Generate a payment URI: `curl -L -H 'Content-Type: application/json' -d '{"outputs":[{"address":"1NLcNpAaBBMekgBZk7NxwdxwtSUTfTV8Aq","amount":560}],"currency":"ecash"}' https://pay.badger.cash/create_invoice`
Run `src/qt/bitcoin-qt`
Menu `File` > `Open URI`
Paste the "ecash:?r=<url>" (replace <url> with the url in the reply to the curl command, e.g. https://pay.badger.cash/i/DTKP4
Send
Repeat with the be.cash API:
`curl -L -H 'Content-Type: application/json' -d '{"values":{"network":"XEC","outputs":[{"value":3000,"scriptHex":"76a914154205358162a6f59457d83dea828a15261aaba388ac"}]}}' https://p.be.cash/create-invoice`