume the api
https://libra-graphql.herokuapp.com/
You can visit this url to play around with graphql playground.
There are 4 queries - queryByAddress, queryBySequenceNumber, querySentEvents, and queryReceivedEvents.
And there are 3 mutations - createAccount, mintCoin, and transferMoney.
Documentation for using the api will be coming soon.
Thank you.