About
Open Source Wallet as a Service that provides easy to use REST API endpoints for sending/receiving bitcoin

How is this different

• Supports automatic batching to minimize fee- Very useful when sending funds out in time of high network congestion
• Gets up running instantly - No need to wait for days to sync blocks
• Is lightweight and can run on simple 5$ VPS - Unlike bitcoin core and similar disk / memory heavy daemons

Github Source
https://github.com/blockonomics/wallet_service

Feel free to get back with suggestions or comments